Bicep2-list September 2012

bicep2-list@lists.fas.harvard.edu

7 participants
14 discussions

BICEP2 team meeting today (7 Aug 2012), unusual time: 2-3pm Pacific

by John Kovac

Hi all, BICEP2 team meeting today (Tues) will be 2-3pm Pacific, so that Walt can join: Phone: 1-866-890-3820 (toll: 1-334-323-7229) Passcode:59702175 group discussion terminates at 1 hour, any wrap-up discussion < 90 min. Here is today's agenda: 1) Weekly report from Pole [ Steff ] - cryo - bicep.rc / data transfer - weather: cold and clear 2) Data quality / reduc czar report This week's report [ Angiola's email ] status of B2 2012 re-reduction [ Angiola/Randol ] status of cut definitions / reduc to-do Next week's czar? 3) General news and plans - new mailing list working? - SPIE papers posted...thanks. 4) Analysis pipeline news and plans see notes below - pipeline telecon Friday 10 Aug, 4 eastern, 3 central, 1 pacific 5) Other Postings 2012 Aug 1: Generating Synfast Maps with WMAP noise (JET) Updated Aug 3 2012 Aug 6: Sim 1205/1206 (CDS) 2012 Aug 6: Guide to running a simset (CDS) end of today's agenda. Notes from yesterday: ----------------------------------------------------------------------- 6 Aug 2012 B2 analysis/pipeline telecon On the line: John, Randol, Colin, Abby, Chris, Angiola, Jon B2 reduction (2:00-2:30 eastern) ----------------- status of Angiola's B2 2012 re-reduction [ Angiola / Randol / Chris to summarize ] disk space on bicepfs1 and panlfs - John to ask P Edmon again for quotes [done, quotes for 56 TB more are coming] status of thermal stability from Jon: - Jon is working on season-split (alternate days?) NTD jacks - will post updated outline of thermal stability project/paper for tomorrow Pipeline telecon (2:30-3:30 eastern) ---------------------- WMAP-like noise added to synfast input maps - Jamie Tolan not on, but briefly discussed his posting (further discussion Tue/Fri) - IDL-free, incl. matlab fits binary writer -- awesome. - noise levels (e.g. 67uK) defined for what area? - Should we consider more than W-band? Randol says yes, V-band is what he used. Abscal: Chris recently changed get_ukpervolt for B2 to 3071, from 3605. - We need clear abscals for each different B2 epoch! - Angiola to ask Justus for summary of work done on this, incl. vs. ell consistency Plan for closed loop sim/deproj tests: 1. input sim systematics @ best guess B2 level. What are these? a. relgain--we need closure from per-det abscal or per-pair T/dif leakage [ Justus / Walt?] http://bmode.caltech.edu/~spuder/analysis_logbook/analysis/20120117_wmapxco… b. diff pointing - beams_ab_cmb_bicep2_20100101.csv (per det fits from CMB, Walt) c. diff beam size - ? d. diff ellipticity - ? 2. generate timestreams using 3 sim algorithms: a1. linear systematic introduced using same template as deproj a2. best realistic model a3. best realistic model x2 a1 gives us a check to numerical accuracy (for deprojection on nopol input) and a clean test of E-to-B only (for deprojection on EnoB input). a2 or a3 is what we use by default; the ability to increase accuracy by 2x (e.g. doubling nsides, or the number of beamwidths used for interpolation) and verify negligible difference in coadded output maps assures us that sim timestreams are “close enough to reality”. 3. Deproj using linear basis constructed from derivatives. what is status of gen_templates? [Randol] width/ellipticity? strategy for interpolation? Randol's posting here serves as a model: http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20120404_diffpoi… We need to identify a limited set of tags to run this on, and run full signal (nopol, EnoB, BnoE) and scaled-noise sims. Each of the signal sims should be generated without systematics, and with systematics using the 3 sim algorithms. Each of these simsets should be mapped and processed to aps with and without deprojection. We do this first for relgain, diffpoint, and diffwidth separately, and then in combinations.

11 years, 6 months

Reduc czar notes, Aug 18 - Sep 1

by Randol Aikin

Hi All, Examining 20120818F05-20120830I06. Looks like we're all caught up on the SPTR transfer. Weather generally good with a few periods of marginal weather. A few scansets to note: Here are two examples of relatively bad weather (particularly mediocre elnods) that are not being cut by round2 cuts: http://bicep.rc.fas.harvard.edu/bicep2/reducplots/browser/?20120818F09_dk24… http://bicep.rc.fas.harvard.edu/bicep2/reducplots/browser/?20120818F10_dk24… Similarly, a very high std set not being cut: http://bicep.rc.fas.harvard.edu/bicep2/reducplots/browser/?20120827C07_dk11… There was one extremely bad looking scanset, probably due to snow on the window or else some kind of optical interference. http://bicep.rc.fas.harvard.edu/bicep2/reducplots/browser/?20120830B01_dk24… I'm particularly worried that this isn't completely failing elnod cuts. In the notes below, I note all scansets that are entirely cut and list the cut responsible. There are also a large number of scansets missing plots for the round 1 and/or 2 cuts. I think we need to modify the driver scripts to check for those missing data products. Randol Weather/Data Anomolies/Cuts ------------------ 20120818F09 - Bad wx - not cut 20120818F10 - Bad wx - not cut 20120818G02 - Entirely cut - scanset_std 20120818G07 - Entirely cut - stationarity_ab 20120818H02 - Entirely cut - stationarity_ab 20120818I02 - Half of the data cut - stationarity_ab 20120818I03 - Entirely cut - stationarity_ab 20120821B02 - Entirely cut - stationarity_ab 20120821B03 - Entirely cut - stationarity_ab 20120821B04 - Entirely cut - stationarity_ab 20120821B06 - Entirely cut - stationarity_ab 20120821C01 - Entirely cut - stationarity_ab 20120821I02 - Step in trailing elnod - not cut 20120821I05 - Entirely cut - stationarity_ab 20120824B03 - Step in leading elnod - not cut 20120824E01 - Entirely cut - stationarity_ab 20120824F02 - Entirely cut - scanset_std 20120824F03 - Entirely cut - scanset_std 20120824F07 - Entirely cut - scanset_std, stationarity_ab, elnod_fracdel 20120824F08 - Structure in elnods 20120824G02 - Structure in elnods 20120827B03 - Entirely cut- stationarity_ab 20120827C05 - Entirely cut- scanset_std 20120827F01 - Entirely cut- stationarity_ab 20120827F08-F10 - 1/f in pair diff not cut 20120830B01 - Entirely cut- stationarity_ab - nasty steps in leading elnod 20120830B02 - Entirely cut- stationarity_ab 20120830H01 - Entirely cut- scanset_std 20120830H02 - Entirely cut- scanset_std 20120830I05 - Entirely cut- stationarity_ab Reduc problems: ------------------ 20120818 - Cal incomplete 20120821B05 - missing 20120821H06 - missing 20120821I06 - missing round 2 20120821I07 - missing round 2 20120824B02 - missing round 2 20120824B04 - missing round 2 20120824B05 - missing round 2 20120824C04 - missing round 1/2 20120824C06 - missing round 2 20120824E03 - missing round 2 20120824E07 - missing round 2 20120824E08 - missing round 2 20120824E09 - missing round 2 20120824F09 - missing round 1/2 20120824G01 - missing 20120824H02 - missing round 1/2 20120824H04 - missing round 1/2 20120824H07 - missing round 2 20120824H08 - missing round 1/2 20120824I03 - missing round 1/2 20120824I08 - missing round 1/2 20120827D05 - missing round 1/2 20120827E05 - missing round 2 20120827G05 - missing round 2 20120827H03 - missing round 1/2 20120827H10 - missing round 2 20120827I09 - missing round 2 20120830B04 - missing round 1/2 20120830B05 - missing round 1/2 20120830C05 - missing round 1/2 20120830C06 - missing round 1/2 20120830C10 - missing round 1/2 20120830D02 - missing round 1/2 20120830D05 - missing round 1/2 20120830E01 - missing round 1/2 20120830E02 - missing round 1/2 20120830E09 - missing round 1/2 20120830F04 - missing round 2 20120830F05 - missing round 1/2 20120830G06 - missing round 2

11 years, 7 months

2012-09-25 Weekly Report

by Steffen Richter (BICEP2)

Hi All, Observing: ---------- 120923 07:38:24 - still running * 9_CMB_36d_dk248_015.sch 120923 07:29:12 - 120923 07:30:37 * mce_autotune.sch * MASD restart, DSP driver reload & mce_reset_clean, GCP restart after running schedule. 120923 07:25:11 - 120923 07:25:28 * mce_autotune.sch * Failed 120923 02:00:05 - 120923 02:05:43 * do_cycle.sch * Tilts: az 0° 180° x -8.904 -9.432 y 9.602 10.514 * dk=0 mark OK * cleaned GS, boot, UFB, LFB, window * Membrane 0.12/0.40 120920 07:36:26 - 120923 01:39:14 * 9_CMB_36d_dk113_015.sch 120920 07:28:46 - 120920 07:30:11 * mce_autotune.sch * MASD restart, DSP driver reload & mce_reset_clean, GCP restart after running schedule. 120920 02:14:44 - 120920 02:20:29 * do_cycle.sch * Tilts: az 0° 180° x -8.904 -9.377 y 9.393 10.778 dk=0 mark OK cleaned GS, boot, UFB, LFB, window Membrane 0.12/0.4 120917 07:52:21 - 120920 01:51:02 * 9_CMB_36d_dk068_015.sch * MCE error @ 120917 15:20:57: /usr/mce/mce_script//script/mce_update_userword: line 27: array_integer + 256 * Reply does not match command. : syntax error: invalid arithmetic operator (error token is ". ") * MCE error @ 120918 16:04:58: /home/bicep/gcp/control/../masd/specific/scripts/mce_fast_pipe: line 74: 50000000 / Reply does not match command. / 60 : syntax error: invalid arithmetic operator (error token is ". / 60 ") /home/bicep/gcp/control/../masd/specific/scripts/mce_fast_pipe: line 77: / 140 : syntax error: operand expected (error token is "/ 140 ") Telescope: ---------- - A few non-fatal MCE errors - Load leveler room exhaust fan troubles continue. The fan belt broke on the cooling air handler. Managed to get it under control before we started scanning on 9/20. Cynthia saved the day. She was the only one small enough to be able to reach the belt (marvel of engineering). Even before this happened, I requested the motor to be changed, as it was quite noisy. This will happen tomorrow during the fridge cycle. Right now it is getting too cold in the load leveler room. Waiting for someone to turn up to look at it. Weather -------- - Windy and overcast, followed by some clear days Cryogenics: ----------- * Tracking spreadsheet at http://bicep.rc.fas.harvard.edu/bicep2/south_pole_helium_usage/Summer_2011_… Boiling off remaining liquid in Simon and pumping it into the half rack. * Kathleen's Cryo Sitrep: LHe: • Approximately 4400 liters of useable LHe remain in the Wessington dewars. • Approximately 250 liters of LHe were delivered to BICEP2. • Based on a historical consumption rate of 35.7 liters/day, LHe supplies are expected to be exhausted by January 2013 GHe: • Out of 16 storage tanks for gaseous helium: 7 tanks are at 17.2 MPa (2500 psi), one tank is at 13.8 MPa (2000 psi), one tank is at 10.3 MPa (1500 psi), one tanks is at 5.7 MPa (850 psi), one tank is at 3.5 MPa (500 psi), one tank is at 1.4 MPa (200 psi), two tanks are at 1.0 MPa (150 psi), and two tanks are at 0 MPa (0 psi). • Vent GHe from the LHe transfer was compressed into the storage tanks. LN2: • The liquid nitrogen plant tuned off all week • Approximately 300 liters of LN2 are currently stockpiled on station. Analysis/software/computers: ---------------------------- - Nothing to report Cheers, Steffen

11 years, 7 months

Reduc czar notes, Sep11- Sep 18

by Jon Kaufman

20120908F07 through 20120917C10 Not much to report, weather looked good, cuts are working very well. Very few missing data products. *tags worth noting:* 20120908G02 - entirely cut stationarity_ab 20120908I08 - jump in trailing elnod (maybe just one channel) 20120911B09 - entirely cut stationarity_ab, skewness_diff, num_destep 20120911B10 - entirely cut skewness_diff, stationarity_ab, stationarity_diff, num_destep 20120911C01 - particularly noisy channel passes cuts 20120911C02 - steps in leading elnod, passes cuts 20120911C08 - step in leading elnod, passes cuts 20120911D02 - noisy channels pass cuts 20120911D03 - noisy channels pass cuts 20120911F04 - noisy channel passes cuts 20120911H01 - entirely cut stationarity_ab 20120911I05 - entirely cut stationarity_ab 20120914B01 - entirely cut num_destep 20120914B04 - entirely cut stationarity_ab, num_destep 20120914B05 - entirely cut skewness_dif, stationarity_ab, staionarity_diff, num_fj, num_destep 20120914C10 - entirely cut stationarity_ab 20120914F01 - entirely cut stationarity_ab 20120914F04 - entirely cut stationarity_ab 20120914F07 - entirely cut stationarity_ab *reduc problems:* 20120908H02 - missing round2 20120908H04 - missing round2 step in trailing elnod 20120908H05 - missing round2 20120908H09 - missing round2 -Jon

11 years, 7 months

BICEP2 team meeting notes 2012-sep-11

by Walt Ogburn

11 Sep 2012 BICEP2 weekly telecon On the line: Havard: John Kovac Stanford: Walt, Jamie T. JPL: Hien Caltech: Randol, Jamie B., Pete, Jeff San Diego: Jon Kaufman Minnesota: Clem, Stefan, Chris 1) Weekly report from Pole [ Steff ] - looks like another good CMB week, weather good to overcast - load leveler fan / bldg temp disruptions during last schedule Do we have a way to pinpoint this? - cryo: drawing down Theo now, looking fine 2) Data quality / reduc czar report Aug 18 - Sep 1 report [ Randol ] Missing reducplots Need fixes to code checking all reducplots made Listed large # tags missing round 1 / round 2 cut plots AI: Randol to fix code AI: Look at why jobs are failing -- timing out short_serial? Stationarity_ab cut removing large amount of data. Some scansets with mediocre weather not being removed by elnod cuts. 20120827C07 -- looks like v. large sky gradient, bleeding into pair diff p1-3 modes. Not cut! should it be? Does the p3 filtered data look OK? 20120830B01 -- snow on window? Correctly cut. But passing most elnod cuts! This week's report (email?) [Jon] Recently generated tag browser Mostly looks OK... AI: Jon to study reducplots, present next week next week's czar status of B2 mass re-reduction [ Angiola/Randol ] AIFL: stationarity_ab cut: Angiola/Jamie AI: Walt to check in el nod gap cut AIFL: elnod goodness-of-fit cut: Martin, status? -- remains open outstanding B2 mass reduction actions? 3) Deployment/operations planning: http://bicep.caltech.edu/~spuder/schedule/A-039_FY13_deployment.html updated list emailed around Steff would like to leave around Nov. 20 - November/December measurement plan [ Randol / Colin ] - report on final B2 calibrations most moon and BNS source data are not ideal for beam parameters because of size of signal. need target ADU strength for ideal beam shape meas. - Zak to prepare FTS for Keck, also use for BICEP2 - October testing: thermal studies [ Jon ] - To retro: BICEP2 cryostat other items? talk to John items with JPL stickers that must go back to JPL AI: Randol to look into these 4) Analysis updates: - thermal analysis update? [ Jon ] - UCSD proposes to look at cosmic birefringence w/ B1 and B2 data Threads to initial B2 result: - baseline data reduction - are we satisfied with deglitching / other low-level reduc? Believe so; Clem has asked for additional studies to verify - are cuts doing a sensible job eliminating poorly modeled data? Few outstanding action items; see reduc czar section - deprojection - baseline: relgain + diffpoint deproj (per phase or longer) - using WMAP7 T derived templates - Kendrick derived B spectrum estimators 2012 Sep 10: Rel-gain regression in the presence of template noise (for BICEP1) (RWA) 2012 Sep 10: Deprojection sims 1211-1220 (CDS) - systematic characterization - statistics for reporting limits, r constraints - foregrounds - hope that BICEP1 3-yr results can provide us a model to follow for these points - other B2 analysis threads -------end B2 Team business----------------------

11 years, 7 months

2012-09-18 Weekly Report

by Steffen Richter (BICEP2)

Hi All, Observing: ---------- 120917 07:52:21 - still running * 9_CMB_36d_dk068_015.sch * MCE error @ 120917 15:20:57: /usr/mce/mce_script//script/mce_update_userword: line 27: array_integer + 256 * Reply does not match command. : syntax error: invalid arithmetic operator (error token is ". ") 120917 07:43:45 - 120917 07:45:10 * mce_autotune.sch * MASD restart, DSP driver reload & mce_reset_clean, GCP restart after running schedule. 120917 02:46:53 - 120917 04:14:50 * starpoint_pole_bicep_summer.sch * Tilts: 10.492 az 0° 180° x -8.904 -9.432 y 9.371 120917 02:24:19 - 120917 02:29:55 * do_cycle.sch * dk=0 mark OK * cleaned GS, boot, UFB, LFB, window * Membrane 0.1/0.4 120914 08:14:11 - 120917 02:02:51 * 9_CMB_36c_dk293_015.sch 120914 08:07:53 - 120914 08:09:17 * mce_autotune.sch * MASD restart, DSP driver reload & mce_reset_clean, GCP restart after running schedule. 120914 08:05:10 - 120914 08:05:54 * mce_autotune.sch * Failed 120914 02:37:50 - 120914 02:43:27 * do_cycle.sch * Tilts: az 0° 180° x -8.904 -9.432 y 9.371 10.492 dk=0 mark OK cleaned GS, boot, UFB, LFB, window Membrane 0.12/0.45 120911 08:18:49 - 120914 02:14:39 * 9_CMB_36c_dk248_015.sch Telescope: ---------- - One pointing schedule - One non-fatal MCE errors - Load leveler temperature spiked and exhaust fan came on during 9/14 schedule. We worked for several hours throughout the night to reconfigure things to lower the temperature. Still working on a permanent fix. Weather was pretty bad during all this. Weather -------- - Windy and overcast, followed by some clear days Cryogenics: ----------- * Tracking spreadsheet at http://bicep.rc.fas.harvard.edu/bicep2/south_pole_helium_usage/Summer_2011_… * Kathleen's Cryo Sitrep: LHe: • Approximately 4600 liters of useable LHe remain in the Wessington dewars. • Approximately 500 liters of LHe were delivered to BICEP2. • Based on a historical consumption rate of 35.7 liters/day, LHe supplies are expected to be exhausted by January 2013 GHe: • Out of 16 storage tanks for gaseous helium: 7 tanks are at 17.2 MPa (2500 psi), one tank is at 13.8 MPa (2000 psi), one tank is at 10.3 MPa (1500 psi), one tanks is at 4.8 MPa (700 psi), three tanks are at 1.4 MPa (200 psi), two tanks are at 1.0 MPa (150 psi), and one tank is at 0 MPa (0 psi). • Vent GHe from the LHe transfer was compressed into the storage tanks. LN2: • The liquid nitrogen plant tuned off all week • Approximately 350 liters of LN2 are currently stockpiled on station. Analysis/software/computers: ---------------------------- - Nothing to report Cheers, Steffen

11 years, 7 months

Thermal Stability paper

by Jon Kaufman

My latest draft can be found here<http://bicep.caltech.edu/~spuder/analysis_logbook/analysis/20120716_NTD_map…>. I'm hoping to get better quality thermal filter xfer function data in october so for now the xfer function figure is a place holder. Please send me any comments/questions. -Jon

11 years, 7 months

Reduc czar notes, Sep2 - Sep 11

by Jon Kaufman

Hi All, 20120830I07 through 20120909F06 Very good looking data this week. There are a lot of tags for which the round1/2 cuts weren't made, however. *tags worth noting:* 20120902B04 - one halfscan cut with round1 20120902C07 - entirely cut stationarity_ab 20120902D02 - bad wx not cut 20120902D03 - bad wx not cut 20120902D06 - entirely cut scanset_std, stationarity_ab 20120902F01 - entirely cut stationarity_ab 20120902I07 - yikes! bad channels cut by round2 20120905B07 - bad channel not cut by round2 20120905C03 - lots of spiky behavior cut by round2 20120905C04 - lots of spiky behavior cut by round2 20120905C05 - lots of spiky behavior cut by round2 20120905C06 - entirely cut stationarity_ab 20120905C07 - lots of spiky behavior cut by round2 20120905C10 - lots of spiky behavior cut by round2 20120905E07 - lots of spiky behavior cut by round2 20120905F10 - some structure in leading elnod left in round2 20120908B01 - entirely cut stationarity_ab, stationarity_dif, num_destep 20120908B03 - entirely cut skewness_dif, stationarity_ab, stationarity_dif, num_fj, num_destep 20120908C02 - round1 cut one halfscan 20120908C07 - marginal weather not cut 20120908D05 - marginal weather in leading elnod 20120908F04 - noisy data passes round2 20120908F05 - entirely cut stationarity_ab *reduc problems:* 20120830I07 - missing round2 20120902B05 - missing round2 20120902B06 - missing round2 20120902B07 - missing round2 20120902B08 - missing round2 20120902B09 - missing round1/2 20120902B10 - missing round1/2 20120902C01 - missing round1/2 20120902C02 - missing round1/2 20120902C03 - missing round1/2 20120902C04 - missing round2 20120902C05 - missing round2 20120902C06 - missing round2 20120902C10 - missing round2 20120902D01 - missing round2 20120902D04 - missing round1/2 20120902D05 - missing round1/2 20120902D07 - missing round1/2 20120902E01 - missing round1/2 20120902E03 - missing round1/2 20120902E04 - missing round1/2 20120902E05 - missing round1/2 20120902E08 - missing round1/2 20120902E09 - missing round1/2 20120902G05 - missing round1/2 20120902H03 - missing round1/2 20120902H05 - missing round1/2 20120902H06 - missing round1/2 20120902H09 - missing round1/2 20120902H10 - missing round1/2 20120902I01 - missing round1/2 20120902I06 - missing round2 20120902I10 - missing round1/2 20120905B04 - missing round2 20120905D02 - missing round2 20120905D04 - missing round1/2 20120905D07 - missing round1/2 20120905E01 - missing round2 20120905E03 - missing round1/2 20120905E04 - missing round1/2 20120905E05 - missing round1/2 20120905E06 - missing round2 20120905E08 - missing round1/2 20120905E10 - missing round1/2 20120905F02 - missing round1/2 20120905F03 - missing round1/2 20120905F05 - missing round1/2 20120905F07 - missing round1/2 20120905G01 - missing round1/2 20120905G05 - missing round1/2 20120905G07 - missing round1/2 20120905H01 - missing round1/2 20120905H05 - missing round2 20120905H06 - missing round1/2 20120905H08 - missing round2 20120905H09 - missing round2 20120905I06 - missing round1/2 20120905I10 - missing round1/2 20120908B06 - missing round1/2 20120908B07 - missing round1/2 20120908B09 - missing round1/2 20120908C05 - missing round1/2 20120908C06 - missing round1/2 20120908C09 - missing round2 20120908D04 - missing round1/2 20120908E01 - missing round1/2 On Tue, Sep 11, 2012 at 8:53 AM, Jon Kaufman <jkaufman(a)physics.ucsd.edu>wrote: > Hi All, > > 20120830I07 through 20120909F06 > > The reduc procedure takes significantly longer than it did last time I ran > it so it is still running. I generated the html browser for the tags that > had been processed as of 8 am this morning but it just finished 10 minutes > ago so I haven't gotten a chance to scrutinize all the tags. Generally, > things look good. I will send a more complete list later today. > > From what I saw from a cursory look: > > spikes in data: > > http://bicep.rc.fas.harvard.edu/bicep2/reducplots/browser/?20120905G01_dk06… > > http://bicep.rc.fas.harvard.edu/bicep2/reducplots/browser/?20120908B01_dk11… > (WX?) > > > -Jon > > On Tue, Sep 4, 2012 at 4:10 PM, Randol Aikin <rwa(a)caltech.edu> wrote: > >> Hi All, >> >> Examining 20120818F05-20120830I06. Looks like we're all caught up on the >> SPTR transfer. Weather generally good with a few periods of marginal >> weather. A few scansets to note: >> >> Here are two examples of relatively bad weather (particularly mediocre >> elnods) that are not being cut by round2 cuts: >> >> http://bicep.rc.fas.harvard.edu/bicep2/reducplots/browser/?20120818F09_dk24… >> >> http://bicep.rc.fas.harvard.edu/bicep2/reducplots/browser/?20120818F10_dk24… >> >> Similarly, a very high std set not being cut: >> >> http://bicep.rc.fas.harvard.edu/bicep2/reducplots/browser/?20120827C07_dk11… >> >> There was one extremely bad looking scanset, probably due to snow on the >> window or else some kind of optical interference. >> >> http://bicep.rc.fas.harvard.edu/bicep2/reducplots/browser/?20120830B01_dk24… >> I'm particularly worried that this isn't completely failing elnod cuts. >> >> In the notes below, I note all scansets that are entirely cut and list >> the cut responsible. There are also a large number of scansets missing >> plots for the round 1 and/or 2 cuts. I think we need to modify the driver >> scripts to check for those missing data products. >> >> Randol >> >> >> *Weather/Data Anomolies/Cuts* >> *------------------* >> 20120818F09 - Bad wx - not cut >> 20120818F10 - Bad wx - not cut >> 20120818G02 - Entirely cut - scanset_std >> 20120818G07 - Entirely cut - stationarity_ab >> 20120818H02 - Entirely cut - stationarity_ab >> 20120818I02 - Half of the data cut - stationarity_ab >> 20120818I03 - Entirely cut - stationarity_ab >> 20120821B02 - Entirely cut - stationarity_ab >> 20120821B03 - Entirely cut - stationarity_ab >> 20120821B04 - Entirely cut - stationarity_ab >> 20120821B06 - Entirely cut - stationarity_ab >> 20120821C01 - Entirely cut - stationarity_ab >> 20120821I02 - Step in trailing elnod - not cut >> 20120821I05 - Entirely cut - stationarity_ab >> 20120824B03 - Step in leading elnod - not cut >> 20120824E01 - Entirely cut - stationarity_ab >> 20120824F02 - Entirely cut - scanset_std >> 20120824F03 - Entirely cut - scanset_std >> 20120824F07 - Entirely cut - scanset_std, stationarity_ab, elnod_fracdel >> 20120824F08 - Structure in elnods >> 20120824G02 - Structure in elnods >> 20120827B03 - Entirely cut- stationarity_ab >> 20120827C05 - Entirely cut- scanset_std >> 20120827F01 - Entirely cut- stationarity_ab >> 20120827F08-F10 - 1/f in pair diff not cut >> 20120830B01 - Entirely cut- stationarity_ab - nasty steps in leading elnod >> 20120830B02 - Entirely cut- stationarity_ab >> 20120830H01 - Entirely cut- scanset_std >> 20120830H02 - Entirely cut- scanset_std >> 20120830I05 - Entirely cut- stationarity_ab >> >> *Reduc problems:* >> *------------------* >> 20120818 - Cal incomplete >> 20120821B05 - missing >> 20120821H06 - missing >> 20120821I06 - missing round 2 >> 20120821I07 - missing round 2 >> 20120824B02 - missing round 2 >> 20120824B04 - missing round 2 >> 20120824B05 - missing round 2 >> 20120824C04 - missing round 1/2 >> 20120824C06 - missing round 2 >> 20120824E03 - missing round 2 >> 20120824E07 - missing round 2 >> 20120824E08 - missing round 2 >> 20120824E09 - missing round 2 >> 20120824F09 - missing round 1/2 >> 20120824G01 - missing >> 20120824H02 - missing round 1/2 >> 20120824H04 - missing round 1/2 >> 20120824H07 - missing round 2 >> 20120824H08 - missing round 1/2 >> 20120824I03 - missing round 1/2 >> 20120824I08 - missing round 1/2 >> 20120827D05 - missing round 1/2 >> 20120827E05 - missing round 2 >> 20120827G05 - missing round 2 >> 20120827H03 - missing round 1/2 >> 20120827H10 - missing round 2 >> 20120827I09 - missing round 2 >> 20120830B04 - missing round 1/2 >> 20120830B05 - missing round 1/2 >> 20120830C05 - missing round 1/2 >> 20120830C06 - missing round 1/2 >> 20120830C10 - missing round 1/2 >> 20120830D02 - missing round 1/2 >> 20120830D05 - missing round 1/2 >> 20120830E01 - missing round 1/2 >> 20120830E02 - missing round 1/2 >> 20120830E09 - missing round 1/2 >> 20120830F04 - missing round 2 >> 20120830F05 - missing round 1/2 >> 20120830G06 - missing round 2 >> >> >> >> _______________________________________________ >> Bicep2-list mailing list >> Bicep2-list(a)lists.fas.harvard.edu >> https://lists.fas.harvard.edu/mailman/listinfo/bicep2-list >> >> >

11 years, 7 months

Fwd: Re: Sequence of Pictures of Sunrise.

by Peter Mason

All; Superb pictures taken by Steffan in recent days. Pete -------- Original Message -------- Subject: Re: Sequence of Pictures of Sunrise. Date: Tue, 11 Sep 2012 22:38:30 +1200 From: Steffen Richter (BICEP2) <Steffen.Richter.Guest(a)usap.gov> To: Peter Mason <pmason(a)alumni.caltech.edu> Pete, Here are some recent pix. Cheers, Steffen On 2012-09-10 15:22, Peter Mason wrote: > Robert and Steffen; > > I wish I could be at the Pole for the next few days to watch > the sun slowly peek above the horizon. I have seen pictures taken at > the time that were gorgeous. > > Would either of you be interested in documenting it? I (and > many others, I'm sure) would be greatly pleased to see a sequence of > pictures, one a day at the same time and looking in the same > direction, so we could make a sequence out of it. > > Of course, we'd also like pictures of all the other activity > going on. > > Best > > Peter Mason > > Dr. Peter V. Mason > MS 59-33 > California Institute of Technology > 1201 E. California Bl. > Pasadena, CA 91125 > Ph. 626-395-3341 > Fax 626-584-9929 > Email pmason(a)alumni.caltech.edu

11 years, 7 months

2012-09-11 Weekly Report

by Steffen Richter (BICEP2)

Hi All, Observing: ---------- 120911 08:18:49 - still running * 9_CMB_36c_dk248_015.sch 120911 08:09:28 - 120911 08:10:52 * mce_autotune.sch * MASD restart, DSP driver reload & mce_reset_clean, GCP restart after running schedule. 120911 02:47:26 - 120911 02:53:04 * do_cycle.sch * Tilts: az 0° 180° x -8.904 -9.388 y 9.827 10.305 * dk=0 mark OK * cleaned GS, boot, UFB, LFB * Membran 0.12/0.45 120908 08:27:20 - 120911 02:26:25 * 9_CMB_36c_dk113_015.sch * MCE error @ 20120910 15:48:28: /home/bicep/gcp/control/../masd/specific/scripts/mce_fast_pipe: line 74: 50000000 / Reply does not match command. / 60 : syntax error: invalid arithmetic operator (error token is ". / 60 ") /home/bicep/gcp/control/../masd/specific/scripts/mce_fast_pipe: line 77: / 140 : syntax error: operand expected (error token is "/ 140 ") 120908 08:18:21 - 120908 08:19:46 * mce_autotune.sch * MASD restart, DSP driver reload & mce_reset_clean, GCP restart after running schedule. 120908 03:27:42 - 120908 07:17:58 * starpoint_pole_bicep_winter.sch * Tilts: az 0° 180° x -8.674 -9.728 y 9.602 10.767 120908 03:00:41 - 120908 03:06:18 * do_cycle.sch * dk=0 mark OK * cleaned GS, boot, UFB * Membran 0.10/0.40 120905 08:35:47 - 120908 02:38:13 * 9_CMB_36c_dk068_015.sch 120905 08:31:57 - 120905 08:33:22 * mce_autotune.sch * MASD restart, DSP driver reload & mce_reset_clean, GCP restart after running schedule. 120905 03:04:31 - 120905 03:10:08 * do_cycle.sch * Tilts: az 0° 180° x -8.904 -9.377 y 9.822 10.305 * dk=0 mark OK * cleaned GS, boot, UFB * Membran 0.12/0.43 120902 09:18:34 - 120905 02:50:02 * 9_CMB_36b_dk293_015.sch Telescope: ---------- - One pointing schedule - One non-fatal MCE errors - Load leveler fan came on 3 times during the last schedule. We had a cold spell of <-100F. When that happens, they need to switch to the electric boiler, because the fuel gets to viscous for the pumps to work. The electric boiler does not seem to be very well regulated. When it warms up and we don't switch back to the furnace asap, it will get too hot. Folks here are generally are not really on top of things. I had to raise an alarm for the low temperature when we hit <-100F and again when things got too warm. Good thing I installed all these sensors and tied them into our radio pager :-) We'll go through the same scenario again in the next few days. Let's see if they do any better this time Weather -------- - Few days of cold and clear wx, followed by a warmer period with overcast skies. Cryogenics: ----------- * Tracking spreadsheet at http://bicep.rc.fas.harvard.edu/bicep2/south_pole_helium_usage/Summer_2011_… * Kathleen's Cryo Sitrep: LHe: • Approximately 5000 liters of useable LHe remain in the Wessington dewars. • Approximately 250 liters of LHe were delivered to BICEP2. • Based on a historical consumption rate of 35.7 liters/day, LHe supplies are expected to be exhausted by January 2013 GHe: • Out of 16 storage tanks for gaseous helium: 6 tanks are at 17.2 MPa (2500 psi), two tanks are at 13.8 MPa (2000 psi), one tank is at 10.3 MPa (1500 psi), one tanks is at 5.5 MPa (800 psi), one tank is at 2.0 MPa (300psi), two tanks are at 1.4 MPa (200 psi), two tanks are at 1.0 MPa (150 psi), and one tank is at 0 MPa (0 psi). • Vent GHe from the LHe transfer was compressed into the storage tanks. LN2: • The liquid nitrogen plant tuned on 2 September 2012 and turner off 4 September 2012 • Approximately 400 liters of LN2 are currently stockpiled on station. Analysis/software/computers: ---------------------------- - Nothing to report Cheers, Steffen

11 years, 7 months

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Bicep2-list September 2012