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 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.13 - 18 Apr 2008 - RandyMcCullough)
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There were no significant events to report the past two weeks.

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GUPPi... Thanks to much help from a long list of characters including: Scott Ransom, Paul Demorest, Ron DuPlain?, Glen Langston, John Ford, Randy McCullough?, Jason Ray, and Patrick Brandt we were able to achieve "First Light" with GUPPi at around 4:30 AM Thursday morning (17-APR-08) while observing PSR_1824-2452A. We've come a long way; but we still have a long road ahead in turning GUPPi into a common user instrument. Our next goal is to explore and implement coherent de-dispersion and period folding by late this summer. Following this, we intend to enlist the help of the Software Division to turn GUPPi into its final Common User form (with a schedule subject to personnel availability).


 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.12 - 18 Apr 2008 - DennisEgan)
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 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.11 - 18 Apr 2008 - GlenLangston)
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  • MIT/LL feed removed and sent to the shop; Thanks Preston, Mechanics, Pete and Shop
  • Progress is good on MIT/LL refrigerator and door work. Thanks to Bob and Kenny
  • Feed mounted on test range and pattern work is going well. Thanks Gary, Jonah, Steve
  • MIT/LL will run calibration tests in 43m Control room Friday, Saturday
  • Plan is to install feed on Monday Morning
  • Test pointing and tracking the remainder of the week
  • Rohit and Rich B. are designing a test of their feed on the 43m. Thanks to Dennis and shop for help

 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.10 - 18 Apr 2008 - AmyShelton)
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 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.9 - 18 Apr 2008 - BobAnderson)
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Nothing extraordinary this week.


 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.8 - 18 Apr 2008 - RonMaddalena)
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Over the last two weeks we supported 29 projects in 57 observing sessions, including 7 VLB runs. The telescope was also scheduled ofr 3 hrs of receiver checkouts, 18 hrs of PTCS tests, and 18 hrs of maintenance. Lost time was moderate (13.5 hrs or 4.2%) and were due to a very diverse set of issues.

  • Winds (4 instances) - 3.1 hrs
  • Observer script errors (5 instances) - 2.5 hrs
  • CGSR problems - 2.5 hrs
  • HVAC Control Room (3 instances) - 1.4 hrs
  • HVAC Receiver Room - 0.9 hrs
  • Ka-band MCB/Local switch in wrong position - 0.9 hrs
  • Observer No-show - 0.7 hrs
  • VLBI Mark 5 reboot - 0.4 hrs
  • Astrid (3 instances) - 0.4 hrs
  • Auto Peak (2 instances) - 0.2 hrs
  • Az Transducer - 0.2 hrs
  • Spectrometer (2 instances) - 0.2 hrs
  • Others (Operator errors, Spectral processor) - 0.2 hrs

In all, 31 problems reported. We've been discussing the cause of many of the observing script errors. It's not clear from the operator logs whether the CGSR problems actually stopped the observations or whether the observers where using a second backend at the time. It's odd that we add two sets of unrelated HVAC problems since we usually don't have any. The Ka-band problem was probably due to someone accidentally hitting the local control switch on the receiver box when Ku was being installed. The rate at which observers do not show up remains about 1 incident per month. When observing near the zenith, AutoPeak? is not cognizant that a source may be 180 deg away in Azimuth.

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No news.


 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.7 - 17 Apr 2008 - StevenWhite)
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  • PF1 installed on Thursday
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  • From the teleconference this week a target date of August 1 is set for earliest single pixel telescope commissioning.
  • All EM parts nearly ready for testing.
  • Progress on single pixel dewar construction continues.
  • S shaped output waveguide constructed and tested.

 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.6 - 17 Apr 2008 - MartyBloss)
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  • Sequencing of remaining MUSTANG development tasks
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PTCS program -- John

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PTCS program -- Marty (Todd)

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    • Servo replacement spec review completed
    • Preliminary servo replacement architecture under development
    • Proof-of-concept for MATLAB to C++ code conversion
    • Servo test bed stages defined

 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.5 - 17 Apr 2008 - ToddHunter)
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  • Servo
  • Pointing
    • Standard azimuth track map obtained on Tuesday morning. Results are reasonably consistent with prior runs. Further analysis of nearly-contemporaneous stationary inclinometer readings is underway in order to explore the remaining discrepancies in tilt-related pointing terms.
  • OOF Holography
    • New version of source code (including Mustang processing) received from Bojan. Compilation underway.
  • Traditional holography and surface
    • Holography system being readied for lab tests next week.
    • Project Note 61 released on the wiki, describing measurements of the resilience of panel setting obtained in 2006.

 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.4 - 17 Apr 2008 - CarlBignell)
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  • GBT 08B Proposals Approved (excludes HSA, VLBI)
    • Total Group A hours: 882 (#29)
    • Total Group B hours: 193 (#5)
    • Total High Freq (>=C) hours: 372
    • Total Low Freq hours: 702

 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.3 - 17 Apr 2008 - GalenWatts)
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  • The Zpectrometer was removed from the telescope on April 2.

 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.2 - 17 Apr 2008 - CarlBignell)
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Activities List

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Activities List

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Last 2 Weeks =========

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Observations for proposals GBT08A-075, BB240 , GBT08A-020, GBT08A-021, GBT07C-084, GBT08A-054, GBT08A-043, GBT08A-033, GBT07C-030, GBT08A-077, GBT08A-011, GBT07C-086, GBT07A-066, GBT08A-068, GBT08A-057, GBT08A-069, GBT08A-014, GBT07C-066, GBT07B-034, GBT08A-047, GBT07B-025, BM267 , GBT08A-039, GBT05A-029, GBT08A-082, GBT08A-072, GBT08A-083, BB242 , GBT08A-040, GBT07A-051

Completed proposals GBT08A-057, GBT08A-072, GBT08A-083

Next Week ===== Observations scheduled for ** BB240 [ P ] Geoff Bower RIPL: Radio Interferometric PLanet Search GBT08A-020 [F ] Jason Hessels Completing the GBT350 Pulsar and Transient Survey of the North Galactic Plane GBT08A-075 [F B] Jim Higdon Mapping a 500 kpc HI Plume in the Virgo Cluster with the GBT GBT08A-033 [ B] Mike Blanton Testing the cold dark matter mass function with dwarf disk galaxies GBT08A-077 [F B] Fernando Camilo Studying the magnetar XTE J1810-197 GBT07A-087 [F B] Paul Demorest Detecting nHz Gravitational Radiation using a Pulsar Timing Array GBT07C-086 [ P ] Pat Thaddeus A Survey of C6H- and C6H in Carbon Chain Sources in the Galaxy GBT07A-066 [ P ] Jim Braatz The Megamaser Cosmology Project BL156 [F ] Laurent Loinard Completing the VLBA mapping of nearby star­forming regions GBT07C-066 [ B] Jack Hewitt The Origins of Thermal Emission from Interacting Supernova Remnant G359.1-0.5 GBT08A-047 [ B] Chris Carilli First limits to the IGM during cosmic reionization using the H 2p-2s transition GBT08A-037 [F ] Stanislav Edel Radio monitoring of magnetars GBT07C-057 [ P ] Jeremy Darling A Critical Density for OH Megamasers? Formaldehyde Holds the Key GBT08A-027 [ P ] Jeremy Lim Cool Molecular Gas in Dust-Luminous Ly-alpha Blobs at High Redshifts GBT07B-025 [ B] Scott Ransom Continued Timing of the Millisecond Pulsars in M28, NGC6440 and NGC6441 GBT07C-049 [ P ] Jaime Pineda The COMPLETE GBT Ammonia Mapping of Perseus GBT07B-029 [ B] Michael Kramer Timing and General Relativity in the Double Pulsar System GBT08A-081 [ B] Kevin Bandura HI Brightness Mapping of DEEP2 Fields GBT05A-029 [ P ] Paul VandenBout? Search for Cold Molecular Gas at High Redshift GBT05C-027 [ P ] Jeff Mangum An Exact Identification of High Densities in Molecular Clouds GBT08A-040 [ P ] Pat Thaddeus A Search for the Negative Molecular Ions C4H-, C3N-, and CH2CN- BB242 [ P ] Jim Braatz The Megamaser Cosmology Project GBT07C-060 [F B] Fernando Camilo GLAST timing at GBT: six key radio-faint pulsars ** Scheduled as F-ixed, P-rimary, B-ackup

Contact Information for 05/01/2008 - 05/15/2008 =================================== Proposal PI Bands Email [NRAO contact]


------------------ ----- -------------------- GBT08A-020 Jason Hessels 8 jhessels@science.uva.nl [Scott Ransom] BB240 Geoff Bower X gbower@astro.berkeley.edu [] GBT07C-084 Laura Kasian LS kasian@physics.ubc.ca [Scott Ransom] GBT08A-043 Jeremy Darling 8 jdarling@origins.colorado.edu [Toney Minter] GBT08A-054 Esteban Araya CUK earaya@nrao.edu [D.J. Pisano] GBT08A-076 Nissim Kanekar 4 nkanekar@nrao.edu [Paul Ruffle] GBT08A-021 Jeff Mangum U jmangum@nrao.edu [Paul Ruffle] GBT07A-087 Paul Demorest S pdemores@nrao.edu [Scott Ransom] GBT07C-030 Joel Bregman K jbregman@umich.edu [D.J. Pisano] GBT07B-020 Ingrid Stairs L stairs@astro.ubc.ca [Scott Ransom] GBT08A-011 Maura McLaughlin? 38 maura.mclaughlin@mail.wvu.edu [Scott Ransom] GBT08A-033 Mike Blanton L blanton@nyu.edu [Jules Harnett] GBT08A-077 Fernando Camilo S fernando@astro.columbia.edu [Scott Ransom] GBT07B-031 Steven Majewski K srm4n@virginia.edu [Larry Morgan] GBT07A-066 Jim Braatz K jbraatz@nrao.edu [Jim Braatz] GBT06A-033 Howard Bond Q bond@stsci.edu [Ron Maddalena] GBT08A-002 Bruce Campbell S4 campbellb@si.edu [Frank Ghigo] GBT07B-034 Robert Ferdman L ferdman@phas.ubc.ca [Scott Ransom] GBT08A-014 Jay Lockman L jlockman@nrao.edu [Jay Lockman] GBT08A-047 Chris Carilli L ccarilli@nrao.edu [Toney Minter] GBT08A-015 Mallory Roberts XSC malloryr@gmail.com [Scott Ransom] GBT08A-048 Esteban Araya CUK earaya@nrao.edu [D.J. Pisano] GBT07C-014 Keivan Stassun K keivan.stassun@vanderbilt.edu [Larry Morgan] GBT08A-017 Pieter Buyle K pieter.buyle@ugent.be [Paul Ruffle] GBT08A-039 Dana Balser C dbalser@nrao.edu [Dana Balser] GBT06C-013 Steve Curran 4 sjc@phys.unsw.edu.au [Carl Bignell] GBT07C-005 Jeff Mangum C jmangum@nrao.edu [Ron Maddalena] GBT07B-029 Michael Kramer 8 mkramer@jb.man.ac.uk [Scott Ransom] BW089 Joan Wrobel L jwrobel@nrao.edu [] GBT05A-029 Paul VandenBout? B pvandenb@nrao.edu [] GBT08A-081 Kevin Bandura 8 kbandura@andrew.cmu.edu [Paul Ruffle] BB255 Andreas Brunthaler K brunthaler@mpifr-bonn.mpg.de [] GBT08A-072 Helene Courtois L h.courtois@ipnl.in2p3.fr [Rick Fisher] GBT08A-073 Viswesh Marthi 8 vrmarthi@ncra.tifr.res.in [Paul Ruffle] GBT08A-040 Pat Thaddeus K pthaddeus@cfa.harvard.edu [Larry Morgan] GBT07C-060 Fernando Camilo S fernando@astro.columbia.edu [Scott Ransom] GBT07A-051 Mike Hollis 3468A jan.m.hollis@nasa.gov [Larry Morgan]

Scheduled hours [backup] ==================== Category/Month-> April May Astronomy ~ 638 [220] 550 [359] Maintenance ~ 51 [017] 42 [051] Test & Comm ~ 31 43 [034] Un-assigned ~ 1 110

Proposal Checkouts #[hrs]* ===================== Awaiting checkout - 0[0] Active checkout - 0[0] On Hold - 0[0] Schedule - 114[2335] Completed - 537[6539] * All but completed queue applies to GBT only proposals

Current backlog of Reg & RRS proposals [hours prior to 08A*] = 1126 [2005:58(5), 2006:194(10), 2007:874(43)] Backlog includes 73 hrs of monitoring projects 262 hrs of vlbi projects Total time to discharge [hours] = 5120 Includes 236 hours++ of monitoring (not Large or Spec) after trimester 08A

        1. hours of Regular & RRS proposals
        2. hours of Large proposals
        3. hours of VLBI proposals
* Includes projects that are on hold for trimester 08A ++ Time is counted in other break down as well. 08A

 <<O>>  Difference Topic CommissioningMeeting08Apr18 (r1.1 - 17 Apr 2008 - RonMaddalena)
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%META:TOPICINFO{author="RonMaddalena" date="1208443199" format="1.0" version="1.1"}%

GBT Operations & Commissioning Meeting

18 April 2008

GB137 and by video-con from CV-Conf

AGENDA


Upcoming Activities -- Carl

Activities List


Operations


Scheduling Status -- Carl



Observing News -- Ron


Commissioning Plans -- Ron


GBT Telescope Operations -- Bob


Mechanical Division Operations -- Dennis


Microwave Electronics Operations -- Steve


Digital Electronics Operations -- Randy


RFI Group Operations -- Carla


Software Operations -- Amy


Computing and Network Operations -- Chris


Business Services -- Mike


43m Operations -- Glen


Project and Development Work


Dynamic Scheduling -- Karen


MUSTANG -- Brian


PTCS program -- John


CICADA program -- John


Ka-band Rx / Zpectrometer -- Galen


K-band Focal Plane Array -- Steve


Other Project Notes


Upcoming Meetings


Any other Business

-- RonMaddalena - 17 Apr 2008


Topic CommissioningMeeting08Apr18 . { View | Diffs | r1.13 | > | r1.12 | > | r1.11 | More }
Revision r1.1 - 17 Apr 2008 - 14:39 GMT - RonMaddalena
Revision r1.13 - 18 Apr 2008 - 13:25 GMT - RandyMcCullough
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