GBT Operations & Commissioning Meeting
AGENDA
Activities List
Last 2 Weeks
=============
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
2541 hours of Regular & RRS proposals
2231 hours of Large proposals
348 hours of VLBI proposals
* Includes projects that are on hold for trimester 08A
++ Time is counted in other break down as well. 08A
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.
No news.
GBT Telescope Operations -- Bob
Nothing extraordinary this week.
- PF1 installed on Thursday
There were no significant events to report the past two weeks.
RFI Group Operations -- Carla
- 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
MUSTANG -- Brian
- Sequencing of remaining MUSTANG development tasks
PTCS program -- Marty (Todd)
- Servo
- 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
- 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.
CICADA program -- John
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).
- The Zpectrometer was removed from the telescope on April 2.
- 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.
- 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
-- RonMaddalena - 17 Apr 2008
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Revision r1.13 - 18 Apr 2008 - 13:25 GMT - RandyMcCullough
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