• Sept 28 (originally Sept 14, four weeks after the end of track shutdown) : End of PTCS recommissioning of track

• Sept 28 (originally Sept 14, four weeks after the end of track shutdown) : End of PTCS recommissioning of track

• Week of Sept 24 or Oct 1: Install Zpec. Contingent on Aug 13 decision.

• Week of Sept 24 or Oct 1: Install Zpec. Contingent on Aug 13 decision.

• Sept 23 - Sept 30 : SDD software tests for Oct 3 release
• Week of Sept 24, Oct 1, and Oct 8: Ka-band/Spectrometer recommissioning. Contingent on Aug 10 decision. One 8 hr sessions per week of A-class weather (nighttime, dynamically scheduled).

• Sept 23 - Sept 30 : SDD software tests for Oct 3 release
• Week of Sept 24 (), Oct 1 (), and Oct 8: Ka-band/Spectrometer recommissioning. Contingent on Aug 10 decision. One 8 hr sessions per week of A-class weather (nighttime, dynamically scheduled).

• Aug 31 - Sept 15 (originally Aug 17 - Aug 30, the end of shutdown to 2 weeks later) : Contingency test time for any remaining S-, X-, and Q-band receiver checkouts. One nighttime 4 hr sessions per week. Dynamically scheduled.

• Aug 31 - Sept 15 (originally Aug 17 - Aug 30, the end of shutdown to 2 weeks later) : Contingency test time for any remaining S-, X-, and Q-band receiver checkouts. (K-band was added after these plans were formed.) One nighttime 4 hr sessions per week. Dynamically scheduled.

• Week of Sept 17 or Sept 24 : Install Ka-band. Contingent on Aug 10 decision.
• Before Sept 24 : Ku-band removed to make room for Zpec. No need to cool Ku until it is reinstalled (Nov?). Contingent on Aug 10 decision.

• Week of Sept 17 or Sept 24 : Install Ka-band. Contingent on Aug 10 decision.
• Before Sept 24 : Ku-band removed to make room for Zpec. No need to cool Ku until it is reinstalled (Nov?). Contingent on Aug 10 decision.

• No later than the week of Sept 24 : Q-band reinstalled and receiver checkout (8 hrs)

• No later than the week of Sept 24 : Q-band reinstalled () and receiver checkout (8 hrs)

• (New Item) Aug 27 Remove Q-band from telescope to investigate high Tsys in one channel.

• Aug 31 (originally Aug 17, the end of track shutdown) : start of PTCS recommissioning of the track
• No later than Sept. 3 : K-band pumped and cooled
• No later than Sept. 10 but no sooner than 1 week after K-band is cold: K-band receiver checkout. Dynamically scheduled.
• No later than Sept 7 : Mustang removed
• Sept 14 : End of PTCS recommissioning of track

• Aug 31 (originally Aug 17, the end of track shutdown) : start of PTCS recommissioning of the track
• No later than Sept. 3 : K-band pumped and cooled
• No later than Sept. 10 but no sooner than 1 week after K-band is cold: K-band receiver checkout. Dynamically scheduled.
• No later than Sept 7 : Mustang removed
• Sept 28 (originally Sept 14, four weeks after the end of track shutdown) : End of PTCS recommissioning of track

• Week of Sept 24 : Q-band project checkout (8 hrs)

• No later than the week of Sept 24 : Q-band reinstalled and receiver checkout (8 hrs)

• ()July 17 through Aug 1 : L-Band refrigerator work. Must be completed for Governor's school
• Aug 1 through Aug 31 (originally Aug 17, the end of track shutdown) : Reinstall Q-band; pump and cool.
• () Aug 6 : Install Mustang
• Aug 6 through no later than Sept 7 : Mustang tests
• By Aug 13 (Originally Aug 10) : Decision as to whether we will use this fall the one polarization configuration of Ka-band.
• () By Aug 10 (1 week before end of track shutdown) : Install S-band and X-band. The receivers will already be cold when they are installed. Due date is set by the end of the track repairs and so may slip forward or backward. Installing by Aug 10 is preferable since that will give us time for receiver checkouts during the track shutdown.
• By Aug 31 (originally Aug 17, the end of track shutdown) : receiver checkouts for () S-, () X-, and Q-band. Includes pulsar checks of new S-band filters. Two nighttime 4 hr sessions per week, the LST is to be determined.

• July 17 through Aug 1 : L-Band refrigerator work. Must be completed for Governor's school
• Aug 1 through Aug 31 (originally Aug 17, the end of track shutdown) : Reinstall Q-band; pump and cool.
• Aug 6 : Install Mustang
• Aug 6 through no later than Sept 7 : Mustang tests
• By Aug 13 (Originally Aug 10) : Decision as to whether we will use this fall the one polarization configuration of Ka-band.
• By Aug 10 (1 week before end of track shutdown) : Install S-band and X-band. The receivers will already be cold when they are installed. Due date is set by the end of the track repairs and so may slip forward or backward. Installing by Aug 10 is preferable since that will give us time for receiver checkouts during the track shutdown.
• By Aug 31 (originally Aug 17, the end of track shutdown) : receiver checkouts for S-, X-, and Q-band. Includes pulsar checks of new S-band filters. Two nighttime 4 hr sessions per week, the LST is to be determined.

• Aug 17 (originally Aug 17, the end of track shutdown) : start of PTCS recommissioning of the track

• Aug 31 (originally Aug 17, the end of track shutdown) : start of PTCS recommissioning of the track

• July 17 through Aug 1 : L-Band refrigerator work. Must be completed for Governor's school
• Aug 1 through Aug 17 (end of track shutdown) : Reinstall Q-band; pump and cool.
• Aug 6 : Install Mustang

• ()July 17 through Aug 1 : L-Band refrigerator work. Must be completed for Governor's school
• Aug 1 through Aug 31 (originally Aug 17, the end of track shutdown) : Reinstall Q-band; pump and cool.
• () Aug 6 : Install Mustang

• By Aug 10 : Decision as to whether we will use this fall the one polarization configuration of Ka-band.
• By Aug 10 (1 week before end of track shutdown) : Install S-band and X-band. The receivers will already be cold when they are installed. Due date is set by the end of the track repairs and so may slip forward or backward. Installing by Aug 10 is preferable since that will give us time for receiver checkouts during the track shutdown.
• By Aug 17 (end of track shutdown) : receiver checkouts for S- , X- , and Q-band. Includes pulsar checks of new S-band filters. Two nighttime 4 hr sessions per week, the LST is to be determined.
• Aug 17 - Sept 1 (end of shutdown to 2 weeks later) : Contingency test time for any remaining S-, X-, and Q-band receiver checkouts. One nighttime 4 hr sessions per week. Dynamically scheduled.
• Aug 17 (end of track shutdown) : start of PTCS recommissioning of the track

• By Aug 13 (Originally Aug 10) : Decision as to whether we will use this fall the one polarization configuration of Ka-band.
• () By Aug 10 (1 week before end of track shutdown) : Install S-band and X-band. The receivers will already be cold when they are installed. Due date is set by the end of the track repairs and so may slip forward or backward. Installing by Aug 10 is preferable since that will give us time for receiver checkouts during the track shutdown.
• By Aug 31 (originally Aug 17, the end of track shutdown) : receiver checkouts for () S-, () X-, and Q-band. Includes pulsar checks of new S-band filters. Two nighttime 4 hr sessions per week, the LST is to be determined.
• Aug 31 - Sept 15 (originally Aug 17 - Aug 30, the end of shutdown to 2 weeks later) : Contingency test time for any remaining S-, X-, and Q-band receiver checkouts. One nighttime 4 hr sessions per week. Dynamically scheduled.
• Aug 17 (originally Aug 17, the end of track shutdown) : start of PTCS recommissioning of the track

• Week of Sept 24 or Oct 1: Install Zpec. Contingent on Aug 10 decision.

• Week of Sept 24 or Oct 1: Install Zpec. Contingent on Aug 13 decision.

• July 17 through Aug 1 : L-Band refrigerator work. Must be completed for Governor's school

• July 17 through Aug 1 : L-Band refrigerator work. Must be completed for Governor's school

• By Aug 10 (1 week before end of track shutdown) : Install S-band and X-band. The receivers will already be cold when they are installed. Due date is set by the end of the track repairs and so may slip forward or backward. Installing by Aug 10 is preferable since that will give us time for receiver checkouts during the track shutdown.
• By Aug 17 (end of track shutdown) : receiver checkouts for S-, X-, and Q-band. Includes pulsar checks of new S-band filters. Two nighttime 4 hr sessions per week, the LST is to be determined.

• By Aug 10 (1 week before end of track shutdown) : Install S-band and X-band. The receivers will already be cold when they are installed. Due date is set by the end of the track repairs and so may slip forward or backward. Installing by Aug 10 is preferable since that will give us time for receiver checkouts during the track shutdown.
• By Aug 17 (end of track shutdown) : receiver checkouts for S- , X- , and Q-band. Includes pulsar checks of new S-band filters. Two nighttime 4 hr sessions per week, the LST is to be determined.

• Week of Sept 10 : Install C-band (same location where Mustang was mounted).

• Sept 17-30 : C-band astronomical commissioning, C-class weather (need to check this with Dana)

• Week of Sept 10 -- Install C-band.

The following time-line is a master summary of the all the tasks listed below. It folds in our discussion on July 17 concerning the various interactions and dependencies of the various projects. The time-line also includes targets that we discussed on July 17 but that are missing in the discussion below.

This plan assumes that the Ka/Zpec tests in the 1st week of August are successful and that the track shutdown finishes on Aug 17. Within the next two weeks, I will add the contingency plan if the test prove unsuccessful.

Please don't edit the following time-line since it reflects a fair number of inter-dependencies. If you see something that needs to be changed or added, please send an email with your changes to Ron Maddalena.

• July 17 through Aug 1 : L-Band refrigerator work. Must be completed for Governor's school
• Aug 1 through Aug 17 (end of track shutdown) : Reinstall Q-band; pump and cool.
• Aug 6 : Install Mustang
• Aug 6 through no later than Sept 7 : Mustang tests
• By Aug 10 : Decision as to whether we will use this fall the one polarization configuration of Ka-band.
• By Aug 10 (1 week before end of track shutdown) : Install S-band and X-band. The receivers will already be cold when they are installed. Due date is set by the end of the track repairs and so may slip forward or backward. Installing by Aug 10 is preferable since that will give us time for receiver checkouts during the track shutdown.
• By Aug 17 (end of track shutdown) : receiver checkouts for S-, X-, and Q-band. Includes pulsar checks of new S-band filters. Two nighttime 4 hr sessions per week, the LST is to be determined.
• Aug 17 - Sept 1 (end of shutdown to 2 weeks later) : Contingency test time for any remaining S-, X-, and Q-band receiver checkouts. One nighttime 4 hr sessions per week. Dynamically scheduled.
• Aug 17 (end of track shutdown) : start of PTCS recommissioning of the track
• No later than Sept. 3 : K-band pumped and cooled
• No later than Sept. 10 but no sooner than 1 week after K-band is cold: K-band receiver checkout. Dynamically scheduled.
• No later than Sept 7 : Mustang removed
• Week of Sept 10 : Install C-band (same location where Mustang was mounted).
• Sept 14 : End of PTCS recommissioning of track
• Week of Sept 17 or Sept 24 : Install Ka-band. Contingent on Aug 10 decision.
• Sept 17-30 : C-band astronomical commissioning, C-class weather (need to check this with Dana)
• Before Sept 24 : Ku-band removed to make room for Zpec. No need to cool Ku until it is reinstalled (Nov?). Contingent on Aug 10 decision.
• Week of Sept 24 or Oct 1: Install Zpec. Contingent on Aug 10 decision.
• Week of Sept 24 : Q-band project checkout (8 hrs)
• Sept 23 - Sept 30 : SDD software tests for Oct 3 release
• Week of Sept 24, Oct 1, and Oct 8: Ka-band/Spectrometer recommissioning. Contingent on Aug 10 decision. One 8 hr sessions per week of A-class weather (nighttime, dynamically scheduled).

• Week of Sept 10 -- Install C-band.

• Week of Sept 17-21 -- Ka RX Installation on a full Maintenance day.
• Week of Sept 24-28 -- Ka RX Installation Back up, on a full Maintenance day.
• Week of Sept 24-28 -- Zpectrometer Installation on a full Maintenance day.

• Mon August 6 -- install MUSTANG on GBT. We need 8h of access this day, and two days of at least 4h access later in the week.
• Fri August 17 -- nominal date to remove MUSTANG. 8h access needed. We'd like to have the option to stay on a week further, however, should more extensive tests be necessary
• Fri August 24 -- backup date to remove MUSTANG. 8h access

• MUSTANG fit check -- (8h/day, 3 days/wk access) tentatively in the Aug 1 - Aug 14 timeframe.

• MUSTANG fit check -- (16h/wk access needed) tentatively in the Aug 6-19 timeframe, possibly running to the end of the next week.

• 24 April: Proposal Selection Committee meets ( note change)

• 24 April: Proposal Selection Committee meets ( note change) ()

• • Notes: The commissioning time could be used for calibration tests, pointing, etc. The theory is that if the four hours of regression tests went horribly wrong, we'd revert to the current M&C version, the commissioning tests would then use the old version, and we could re-schedule. If the four hours of regression testing went well, the next eight hours would be a "sympathetic" observer using the new version, and a chance to catch/fix trivial problems. We'd revert to the current M&C version at the end of the commissioning tests.

• • Notes: The commissioning time could be used for calibration tests, pointing, etc. The theory is that if the six hours of regression tests went horribly wrong, we'd revert to the current M&C version, the commissioning tests would then use the old version, and we could re-schedule. If the six hours of regression testing went well, the next eight hours would be a "sympathetic" observer using the new version, and a chance to catch/fix trivial problems. We'd revert to the current M&C version at the end of the commissioning tests.

• One block of 6 hours for regression tests (full system and antenna) followed by around 8 hours of commissioning time.

• One block of 6 hours for regression tests (full system and antenna) followed by around 8 hours of commissioning time. Preferably during a weekday.

• ?

• MUSTANG fit check -- (8h/day, 3 days/wk access) tentatively in the Aug 1 - Aug 14 timeframe.
• MUSTANG sky check -- if we can get a shift or two of nighttime full motion that would be great, but not mandatory for our purposes

• • • priority of paired day possibilities: Tue/Thu, Wed/Fri, Mon/wed (confirm)
  • Every Friday morning 08:00-12:00 fixed or dynamically scheduled

• • • scheduled on alternating weeks
    • priority of paired day possibilities: Tue/Thu, Wed/Fri, Mon/wed
  • Two maintenance days (08:00-16:30) per week dynamically scheduled (Tue/Thu)
    • scheduled on alternating weeks
    • priority of paired day possibilities: Mon/wed, Tue/Thu

-- AmyShelton - 05 Mar 2007

Only assign integration and regression testing outside of maintenance hours during the track shutdown if telescope motion is allowed. Otherwise, we will do our integration and regression testing during maintenance days.

-- AmyShelton - 11 May 2007

• 4 May: Proposal dispositions emailed
• 1 May: Draft call for proposals
• 7 May: Call for proposals released
• 15 May: Start constructing June through September astronomical schedule

• 4 May: Proposal dispositions emailed ( 4/25/7)
• 1 May: Draft call for proposals ()
• 7 May: Call for proposals released ( 5/8/7)
• 15 May: Start constructing June through September astronomical schedule ()

• 5 March: Test (hardware, software, etc) and Commissioning trimester time estimates due
• 12 March: Proposal reviews (scientific and technical) deadline
• 3 April: Proposal Selection Committee meets
• 20 April: Proposal dispositions emailed

• 5 March: Test (hardware, software, etc) and Commissioning trimester time estimates due ()
• 12 March: Proposal reviews (scientific and technical) deadline ()
• 24 April: Proposal Selection Committee meets ( note change)
• 4 May: Proposal dispositions emailed

• 15 April: Start constructing (May)June through Sep astronomical schedule
• 30 April: September schedule finalized

• 15 May: Start constructing June through September astronomical schedule
• 30 May: September schedule finalized (n/a - ?)

• We will schedule our release for a scheduled maintenance day. No additional time required. Ideally, it would be good to have a "sympathetic" observer scheduled to use the system directly after maintenance that day.

• We will schedule our release for a scheduled maintenance day. No additional time required. Ideally, it would be good to have a "sympathetic" observer scheduled to use the system directly after maintenance that day. If we have a dedicated release time rather than releasing during maintenance, we only need 2 hours.

-- AmyShelton - 02 Nov 2006

-- AmyShelton - 05 Mar 2007

Planning cycles for 07A include:

Planning cycles for 07B include:

• PF1 - Two weeks in the lab May 07.
• C band
  • Assuming the Penn Array is on the GBT starting about Sept 1, we would like to do the C-band upgrade in two phases: Phase 1 consists of the refrigerator upgrade and would be accomplished Sept 1 - Oct 15. RCO on the GBT after Oct 15 (or when the Penn Array comes off). RCO should be straightforward (2-3 hrs) since none of the electronics components change, only some cabling. The receiver could then be available for astronomy during November and December, including the global VLBI run in November. (Note: Phase 1 began about Sept 1, and the refrigerator upgrade has been accomplished. The receiver will be installed the week of November 13 - the Penn Array time was extended until that week. RDN 13Nov06)

• • Phase 2 consists of the replacement of the room-temperature RF electronics with an integrated package designed by Mike Stennes. We could begin that on Jan 2, and would like 5 weeks in the lab for installation and thorough testing, including with the Lab Spectrometer - so RCO would fall in 07A. Note that there might be some minor receiver manager (a few digital control bits) and Cleo changes needed during this phase - the details are not yet defined. (Note: The Penn Array will not be reinstalled in January 07, and perhaps not until the fall of 07. Hence, phase 2 will likely be pushed back until the 07 summer shutdown or later. RDN 13NOV06)

• PF1 - Two weeks in the lab in fall.

• February 1 - April 30

• Sep 1 - 30

• April 30 - July 31 (inclusive)
  • No antenna movement - see schedule
• August 1 - 31
  • Antenna recalibration
  • limited observing (?)

• Twelve hours are requested for collecting gain calibration data once per month
  • Every other month, a contiguous 12-hour session LST 0500 to 1500, in good weather.
  • In alternate months, the 12 hours can be in 4-hour segments scheduled as convenient.

The good weather sessions will be for determining gain curves, the other sessions for SCALs

?

Total 07A requirements: 64 hours.

Total 07B requirements: 16 hours.

• PF1 - Two weeks in the lab Jan or Feb 07.

• PF1 - Two weeks in the lab May 07.

• 10 February: Proposals distributed to scientific and technical referees

• 10 February: Proposals distributed to scientific and technical referees ()

• 3 April: Proposal Selection COmmittee meets

• 3 April: Proposal Selection Committee meets

• 16 March: Proposal reviews (scientific and technical) deadline

• 12 March: Proposal reviews (scientific and technical) deadline

• 1 February: Call for Proposal Deadline

• 1 February: Call for Proposal Deadline ( 2/1/7)

• 15 April: Start constructing February through April schedule

• 15 April: Start constructing (May)June through Sep astronomical schedule

%META:TOPICINFO{author="CarlBignell" date="1169035860" format="1.0" version="1.1"}% %META:TOPICPARENT{name="WebHome"}%

GBT Test/Maintenance Requirements for Trimester 07B

(June 1, 2007 - September 30, 2007)

• Deadlines:
• Commissioning Summary & Milestones: June 1 - September 30
• Receiver Installation Schedules: June 1 - September 30
• Test / Maintenance Time Requests

Deadlines:

• 1 February: Call for Proposal Deadline
• 10 February: Proposals distributed to scientific and technical referees
• 5 March: Test (hardware, software, etc) and Commissioning trimester time estimates due
• 16 March: Proposal reviews (scientific and technical) deadline
• 3 April: Proposal Selection COmmittee meets
• 20 April: Proposal dispositions emailed
• 1 May: Draft call for proposals
• 7 May: Call for proposals released
• 15 April: Start constructing February through April schedule
• 30 April: September schedule finalized

Commissioning Summary & Milestones: June 1 - September 30

Receiver Installation Schedules: June 1 - September 30

Test / Maintenance Time Requests

-- CarlBignell - 17 Jan 2007