Nobeyama 45m telescope Summary of the last season & Plan for the next season

Transcription

1 Nobeyama 45m telescope Summary of the last season & Plan for the next season

2 45m Organization and member Director Kuno Science manager Takano Instrument manager Kanzawa Mitaka Umemoto Mikoshiba Open use secretary Hatakeyama & Ide Computing group Takahashi Maekawa Miyazawa, K. Oya Tatamidani Kinugasa Nishitani Receiver, IF group Iwashita Miyazawa, C. Ishikawa Saitoh Morokuma Minamidani Antenna, PANDA, AOS group Kanzawa Handa Wada (Morokuma)

3 Summary of the last season (Dec June 2013) Start up measurements, adjustment, & internal use: November 5, 2012 TZ1 released to the open use T100 decommissioned T70 FOREST mounted (1st): December 5, st open use: January 7, 2013 June 8 Z45 mounted: March 26, 2013 End of the operation: June 11, 2013 Start of the maintenance: Computer replace: until July 31, 2013

4 Number of proposals Category Submitted Accepted General: 1st period (3 from abroad) General: 2nd period (4 from abroad) Short Program 15 9 (1 from abroad) Education Program 3 1 Back-up Program 1 1 See also a report of the time allocation sub-committee

5 Number of hours (last season) Open use Trouble, Bad weather Additional allocations VERA open use 2061 (661.5) (288) (646.5) (395) (658) (325) 58 Open use: TOTAL Internal use Calibration, Development, Test Internal use: TOTAL Maintenance (Tuesday) Blank (short slots) open use To

6 Big troubles October 2012: Rusty subrefrector (X axis) guides Replaced by antenna group March 1, 2013: Water leak onto the Mitsubishi rack

7 Other troubles, problems Spurious from PANDA (AD converter) (continued) Originated from the AD chips Unstable nature of the new system (SW BOX + New IF + PANDA + SAM45) (continued) Number of troubles decreased, but sometimes it happens. Please continue to follow the instructions in the website of zobs (Use of arrays with pairs, etc).

8 Results from the questionnaires Achievement (%) Then, additional observational time allocated. 19 projects Based on their achievement reports (due to trouble, bad weather, etc.)

9 Others Remote observations (1st year) From Mitaka (ALMA building) Limited open for experienced users 1 project + test obs. Open for observations only with the SAM45 spectrometers Summer schools Summer school for radioastronomy (NRO) July 30-August 3, 2012 Number of students: 12 Summer school (Joetsu University of Education) August 6-8, 2012 Number of students: 4 Summer school (University of Tokyo) August 8-11, 2012 Number of students: 5

10 Plan for the next season (Dec June 2014) The 32nd open use: Deadlines (fixed to date) Category Deadline (2013) 15:00 JST [06:00 UT] General Proposal: 1st period September 1 General Proposal: 2nd period December 10 Short Program December 22 Education Program September 1 & December 10 Back-up Program September 15 Please use a revised cover sheet cut & paste results of the time estimator (explain input parameters, and refer the output results) check the list of legacy projects in the 45m website before writing your proposals

11 Instruments & software Roughly the same system as the last season (New system: Maximum number of IF 16), but computers replaced! TZ2 receiver released for ON-ON observations Two beam receiver with TZ1 Beam separation ~ 46 arcsec Mainly for a point source T70 receiver released for sensitive observations in the 70 GHz region (risk share) GHz FOREST (4 beam receiver) is not released

12 Instruments & software (2) PANDA spurious The AD chips are the origin of the spurious. We replace the chips and prepare an additional PANDA. In December, 2 IFs will be in good condition. Until March 10 IFs in total will be in good condition. Remote observations From Mitaka, NAOJ (ALMA building) Open to experienced users Open for observations only with the SAM45 spectrometers Please contact Dr. Umemoto at Mitaka in advance (~ 2 weeks) (cc: to Takano)

13 AC45 spectrometer Uneven intensity nature was re-recognized. From our website In addition, season dependence may exist. With respect to AOS: About 20-30% weak About 0-20% weak

14 AC45 spectrometer Uneven intensity nature was re-recognized. From our website In addition, season dependence may exist. BEARS (+AC45) scaling factor will be obtained by us as before. For single beam RX + AC45: (1) We recommend not to use. (2) But, if you use (e.g., S100 OTF), please calibrate by yourself (Sorry). With respect to AOS: About 20-30% weak About 0-20% weak

15 About the 45m assistant Same as before, but policy or scope of the assistant was documented. NRO recommends that observers learn basic operations with technical support from the NRO assistant so that they can conduct observations by themselves. 1 hr break Occasionally work at the main building To be uploaded in the 45m website

16 Others Summer schools Summer school for radioastronomy (NRO) September 17-21, 2013 Number of students: 8 or 12 Deadline July 29 Summer school (University of Tokyo) October, 2013 Summer school (Joetsu University of Education) October, 2013

17 Others Taurus: Close to the Sun after the middle of April Additional observational time is hard to allocate for General Proposal: 2nd period Sometimes the control room is in disorder some garbage (including the remains left after a meal and refreshments, and gum) So we request the observers to

18 Number of papers (red lines: 45m) Number of Papers total 45 NMA/RAINBOW ASTE other Number of Papers year

19 Number of papers (red lines: 45m) Number of Papers 70 Please send your scientific and technical results 60 to introduce in the NRO website! Title 30 A figure (about 150 by 150 pixels) and its caption 20 Abstract (about 100 words) 10 0 Number of Papers For details, please see below or contact us year total 45 NMA/RAINBOW ASTE other