SMT - System Status Report
The following contains up-to-date information on the telescope system. If
there have been any recent failures in any of the telescope system components,
they are reported here so that observers with pending observing programs can use
this information to form their observing strategies.
Last update: April 23, 2007
Frontends
| Name |
Available |
Status |
| 2mm JT |
OK |
(1) |
| 1.3 mm ALMA |
OK |
Report |
| 345 GHz |
OK |
1 Chan Only |
| 490 GHz |
Not
Avail |
|
| |
|
|
| 4 Color Bolometer |
OK |
(1) |
| 19 Channel |
Not
Avail |
|
Backends
| Name |
Available |
Status |
| AOS-A |
OK |
|
| AOS-B |
OK |
|
| AOS-C |
OK |
|
| CTS-A |
OK |
|
| |
|
|
| Forbes Filters 250 KHz |
OK |
(2) |
| Forbes Filters 1.0 MHz |
OK |
Report (2) |
NOTES:
- The 2mm JT & 4-Color Bolometer receivers are usable by appointment only.
- The Forbes Filter banks have experienced a few sporadic issues with
baseline offsets in the first 512 channels of FFBA and in alternate groups of
128 channels in FFBA & FB2A. These offset problems are being addressed.
Observer problems related to the Filter should be addressed to
David Forbes.
General
To submit an observing proposal,
please refer to the call for proposals at SMT
Proposal Information.
- Call the operator at (520) 621-4328 to get the password for remote
observing.
A new remote observing manual is available online. This manual provides
detailed instructions for conducting a remote observing session at both ARO
facilities (KP12m and HHSMT).
Telescope
Functioning Normally
Tipper
Functioning Normally.
You can view the tau values measured during the:
SMT Weather
Data and Statistics from previous years are also available.
Pointing
Pointing accuracy at the HHT is normally 2-3 arcsec RMS. Full sky pointing
observations for all receivers was last done during the period 10-13 Feb 04.
Small adjustments to the all-sky pointing model are made based on pointing
checks done during normal observing sessions. And adjustments to the pointing
parameters that describe the current tilt of the azimuth axis are
automatically made on a daily basis via inclinometer measurements.
Receivers
19 Channel: 19 Element Bolometer Array (870
microns):
Not currently available. (As of Jan 18th, 05)
345 GHz: (320 - 375 GHz):
Currently being upgraded with newer mixers.
490 GHz: (430 - 480 GHz):
Out of commission due to failure of the biasing circuits.
2mm J-T receiver: (130-180 GHz):
The 2mm JT receiver is usable by appointment only.
1.3mm ALMA receiver: (195-270 GHz):
Available.
Report
Desert Star 7-element array: (315-380 GHz):
Retired.
Spectrometers
Acoustical-Optical-Spectrometers (AOS's):
AOSA (1 GHz BW, 944 kHz resolution)
Functioning Normally
AOSB (1 GHz BW, 996 kHz resolution)
Functioning Normally
AOSC (0.25 GHz BW, 370 kHz resolution)
Functioning Normally.
Chirp Transform Spectrometers:
CTSA (215 MHz BW, 40 kHz resolution):
Functioning Normally.
CTSB and CTSC:
Not available. Are expected to be installed for the 2004-5 observing
season.
Forbes Filterbanks:
Available. Status Report
Control Program:
Functioning normally.
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