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Clay Parameters

1. Telescope Counterweights


f / 11

Counterweigths MAGE IN MAGE OUT Date
  M1 Closed M1 Open M1 Closed M1 Open  
CY 73% 73% 44,3% 44,3% Oct 14 , 08
CE 55% 68% 82% 92% Oct 13, 08
CW 55% 68% 82% 92% Oct 13, 08


Numbers in red have to be checked !!

f / 5

 

Counterweigths MAGE IN MAGE OUT Date
  M1 Closed w/o M3 M1 Open M1 Closed M1 Open  
CY 66%       Oct 13, 08
CE 86%       OCt 13, 08
CW 86%       Oct 13, 08

 

2. Guiders, Cameras and Probes Parameters


This web page contains information related to guiders, cameras and probes.

  1. Probes Focus Values
  2. Leds and Slit Viewer positions
  3. Zero Values for Probes
  4. GCAM Specifications

 

--2.2. Clay Probes Focus Values


 
Instrument Side F1 (Guide) F2 (S-H) F1 (S-H) F2 (Guide) Date
MAGE AUX2 -14,5 -11,5 -16,5 -13,5 Nov 10, 08
MIKE NASE -13,0 -14,0 -16.0 ? Nov 29, 08
MIKE + IC NASE -17.0 -18.0 ? ? Jul 07, 08
MIKE + FIBERS NASE -13,3 -13,9 ? ? Aug 04, 08
LDSS3 NASW -10,0 -14,0 -14.0 -11.0 Nov 10, 08

 

-- 2.2. Clay Apertures, Leds and Slit Viewer positions


 
Side Instrument LED1 APERTURE1 LED2 APERTURE2 SV Date
AUX2 MAGE 514 / 464 505 / 490 482 / 530 480 / 531 595 / 490 March 14, 09
AUX3 n / a n / a n / a n / a n / a n / a n / a
NASE MIKE 493 / 565 487 / 563 512 / 571 509 / 581 532 / 488 Dec 13, 08
NASW LDSS3 477 / 472 481 / 464 469 / 691 467 / 681 n / a  March 14, 09

 

-- 2.4. GCAM Specifications

 

  GCAM1 & GCAM2 parameters GCAM3 parameters
  bf bkg bx pct px sn bf bkg bx pct px sn
IMACS 2 16 31 25 86 0.5 2 16 31 25 95 0.5
LDSS3 2 16 31 25 92 0.5 / / / / / /
MAGE 2 16 31 25 92 0.5 2 16 31 25 95 0.5
MAGIC 2 16 31 25 92 0.5 / / / / / /
MIKE 2 16 31 25 92 0.5 2 16 31 50 67 2.0
PANIC 2 16 31 25 92 0.5 / / / / / /

 

                    Values properly adjusted when you set corresponding rcfg number in TCS pc.

 

-- 2.3. Zero Values for Probes in Clay

 

  NASE (MIKE) NASW (LDSS3) AUX2 (MAGE) AUX3
X1 146,08 142,37 135,67 n / a
Y1 -129,57 -140,94 -131,48 n / a
F1 0,0 0,0 0,0 n / a
X2 -148,55 -143,21 -144,61 n / a
Y2 128,20 142,20 127,96 n / a
F2 0,0 0,0 0,0 n / a
Date Dec 13, 08 Dec 12, 08 Dec 13, 08  

 

3. Last values of fcfg, tcfg and M2 collimation



fcfg 66 Oct 15, 08
tcfg 63 Oct 15, 08


INSTR LDSS3 MAGE MIKE
Zset 40 200 0
Xset 27 0 20
Yset 10 0 -20
Hset 33 0 42
Vset 17 0 33
  Oct 15, 08 Oct 15, 08 Oct 15, 08

 

Xima = Yima = Hima = Vima = 0 for all instruments

 

4. M3 Tilts

 

M3 Tilt / Port NASE NASW AUX2 AUX3
TA 4,30 4,27 4,25 n/a
TB 3,41 3,45 3,42 n/a
TC 3,11 3,11 3,14 n/a
Requested CASS Angle -81,1 99,1 9,2 39,0
Date Oct 15, 08 Oct 15, 08 Oct 15, 08 n/a

 

5. Instrument / Rotator Track / Slew Modes



Instrument Rotator Tracking Mode (rm) Rotator Slew Offset Mode
IMACS 2 EQU +43.95 **
LDSS3 2 EQU -62.0 (MOS / Imaging)
LDSS3 2 HRZ -62.0 (Long Slit)
MAGE 2 EQU +15
MAGIC 2 EQU +0
MIKE 2 GRV +0
MIKE Fibers 2 GRV -7.58
PANIC 2 EQU +44.67

 

 Instrument Rotator Modes:

 

1. OFF - This simply applies the desired offset angle to the current rotator position.

2. EQU - This is the default mode for most instruments. It will apply the noted offset angle to the current rotator position for targets in the South and will apply the noted offset angle - 180 degrees for targets in the North. This mode is designed to allow for the maximum continuous time on target before running into a rotator limit.

3. HRZ - This mode is used to maintain the noted offset angle aligned with the paralactic angle (the angle is usually chosen to place a spectroscopic slit within the instrument along the paralactic angle).

4. GRV - This mode will hold the rotator (and thus the connected instrument) at a gravity invariant angle (i.e. it will keep the instrument horizontal to the platform provided the offset angle matches the rotator angle of the horizontal instrument when the telescope is pointing at the zenith.


		 *  Go HERE for Orientations.

** Go HERE for other IMACS configurations.

 

6. Parking Positions at Clay

 

Dome 45
Instrument Rotator 0
Telescope Azimuth 90
Telescope Elevation 90
Telescope Azimuth NASE 307
Telescope Azimuth NASW 127
To remove f/11, Dome 315
To install f/5, Dome 287.7
To remove/install M2s, Az / El 81.5 / 0.25

 

7. Parameters setting in TCS



  rcfg cn pf rs sz
AUX2 4 1 -1 -1 92
AUX3 5 2 -1 -1 92
NASE 1 2 -1 -1 92
NASW 0 2 -1 -1 92
  rcfg cn pf rs sz
IMACS   3 1 -1 95
MAGE   3 1 -1 95
MIKE   3 -1 -1 67

 

                    Values properly adjusted when you set corresponding rcfg number in TCS pc.

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