History File

Detailed K band Status (PAST ENTRIES from 1999) :

Antenna No. Q SN No. Status
ANT 1 K SN 13
30dec99 -- Pnting error ~ 10"
30nov99 -- To = 130 K
ANT 2 K SN 16
30dec99 -- Pnting error ~ 12"
30nov99 -- To = 110 K
ANT 3 ..
30dec99 -- Pnting error ~ 2"
30nov99 -- To = 110 K
ANT 4 ..
30dec99 -- Pnting error ~ 5"
30nov99 -- To = 150 K
ANT 5 K SN 2
30dec99 -- Pnting error ~ 5"
30nov99 -- To = 40 K
ANT 6 ..
30dec99 -- Pnting error ~ 8"
30nov99 -- To = 120 K
ANT 7 ..
30dec99 -- Pnting error ~ 6"
30nov99 -- To = 110 K
ANT 8 ..
30dec99 -- Pnting error ~ 4"
30nov99 -- To = 100 K RCP & 170 K LCP (big spread)
ANT 9 K SN 1
30dec99 -- Pnting error ~ 13"
30nov99 -- To = 35 K
ANT 10 K SN 8
30dec99 -- Pnting error ~ 5"
22nov99 -- system performance looks good, To = 35 K.
ANT 11 K SN 14
30dec99 -- Pnting error ~ 8"
30nov99 -- To = 110 K RCP & 150 LCP (moderate spread)
ANT 12 ..
30dec99 -- Pnting error ~ 7"
30nov99 -- To = 100 K
ANT 13 ..
30dec99 -- Pnting error ~ 3"
30nov99 -- To = 110 K
ANT 14 ..
30dec99 -- Pnting error ~ 6"
30nov99 -- To = 120 K
ANT 15 ..
30dec99 -- Pnting error ~ 3"
30nov99 -- To = 100 K
ANT 16 ..
30dec99 -- Pnting error ~ 6"
30nov99 -- To = 140 K
ANT 17 K SN 11
30dec99 -- Pnting error ~ 11"
23dec99 -- Pointing and delays set, collimation errors corrected, Tcal entered in SYSKIF. Receiver is ready for observations.
22dec99 -- Cryo motor fixed. Receiver will be reinstalled on the antenna this afternoon.
20dec99 -- Wiring problems with cryo motor, rx back at AOC for testing
16dec99 -- New receiver still needs work before it is ready for observations.
15dec99 -- new receiver installed
ANT 18 K SN 5
30dec99 -- Pnting error ~ 7"
30nov99 -- To = 35 K
ANT 19 K SN 6
POOR
gain
curve
30dec99 -- Pnting error ~ 10"
21dec99 -- Pointing error discovered by Ken, amplitudes back to normal.
16dec99 -- K-band data blanked during testing...
04dec99 -- Amplitudes down by 4x at K band (rpt#36594)
30nov99 -- To = ? K (not on line 30nov)
28sep99 -- To = 120-180 K: Too high for new Rx. Data seems OK
ANT 20 K SN 12
30dec99 -- Pnting error not measured"
30nov99 -- To = 80 K RCP & 120 LCP (big spread but relatively low values of To)
ANT 21 K SN 7
POOR
gain
curve
30dec99 -- Pnting error ~ 15"
30nov99 -- To = 35 K
ANT 22 ..
30dec99 -- Pnting error ~ 1"
30nov99 -- To = 100 K
ANT 23 K SN 3
POOR
gain
curve
30dec99 -- Pnting error ~ 6"
30nov99 -- To = 120 K (for old receiver)
ANT 24 K SN 10
30dec99 -- Pnting error ~ 4"
22nov99 -- System performance looks good. To = 35 K
10nov99 -- upgraded receiver installed
ANT 25 K SN 15
30dec99 -- Pnting error ~ 6"
30nov99 -- To = 110 K
ANT 26 K SN 9
(WVR)
30dec99 -- Pnting error ~ 4"
30nov99 -- To = 30 K
ANT 27 ..
30dec99 -- Pnting error ~ 6"
30nov99 -- To = 130 K
ANT 28 K SN 4
(WVR)
30dec99 -- Pnting error ~ 3"
23dec99 -- Pointing and delays set, collimation errors corrected, Tcal entered in SYSKIF. Receiver ready for observations.
17dec99 -- SN 4 (with WVR) installed successfully (replaced SN 3)
22nov99 -- System performance with SN 3 looks good, To = 40 K.

Mantained by: Debra Shepherd (dshepher@aoc.nrao.edu)