2016-10-24(No. 4) - ASTE Observation Wiki

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Observing Log/2016-10-24 has been deleted.
- 1 (2016-10-24 (Mon) 12:06:17)
- 2 (2016-10-24 (Mon) 15:07:11)
- 3 (2016-10-24 (Mon) 17:08:46)
- 4 (2016-10-26 (Wed) 17:15:00)

Observing Log

ASTE-165 Investigation of unstable signals of DASH345†

&ref(): File not found: "dash345_20161024.log" at page "Observing Log/2016-10-24";

↑

12CO(3-2) toward EP Aqr†

UT01:24 aste16/ast0165/EAC2Up0.tune
- 12CO(3-2) USB IF=5.8 MAC-HIGH

UT01:35 LOST CONTROL PRIORITY just when scan monitor was launched...
- envmon and asp-mon also wend away
- Recovered just by taking the control priority again

UT01:39 aste16/ast0165/EAC2Up0.start
UT01:43 aste16/ast0165/EAC2Up0.start
UT02:01 aste16/ast0165/EAC2Up0.start
- Flat spectra were seen in the frequency domain on the line QLOOK
- The flat spectra persisted even after restarting COSMOS3 at the ASTE and Mitaka sites
&ref(): File not found: "20161024-0205.png" at page "Observing Log/2016-10-24";

UT02:11 mac_sw REBOOT
- We found dummy mode messages in the manager GUI -> ASTE-163

UT02:18 aste16/ast0165/EAC2Up0.start
```
az,el = -62 51
daz,del = 0.0 0.0
Tsys A[1,3] = 594.6 284.7
```
- The flat spectra were gone!
- A1's baseline levels were up and down.
- A1's Tsys is a double of A3's Tsys.
&ref(): File not found: "20161024-0222a1.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0222a3.png" at page "Observing Log/2016-10-24";

loatt_dash345 -p0 287
- Baseline stability looked to be improved

UT02:39 aste16/ast0165/EAC2Up0.tune
UT02:40 aste16/ast0165/EAC2Up0.start
```
az,el = -67 47
daz,del = 0.0 0.0
Tsys A[1,3] = 443.2 294.0
Peak Ta* A[1,3] = ~3.3 ~3.4
```
&ref(): File not found: "20161024-0243a1.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0243a3.png" at page "Observing Log/2016-10-24";

UT03:44 aste16/ast0165/EAC2Up0.tune
UT03:45 aste16/ast0165/EAC2Up0.start
```
az,el = -76 32
daz,del = 0.0 0.0
Tsys A[1,3] = 494.9 306.0
```
&ref(): File not found: "20161024-0351a1.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0351a3.png" at page "Observing Log/2016-10-24";

↑

12CO(3-2) toward O Cet†

UT04:24 aste16/ast0165/OCC2Up0.tune
UT04:25 aste16/ast0165/OCC2Up0.start
- 12CO(3-2) USB IF=5.8 MAC-HIGH
- same tuning parameters as the previous EAC2Up0.start
```
az,el = +10 70
daz,del = 0.0 0.0
Tsys A[1,3] = 366.6 254.8
```
&ref(): File not found: "20161024-0431a1.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0431a3.png" at page "Observing Log/2016-10-24";
```
az,el = +5 70
daz,del = 0.0 +4.0
```
&ref(): File not found: "20161024-0433a1.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0433a3.png" at page "Observing Log/2016-10-24";

UT04:43 aste16/ast0165/OCC2Up0.tune
UT04:43 aste16/ast0165/OCC2Up0.start
- 12CO(3-2) USB IF=5.8
- default tuning
```
az,el = -4 70
daz,del = 0.0 +4.0
Tsys A[1,3] = 423.4 251.0
```
&ref(): File not found: "20161024-0448a1.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0448a3.png" at page "Observing Log/2016-10-24";

UT04:54 aste16/ast0165/OCC2Up0.tune
UT04:55 aste16/ast0165/OCC2Up0.start
- 12CO(3-2) USB IF=5.8
- loatt_dash345 -p0 287
```
az,el = -13 69
daz,del = 0.0 +4.0
Tsys A[1,3] = 387.7 250.5
```
&ref(): File not found: "20161024-0457a1.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0457a3.png" at page "Observing Log/2016-10-24";

UT05:03 aste16/ast0165/OCC2Up0.tune
UT05:04 aste16/ast0165/OCC2Up0.start
- 12CO(3-2) USB IF=5.8
- loatt_dash345 -p0 297
```
az,el = -19 69
daz,del = 0.0 +4.0
Tsys A[1,3] = 443.0 249.8
```
&ref(): File not found: "20161024-0506a1.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0506a3.png" at page "Observing Log/2016-10-24";

UT05:28 aste16/ast0165/OCC2Up1.tune
UT05:36 aste16/ast0165/OCC2Up1.tune

UT05:37 aste16/ast0165/OCC2Up1.start

12CO(3-2) USB IF=6.0 MAC-HIGH
default tuning parameters

az,el = -39 65
daz,del = 0.0 +4.0
Tsys A[1,3] = 320.3 223.1

2016/10/24 05:42:43
 Temp. :  -3.26 C   Humid. : 12.16 % (  0.58 hPa )   Solar :  0.00 kW/m2
 Wind  :   2.31 m/s  298 deg   AirPressure : 572.04 hPa    ( Rain:  0.01 )
 Opacity @220 GHz :   0.0389

Current time = 2016/10/24 05:42:45
Aspirin time = 2016/10/24 05:42:43
Weather time = 2016/10/24 05:42:31
Aspirin Offset : (Az, El) = (   4.59,  -9.64 )
Aspirin status : ** WIND ON ** ( C22:on  C6:OFF WIND:on )
Refraction Corr. status : OK

Unstability could not be seen ...

&ref(): File not found: "20161024-0541a1.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0541a3.png" at page "Observing Log/2016-10-24";

↑

12CO(3-2) toward Orion KL†

UT06:04 aste16/ast0165/OKC2Up1.tune
UT06:05 aste16/ast0165/OKC2Up1.start
- 12CO(3-2) USB IF=6.0 MAC-HIGH
- Same tuning parameters
- MAC-HIGH was used by mistake

UT06:10 aste16/ast0165/OKC2Up1.tune
UT06:11 aste16/ast0165/OKC2Up1.start
- 12CO(3-2) USB IF=6.0 MAC-WIDE
- Same tuning parameters
```
az,el = 58 60
daz,del = 0.0 +4.0
Tsys A[1,3] = 353 243
```
&ref(): File not found: "20161024-0615.png" at page "Observing Log/2016-10-24";

↑

13CO(3-2) toward Orion-KL†

UT06:48 aste16/ast0165/OKC3Lp1.tune
- 13CO(3-2) LSB IF=6.0 MAC-WIDE
- default tuning parameters

UT06:54 aste16/ast0165/OKC3Lp1.tune
UT06:56 aste16/ast0165/OKC3Lp1.start
- 13CO(3-2) LSB IF=6.0 MAC-WIDE
```
az,el = 40 68
daz,del = 0.0 +4.0
Tsys A[1,3] = 233 415
```
&ref(): File not found: "20161024-0700.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0703.png" at page "Observing Log/2016-10-24";
- A spike at ~120km/s in A1 and NOT not in A3
&ref(): File not found: "20161024-0706.png" at page "Observing Log/2016-10-24"; &ref(): File not found: "20161024-0719.png" at page "Observing Log/2016-10-24";
- The spike at ~120km/s was common to A1 and A2, which came from IF#1
- The frequency of the spike was about 330.45 GHz

UT07:19 aste16/aste0165/OKC3Lp2.tune
UT07:20 aste16/aste0165/OKC3Lp2.start
- 13CO(3-2) LSB IF=5.95 (2nd LO=8250) MAC-WIDE
- default tuning parameters
```
az,el = 15 72
daz,del = 0.0 0.0
Tsys A[1-4] = 246 275 424 429
```
&ref(): File not found: "20161024-0735.png" at page "Observing Log/2016-10-24";
- Since the spike moved by ~-50 MHz, we considered that it came from signal sideband after the 1st downconversion by LO.
- One possible explanation is that there is a spurious signal in the IF #1 and its amplitude depends on cancellation by on-off switching. We need to take a look at raw data before the switching.

UT08:03 aste16/aste0165/OKC3Lp3.tune
UT08:04 aste16/aste0165/OKC3Lp3.start
- 13CO(3-2) LSB IF=5.95 (2nLO=8300->shifted center frequency by 50MHz) MAC-WIDE
- default tuning parameters
```
az,el = -10 72
daz,del = 0.0 +4.0
Tsys A[1-4] = 255 281 438 491
```
&ref(): File not found: "20161024-0806.png" at page "Observing Log/2016-10-24";

UT08:27 aste16/aste0165/OCC2Up0.tune

Confirm the update of loatt_dash345.conf

[astecntl@aste-1c ~]$ ls -l /home/astedev/frontend/loatt_ctl/loatt_dash345.conf
lrwxrwxrwx 1 astedev astctl 25 Oct 24 08:26 /home/astedev/frontend/loatt_ctl/loatt_dash345.conf -> loatt_dash345.conf.161024
[astecntl@aste-1c loatt_ctl]$ diff loatt_dash345.conf loatt_dash345.conf.150604 
4,5c4,5
< 338	285	300
< 342	290	270
---
> 338	275	300
> 342	280	270

History of Observing Log/2016-10-24 (No. 4)

ASTE-165 Investigation of unstable signals of DASH345†

12CO(3-2) toward EP Aqr†

12CO(3-2) toward O Cet†

12CO(3-2) toward Orion KL†

13CO(3-2) toward Orion-KL†