[[Observing Log]]
----
#contents
----
* Investigation of baseband ripples in DASH345 (ASTE-220) [#n52935ac]
** Notes [#f6f5b534]
- To 伊藤さま (from 鎌ざき)
-- synthe_ctlのamplitude設定に上限値はありません。+23dBも設定できます。
-- EP Aqrの指示書を用意しました。
|CENTER: obs table|CENTER: DBE|CENTER: Fcenter|CENTER: Fif|CENTER: Notes|
| EPAD3pw | MAC-WIDE | 345.79599 (LSB) | 6.0 ||
| EPAD3p2 | WHSF | 345.79599 (LSB) & 356.03574 (USB) | 5.119875 ||
| EPAB8p2 | WHSF | 461.041 (LSB) & 471.281 (USB) | 5.119875 ||
-- Tuning時はifeo_tuneおよびwhsf_tuneで表示されるアッテネーター値および信号レベルを記録して下さい。これはDASH345およびBAND8から適切なレベルの受信機信号が出ていることを確認する為です。
** Information [#lffb501d]
- Observers:T. Ito
- Site:Mitaka
- Weather conditions
ASTE Environment Monitor 2017/07/12 08:46:48
===================================ASTE Site===================================
Temp. : -5.32 C Humid. : 24.63 % ( 1.01 hPa ) Solar : 0.00 kW/m2
Wind : 7.20 m/s 246 deg AirPressure : 572.70 hPa ( Rain: 0.01 )
Opacity @220 GHz : ---
================================ Receiver Cabin ===============================
Main Cabin: --- C Upper Cabin: --- C AzTEC AE: --- C Dewar: --- C
SCD : ---- ---- ---- ----
================================Observation Room===============================
Temp. : 17.04 degC Humid. : 7.33 %
DBE(MAC): 21.6 degC 29.4 degC 26.3 degC 24.6 degC
DBE(WHSF): 23.0 degC 23.0 degC 24.0 degC 26.0 degC 25.0 degC 25.0 degC
Meeting Rm.: 23.60 degC entrance: 13.00 degC WC: 7.50 ( 168.60)
-------------------------------Air Conditioners--------------------------------
Internal Out 18.50 C 16.30 C 18.00 C 18.39 C -3.50 C 21.70 C
Internal Ret. 21.20 C 16.30 C 18.30 C -6.00 C 17.30 C 22.00 C
External 168.60 C -10.00 C -7.90 C 168.60 C
================================Antenna Shelter================================
Air-cond. : 1.70 degC -0.60 degC -4.50 degC
Room Temp.: 0.00 degC
**Measurement Logs [#k379254d]
- ''Pointing toward EPaqr with DASH345 12CO WHSF ''
linux/EPAD3p2
-- UT0842 start tuning
--Az,El = -53, 57
[asteobs@aste-1c 20170712T084222 itotetsu]$ asterx_set DASH345
### Query of LO Freq ###
LO Freq = 350.984991672
...
### Set LO Power ###
/cosmos3/naoj/bin/loatt_dash345 289 199
Set ATT : Pol0=289, Pol1=199
Pol0 = 289 , Pol1 = 199
Pol0 = 0.007054[A], Pol1 = 0.004857[A]
Pol0 = 0.661777[V], Pol1 = 0.729943[V]
...
> GET_SIS_VC 0 1
1.831970,47.863770
> GET_SIS_VC 0 2
1.847534,37.585449
> GET_SIS_VC 1 1
1.857910,41.928101
> GET_SIS_VC 1 2
1.830521,51.544189
[asteobs@aste-1c 20170712T085028 itotetsu]$ whsf_tune S1USB S1LSB S2USB S2LSB
...
***Set ATT***
S1USB:ATT_old = 17.50 [dB]
S1USB:ATT_new = 17.50 [dB]
S1LSB:ATT_old = 19.25 [dB]
S1LSB:ATT_new = 19.25 [dB]
S2USB:ATT_old = 15.25 [dB]
S2USB:ATT_new = 15.25 [dB]
S2LSB:ATT_old = 16.50 [dB]
S2LSB:ATT_new = 16.50 [dB]
***Please wait a moment***
***TPD voltage***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
62.28 57.80 58.77 60.84 86.79 87.84 90.40 90.73 [mV]
[asteobs@aste-1c 20170712T085417 itotetsu]$ whsf_tune X-IF1 X-IF2 Y-IF1 Y-IF2
...
***Set ATT***
S1IFA:ATT_old = 7.25 [dB]
S1IFA:ATT_new = 7.25 [dB]
S1IFB:ATT_old = 5.75 [dB]
S1IFB:ATT_new = 5.75 [dB]
S2IFA:ATT_old = 6.00 [dB]
S2IFA:ATT_new = 6.00 [dB]
S2IFB:ATT_old = 6.75 [dB]
S2IFB:ATT_new = 6.75 [dB]
***Please wait a moment***
***TPD voltage***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
62.48 57.70 58.69 60.87 86.98 87.75 90.27 90.83 [mV]
[asteobs@aste-1c 20170712T085510 itotetsu]$ whsf_rsky
...
Result: Tsys[Tamb=293K]
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
316.5 232.7 329.0 276.3 303.0 239.1 315.6 295.6 [K]
[asteobs@aste-1c 20170712T085708 itotetsu]$ whsf_stab 10
*** stability ***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
0.07 0.08 0.08 0.09 0.12 0.08 0.07 0.09 [%]
-- UT0859 start observation
-- In X1 and X3 QLOOK windows, spurious lines are appeared.
-- UT0905 tuning start again
-- UT0907 start observation again
[asteobs@aste-1c 20170712T085725 itotetsu]$ synthe_ctl B
FREQ = 14.624372066 [GHz]
AMPL = 20.00 [dBm]
RF = ON
--(captured graohs are not set fixed span.)
-- &ref(./EPAD3p2-WHSF-DASH345-20170712a.png,,30%);
#br
-- &ref(./EPAD3p2-WHSF-DASH345-20170712b.png,,30%);
-- Raw spectra retrieved from WHSF's logging data
v sequential number of a scan
1[r1]
^^ scan type
r1: R
s1: Sky
o1,o2 : off
01,02,... : on
01,02,03 : az-scan(right,center,left in QLOOK) in 5-point pointing measurement
04,05,06 : el-scan(top,center,bottom in QLOOK) in 5-point pointing measurement
raw: raw real values of auto-correlation spectra
on-off: just subtraction between raw real values of on- and off-spectra (no R-Sky calibration)
--- X01 (left:raw, right:on-off)&br;
&ref(FFX.EPAD3p2.aste17.linux.20170712090541-X01_raw.png,,50%);
&ref(FFX.EPAD3p2.aste17.linux.20170712090541-X01_on-off.png,,50%);
--- X02 (left:raw, right:on-off)&br;
&ref(FFX.EPAD3p2.aste17.linux.20170712090541-X02_raw.png,,50%);
&ref(FFX.EPAD3p2.aste17.linux.20170712090541-X02_on-off.png,,50%);
--- X03 (left:raw, right:on-off)&br;
&ref(FFX.EPAD3p2.aste17.linux.20170712090541-X03_raw.png,,50%);
&ref(FFX.EPAD3p2.aste17.linux.20170712090541-X03_on-off.png,,50%);
--- X04 (left:raw, right:on-off)&br;
&ref(FFX.EPAD3p2.aste17.linux.20170712090541-X04_raw.png,,50%);
&ref(FFX.EPAD3p2.aste17.linux.20170712090541-X04_on-off.png,,50%);
- ''Pointing toward EPaqr with DASH345 12CO WHSF Synthe output +20dB -> +23dB''
[asteobs@aste-1c 20170712T090749 itotetsu]$ synthe_ctl B AMPL 23
FREQ = 14.624370831 [GHz]
AMPL = 20.00 [dBm]
RF = ON
### After setting synthe ###
FREQ = 14.624370831 [GHz]
AMPL = 23.00 [dBm]
RF = ON
[asteobs@aste-1c 20170712T093106 itotetsu]$ /cosmos3/naoj/bin/loatt_dash345 289 203
> GET_SIS_VC 0 1
1.831589,49.179077
> GET_SIS_VC 0 2
1.858215,38.864136
> GET_SIS_VC 1 1
1.852341,42.202759
> GET_SIS_VC 1 2
1.831970,51.452637
--UT0932 START OBSERVATION
--Just after pushing start button, re-changed AMPL pow with "$ synthe_ctl B AMPL 23".
-- &ref(./EPAD3p2-WHSF-DASH345-SG23dB-20170712c.png,,30%);
#br
-- &ref(./EPAD3p2-WHSF-DASH345-SG23dB-20170712d.png,,30%);
#br
-- &ref(./EPAD3p2-WHSF-DASH345-SG23dB-20170712e.png,,30%);
-- 10th scan
#br
-- &ref(./EPAD3p2-WHSF-DASH345-SG23dB-20170712f.png,,30%);
11th scan
- ''Pointing toward EPaqr with DASH345 12CO MACw''
linux/EPAD3pw
-- UT1001 start tuning
-- Az,El = -71, 40
[asteobs@aste-1c 20170712T100351 itotetsu]$ asterx_set DASH345
### Query of LO Freq ###
LO Freq = 351.864948672
...
> GET_SIS_VC 0 1
1.841888,32.266235
> GET_SIS_VC 0 2
1.861725,25.445557
> GET_SIS_VC 1 1
1.858749,39.682007
> GET_SIS_VC 1 2
1.828232,54.138184
[asteobs@aste-1c 20170712T100647 itotetsu]$ mmc1_rstop
...
[asteobs@aste-1c 20170712T100846 itotetsu]$ ifeo_tune 1 0.030
...
new E/O att. = 16 dB IF level=0.023949
16 dB 0.023949 V
[asteobs@aste-1c 20170712T100855 itotetsu]$ ifeo_tune 2 0.050
...
new E/O att. = 13 dB IF level=0.053492
13 dB 0.053492 V
-- yfactor 1
[asteobs@aste-1c 20170712T101047 itotetsu]$ yfactor 1
...
E/O att. = 16 dB
E/O IF level = 0.015778 V
R=0.026605 V, Sky=0.015778 V, Y=2.269113 dB
2.269113
-- yfactor 2
[asteobs@aste-1c 20170712T101157 itotetsu]$ yfactor 2
...
E/O att. = 13 dB
E/O IF level = 0.030348 V
R=0.052757 V, Sky=0.030348 V, Y=2.401500 dB
2.401500
-- &ref(./EPAD3pw-MACw-DASH345-20170712g.png,,30%);
--
- ''Pointing toward EPaqr with BAND8 12CO WHSF ''
linux/EPAB8p2
-- UT1024 start tuning
--Az,El = -74, 35
[asteobs@aste-1c 20170712T101339 itotetsu]$ asterx_set BAND8
### Query of LO Freq ###
LO Freq = 466.252762500
...
> GET_SIS_VC 0 1
1.694870,78.182983
> GET_SIS_VC 0 2
1.630020,92.193604
> GET_SIS_VC 1 1
2.120819,66.168213
> GET_SIS_VC 1 2
1.734467,55.093384
[asteobs@aste-1c 20170712T102827 itotetsu]$ whsf_tune S1USB S1LSB S2USB S2LSB
...
***Set ATT***
S1USB:ATT_old = 17.50 [dB]
S1USB:ATT_new = 17.50 [dB]
S1LSB:ATT_old = 19.25 [dB]
S1LSB:ATT_new = 19.25 [dB]
S2USB:ATT_old = 16.50 [dB]
S2USB:ATT_new = 17.75 [dB]
S2LSB:ATT_old = 19.00 [dB]
S2LSB:ATT_new = 19.25 [dB]
***Please wait a moment***
***TPD voltage***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
62.19 60.58 60.94 59.31 93.15 101.21 127.65 118.34 [mV]
[asteobs@aste-1c 20170712T102947 itotetsu]$ whsf_tune X-IF1 X-IF2 Y-IF1 Y-IF2
...
***Set ATT***
S1IFA:ATT_old = 7.25 [dB]
S1IFA:ATT_new = 7.25 [dB]
S1IFB:ATT_old = 6.25 [dB]
S1IFB:ATT_new = 6.25 [dB]
S2IFA:ATT_old = 7.50 [dB]
S2IFA:ATT_new = 7.50 [dB]
S2IFB:ATT_old = 7.75 [dB]
S2IFB:ATT_new = 7.75 [dB]
***Please wait a moment***
***TPD voltage***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
61.86 60.56 61.26 59.10 92.73 91.83 86.58 94.25 [mV]
[asteobs@aste-1c 20170712T103054 itotetsu]$ whsf_rsky
...
Result: R-SKY
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
0.123 0.445 0.118 0.395 0.132 0.466 0.133 0.412 [dB]
Result: Tsys[Tamb=293K]
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
10225.5 2718.6 10643.5 3074.7 9477.5 2588.7 9428.0 2942.6 [K]
[asteobs@aste-1c 20170712T103157 itotetsu]$ mmc1_rstop
...
*** average ***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
61.9 60.6 61.3 59.2 92.9 91.8 86.6 94.3 [mV]
*** stability ***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
0.09 0.07 0.04 0.07 0.12 0.07 0.04 0.08 [%]
--UT1037 start observation
-- &ref(./EPAB8p2-WHSF-BAND8-20170712h.png,,30%);
-- Raw spectra retrieved from WHSF's logging data
--- X01 (left:raw, right:on-off)&br;
&ref(FFX.EPAB8p2.aste17.linux.20170712103700-X01_raw.png,,50%);
&ref(FFX.EPAB8p2.aste17.linux.20170712103700-X01_on-off.png,,50%);
--- X02 (left:raw, right:on-off)&br;
&ref(FFX.EPAB8p2.aste17.linux.20170712103700-X02_raw.png,,50%);
&ref(FFX.EPAB8p2.aste17.linux.20170712103700-X02_on-off.png,,50%);
--- X03 (left:raw, right:on-off)&br;
&ref(FFX.EPAB8p2.aste17.linux.20170712103700-X03_raw.png,,50%);
&ref(FFX.EPAB8p2.aste17.linux.20170712103700-X03_on-off.png,,50%);
--- X04 (left:raw, right:on-off)&br;
&ref(FFX.EPAB8p2.aste17.linux.20170712103700-X04_raw.png,,50%);
&ref(FFX.EPAB8p2.aste17.linux.20170712103700-X04_on-off.png,,50%);
- ''Pointing toward EPaqr with DASH345 12CO WHSF and make LO pow lower''
linux/EPAD3p2
-- start tuning
/cosmos3/naoj/bin/loatt_dash345 289 199
> GET_SIS_VC 0 1
1.826859,46.768188
> GET_SIS_VC 0 2
1.852722,36.077881
> GET_SIS_VC 1 1
1.856384,41.955566
> GET_SIS_VC 1 2
1.826630,52.148437
-- manual tuning
[asteobs@aste-1c 20170712T110309 loatt_ctl]$ loatt_dash345 330 290
> GET_SIS_VC 0 1
1.825943,25.787354
> GET_SIS_VC 0 2
1.860275,20.660400
> GET_SIS_VC 1 1
1.851044,10.671997
> GET_SIS_VC 1 2
1.829758,12.878418
> CAN_CLOSE
[asteobs@aste-1c 20170712T110449 loatt_ctl]$ synthe_ctl B
FREQ = 14.624364081 [GHz]
AMPL = 20.00 [dBm]
RF = ON
[asteobs@aste-1c 20170712T110837 loatt_ctl]$ whsf_tune S1USB S1LSB S2USB S2LSB
...
***Set ATT***
S1USB:ATT_old = 15.75 [dB]
S1USB:ATT_new = 15.75 [dB]
S1LSB:ATT_old = 13.75 [dB]
S1LSB:ATT_new = 14.50 [dB]
S2USB:ATT_old = 10.25 [dB]
S2USB:ATT_new = 10.25 [dB]
S2LSB:ATT_old = 14.50 [dB]
S2LSB:ATT_new = 14.50 [dB]
***Please wait a moment***
***TPD voltage***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
59.84 60.00 56.85 59.52 81.90 80.73 61.08 70.28 [mV]
[asteobs@aste-1c 20170712T110949 loatt_ctl]$ whsf_tune X-IF1 X-IF2 Y-IF1 Y-IF2
...
***Set ATT***
S1IFA:ATT_old = 7.00 [dB]
S1IFA:ATT_new = 7.00 [dB]
S1IFB:ATT_old = 6.00 [dB]
S1IFB:ATT_new = 6.00 [dB]
S2IFA:ATT_old = 6.00 [dB]
S2IFA:ATT_new = 6.00 [dB]
S2IFB:ATT_old = 6.75 [dB]
S2IFB:ATT_new = 6.75 [dB]
***Please wait a moment***
***TPD voltage***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
59.79 60.13 56.82 59.60 87.54 87.05 90.48 88.11 [mV]
[asteobs@aste-1c 20170712T111030 loatt_ctl]$ whsf_rsky
...
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
40.8 42.8 44.6 37.6 58.3 61.5 70.2 56.8 [mV]
Result: R-SKY
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
1.644 1.473 1.077 1.994 1.749 1.508 1.125 1.902 [dB]
Result: Tsys[Tamb=293K]
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
636.6 725.9 1041.1 502.7 590.8 705.8 990.5 533.1 [K]
[asteobs@aste-1c 20170712T111231 loatt_ctl]$ mmc1_rstop
...
[asteobs@aste-1c 20170712T111514 loatt_ctl]$ whsf_stab 10
...
*** average ***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
59.7 60.1 57.0 59.5 87.2 87.1 90.9 88.0 [mV]
*** stability ***
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
0.07 0.09 0.06 0.08 0.09 0.09 0.06 0.08 [%]
--UT1116 start observation
-- In X2 and X4 QLOOK windows, spurious lines are appeared.
-- UT1118 tuning start again
-- UT1120 start observation again
-- &ref(./EPAD3p2-WHSF-DASH345-SIScurentLow-20170712J.png,,30%);
- ''Pointing toward EPaqr with DASH345 12CO WHSF with different magnet settings''
linux/EPAD3p2
--magnet table changed to DASH345.mag-20170710 DASH345.mag
-- start tuning
-- tuning normally with commands
-- R-sky
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
42.6 42.7 44.2 40.1 63.2 63.8 64.2 61.9 [mV]
Result: R-SKY
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
1.429 1.548 1.391 1.781 1.501 1.528 1.408 1.712 [dB]
Result: Tsys[Tamb=293K]
S1USB S1LSB S2USB S2LSB X-IF1 X-IF2 Y-IF1 Y-IF2
752.2 684.2 776.0 577.9 709.5 695.1 765.1 606.6 [K]
--start observation
-- &ref(./EPAD3p2-WHSF-DASH345-20170712k.png,,30%);
#br
-- &ref(./EPAD3p2-WHSF-DASH345-20170712L.png,,30%);
-- When Tsys is high, the ripple may become large.(?)
--Az,El = -84, 17
--magnet table return to DASH345.mag-20170421 DASH345.mag
#br
#br
-- Home position
- ''Allan variance measurement test''
-- Receiver PC in RX cabin aste-rec window shows to aste-mx1 with VNC.
-- Measurement Allan variance was succeed twice.
-- &ref(./Allan-DASH345-ch1-100-5000.png,,30%);
-- In third time, LabVIEW window stopped and I need close the window and end the VI program.
-- &ref(./Allan-window-stop-20170712.png,,30%);
-- After this, WHSF analogue backend (192.168.11.164, 165) replied by ping-command, but whsf_rsky command was stopped at just after showing "Connected to: IF module".
-- I need "whsf_ae_sw REBOOT" command.
-- Allan variance measurement will retry tomorrow.
![[PukiWiki]](http://www2.nao.ac.jp/~aste-www/aste_wiki/obs.jpg "[PukiWiki]")
