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:What's this page?|
This page is provided for the ASTE commissioning team to share the information on "subreflector measurements", which involves optimization of focusing and instrument pointing. Feel free to edit the page and then leave your revision history.

:Revision history|
-- 11-Apr-15 - TO - updated for 2015run.(編集中)
-- 16-Apr-14 - BH - updated for 2014 run.
-- 05-Jun-13 - YW - updated for 2013 run.
-- 23-Mar-11 - YT - modified for the 2011/Apr. runs. ''! STILL EDITING !''
-- 26-Apr-10 - BH - added predicted temperatures of planets in April-May 2010. 
-- 16-Apr-10 - YT - modified for runs during April-May, 2010.
-- 15-Aug-09 - YT - modified for further runs in early September, 2009
-- 18-Jun-09 - YT - modified.
-- 18-Jun-09 - SH - created.

:Contents|
#contents

----
#br

//========================================================

*Observation and reduction manuals [#r5e77f10]

- Observing manuals
--[[Focus measurement>Observation and Analysis/SubRef/ObsManual_Focusing]]
--[[Pointing measurement (cont)>Observation and Analysis/SubRef/ObsManual_Pointing]]
--[[Pointing measurement (line)>Observation and Analysis/SubRef/ObsManual_COPointing]]

- Reduction manuals
//--[[Basic reduction with "cont">cont]]
--[[Focus measurement>Observation and Analysis/SubRef/DataAnalysis_Focusing]]
--[[Pointing measurement (cont)>Observation and Analysis/SubRef/DataAnalysis_Pointing]]
--[[Pointing measurement (line)>Observation and Analysis/SubRef/DataAnalysis_COPointing]]

- Misc pages
//--[[Beammap photobook>Observation and Analysis/SubRef/BeammapPhotoBook]]
--[[Documents>Observation and Analysis/SubRef/Document]]
--[[Page for a commissioning chief (隊長のページ)>Observation and Analysis/SubRef/PageForChief]]
--[[副鏡奮闘記2009>http://www2.nao.ac.jp/~aste-www/asteant/subref_200906/index.html]]

- Opsolete pages
--[[2009年副鏡測定手順書（過去の情報）]]
--[[2010年副鏡測定データ解析（過去の情報）]]
--[[副鏡測定データ解析マニュアル（過去の情報）]]

- Previous commissioning pages
--[[2011-April Commissioning Plan]]
//-- [[CATS345 Commissioning Plan and Schedule 2011 >Observation and Analysis/SubRef/SubRef2011]] 
-- [[DASH345/Band8QM Commissioning Plan and Schedule 2012 >Observation and Analysis/SubRef/SubRef2012]] 
--[[CATS345 Commissioning Plan and Schedule 2013]]
--[[CATS345 Commissioning Plan and Schedule 2014]]

//========================================================

* DASH345/ASTE Band8(Band8QM) Commissioning Plan and Schedule 2015 [#g1bda319]
** Commissioning Plan [#cb52e948]
- This plan is for the run in 23 Mar - 31 May 2015.
- [[the commissioning plan in 2013 June>http://www2.nao.ac.jp/~aste-www/aste_wiki/pukiwiki/index.php?plugin=attach&pcmd=open&file=cats345CommPlan2013_tmp.pdf&refer=Observation%20and%20Analysis%2FSubRef%2FSubRef2013]] is available.
- 2015年実施方針
-- CATS345 commissioning planに加えて、下記の項目を確認する。
-- DASH345(off-axis光学系のため)に対して副鏡のtiltの最適化
-- DASH345/Band8ともPol0/Pol1の間のポインティング差の確認(DASH345=OMT, Band8=Wiregrid)
-- 標準天体を使った主ビーム能率の確認(aobs 2015版の検証も兼ねる)
-- 余力があれば、Band8のtilt最適化(tiltの影響の有無)

** Reference sources [#qecd6ca1]
- Target: Jupiter, Saturn
- Expected antenna temperature of the target(s)
-- main-beam filling factor: bff = 1-exp[ - ln(2)*[ D(obj)/θ(HPBW) ]^2 ], 
--- D(obj): apparent diameter of a planet, θ(HPBW): beam FWHM (D and θ should be measured in the same units.)
--- assuming the main beam is approximated with a Gaussian function as the following table
|RX|θ(HPBW)|ηmb|
|DASH345|22"|0.6|
|Band8|16"|0.45|
--- assuming brightness temperature of planets
|Planets|345GHz|460GHz|
| Jupiter | 170 K | 160 K |
| Saturn | 140 K | 130 K |
| Mars | 210 K| xxx K |

-- Jupiter
--- D(obj) = 41.5" (1st Apr) - 34.7" (31st May) (from [[JPL's HORIZONS system>http://ssd.jpl.nasa.gov/?horizons]])
--- DASH345
 $python
 >>> from math import *
 >>> bff = 1-exp(-log(2)*(34.7/22.)**2)
 >>> Tb = 170
 >>> eta = 0.6
 >>> Tas = eta*bff*Tb
 >>> Tas
 83.815515972340336
--- Band8
 $python
 >>> from math import *
 >>> bff = 1-exp(-log(2)*(34.7/16.)**2)
 >>> Tb = 160.
 >>> eta = 0.45
 >>> Tas = eta*bff*Tb
 >>> Tas
 69.236592275598227

-- Satrun 
--- D(obj) = 17.8" (1st Apr) - 18.5" (31st May) (from [[JPL's HORIZONS system>http://ssd.jpl.nasa.gov/?horizons]])
--- DASH345
 $ python
 >>> from math import *
 >>> from math import *
 >>> bff = 1-exp(-log(2)*(18.5/22.)**2)
 >>> Tb = 140.
 >>> eta = 0.6
 >>> Tas = eta*bff*Tb
 >>> Tas
 32.546784875154252
--- Band8
 $ python
 >>> from math import *
 >>> bff = 1-exp(-log(2)*(18.5/16.)**2)
 >>> Tb = 130
 >>> eta = 0.45
 >>> Tas = eta*bff*Tb
 >>> Tas
 35.34180899260928


|#ref(./azelp_150401.png,50%)|#ref(./azelp_150415.png,50%)|
|#ref(./azelp_150501.png,50%)|#ref(./azelp_150515.png,50%)|
|#ref(./azelp_150601.png,50%)||

** Commissioning Schedule [#z19cfe61]
//下記に示した順番で測定を進める。
//+夜間(日没後-日出前)、Saturnを用いた副鏡位置X,Y,Zの測定から、通常の科学観測に使用する器差を決定する。このときTilt=0で固定。
//+%%日出後-昼間にかけて外気温変化の大きい時間においても、最適な副鏡位置を測定する。%%
//+%%TiltのEL依存性に対する器差(計算値)を実装し、副鏡位置X,Y,Zの測定を繰り返す。ただし、スケジュールに２日程度の余裕が残った場合にのみ実行する。%%
//&color(red,yellow){PLEASE UPDATE IT BY YOURSELF! (5-JUL-2013 - YW.)};

|      | date | staff | plan |
|Day 1 | [[3/23 >Observing Log/2015-03-23]] | (none) | canceled |
|Day 2 | [[3/24 >Observing Log/2015-03-24]] | (none) | canceled |
|Day 3 | [[3/25 >Observing Log/2015-03-25]] | (none) | canceled |
|Day 4 | [[3/26 >Observing Log/2015-03-26]] | Hatsukade, Matsui | canceled |
|Day 5 | [[3/27 >Observing Log/2015-03-27]] | Hatsukade, Matsui | canceled |
|Day 6 | [[3/30 >Observing Log/2015-03-30]] | Hatsukade, Kamazaki | canceled |
|Day 7 | [[3/31 >Observing Log/2015-03-31]] | Hatsukade, Ashitagawa| canceled |
|Day 8 | [[4/1 >Observing Log/2015-04-01]] | Tanaka, Ashitagawa, Ohashi | canceled |
|Day 9 | [[4/2 >Observing Log/2015-04-02]] | Ashitagawa, Ohashi, Kobiki, Kamazaki | canceled |
|Day 10 | [[4/3 >Observing Log/2015-04-03]] | Kamazaki, Matsui, Kobiki | canceled |
|Day 11 | [[4/6 >Observing Log/2015-04-06]] | Tanaka, Matsui, Ohashi | OPT |
|Day 12 | [[4/7 >Observing Log/2015-04-07]] | Tanaka, Ashitagawa, Kobiki | Focusing for DASH345 |
|Day 13 | [[4/8 >Observing Log/2015-04-08]] | Kamazaki, Matsui, Kobiki | Focusing for DASH345 |
|Day 14 | [[4/9 >Observing Log/2015-04-09]] | Kamazaki, Ashitagawa, Ohashi | Focusing for DASH345 |
|Day 15 | [[4/10 >Observing Log/2015-04-10]] | | 受信機昇温中のため休み |
|Day 16 | [[4/13 >Observing Log/2015-04-13]] | Matsui, Ohashi, Kobiki |Fucusing for DASH345 |
|Day 17 | [[4/14 >Observing Log/2015-04-14]] | Tanaka, Kamazaki | Fucusing for DASH345 |
|Day 18 | [[4/15 >Observing Log/2015-04-15]] | Ashitagawa, Ohashi | Fucusing for DASH345 |
|Day 19 | [[4/16 >Observing Log/2015-04-16]] |  Matsui, Kobiki | Fucusing for DASH345 |
|Day 20 | [[4/17 >Observing Log/2015-04-17]] | Umemoto, Kamazaki | Subref for DASH345 |
|Day 21 | [[4/18 >Observing Log/2015-04-18]] | Okuda | Focusing for Band8 |
|Day 22 | [[4/18 >Observing Log/2015-04-19]] | Okuda | Confirmation of Kisa/Subref meas. for Band8 |
|Day 23 | [[4/20 >Observing Log/2015-04-20]] | Kamazaki, Ohashi | Confirmation Kisa (OPT) |
|Day 24 | [[4/21 >Observing Log/2015-04-21]] | Tanaka, Matsui | Subref meas. for DASH345 |
|Day 25 | [[4/22 >Observing Log/2015-04-22]] | Ashitagawa, Ohashi | Subref meas. for Band8 |
|Day 26 | [[4/23 >Observing Log/2015-04-23]] | Tanaka, Ashitagawa | Subref meas. for DASH345 |
|Day 27 | [[4/24 >Observing Log/2015-04-24]] | Umemoto, Ohashi | Subref meas. for DASH345 w/ tilt angle |
|Day 28 | [[4/25 >Observing Log/2015-04-25]] | Okuda?(if possible) | Tests of subref meas. for DASH345 w/ tilt angle |
|Day 29 | [[4/26 >Observing Log/2015-04-26]] | Okuda? | (day off) |
|Day 30 | [[4/27 >Observing Log/2015-04-27]] | Kamazaki, Ohashi | Subref meas. for DASH345 w/ tilt angle |
|Day 31 | [[4/28 >Observing Log/2015-04-28]] | Tanaka, Umemoto | (TBD) |
|Day 32 | [[4/29 >Observing Log/2015-04-29]] | Tanaka, Ohashi (if possible) | (TBD) |
|Day 33 | [[4/30 >Observing Log/2015-04-30]] | Ashitagawa, Ohashi | (TBD) |
|Day 34 | [[5/1 >Observing Log/2015-05-01]] | Kamazaki, Ashitagawa | (TBD) |
|Day 35 | [[5/7 >Observing Log/2015-05-07]] | Tanaka, Ashitagawa | (TBD) |
|Day 36 | [[5/8 >Observing Log/2015-05-08]] | Kamazaki, Ohashi | (TBD) |
|Day 37 | [[5/11 >Observing Log/2015-05-11]] | ?? | (TBD) |
|Day 38 | [[5/12 >Observing Log/2015-05-12]] | Kamazaki, Ashitagawa | (TBD) |
|Day 39 | [[5/13 >Observing Log/2015-05-13]] | Tanaka,  Ohashi | (TBD) |
|Day 40 | [[5/14 >Observing Log/2015-05-14]] | Ashitagawa,  Ohashi | (TBD) |
|Day 41 | [[5/15 >Observing Log/2015-05-15]] | Umemoto, Kamazaki | (TBD) |
|Day 42 | [[5/18 >Observing Log/2015-05-18]] | Tanaka, Ohashi | (TBD) |
|Day 43 | [[5/19 >Observing Log/2015-05-19]] | Tanaka, Ohashi | (TBD) |
|Day 44 | [[5/20 >Observing Log/2015-05-20]] | Kamazaki,  Ashitagawa | (TBD) |
|Day 45 | [[5/21 >Observing Log/2015-05-21]] | Tanaka,  Ohashi | (TBD) |
|Day 46 | [[5/22 >Observing Log/2015-05-22]] | Kamazaki,  Ashitagawa | (TBD) |
|Day 47 | [[5/25 >Observing Log/2015-05-25]] | Ohashi, Ashitagawa | (TBD) |
|Day 48 | [[5/26 >Observing Log/2015-05-26]] | Tanaka, Ohashi | (TBD) |
|Day 49 | [[5/27 >Observing Log/2015-05-27]] | Tanaka, Ashitagawa, +Okuda | canceld |
|Day 50 | [[5/28 >Observing Log/2015-05-28]] | Umemoto, Ashitagawa, +Okuda | canceld |
|Day 51 | [[5/29 >Observing Log/2015-05-29]] | Okuda | canceled |
|Day 52 | [[6/1 >Observing Log/2015-06-01]] | Okuda | CO pointing |
- note (*): when it is windless (v_wind < 5 m/s), optical pointing may be performed.
- 日程調整中(2015/04/28) http://densuke.biz/list?cd=bvkYsuucMzCy95QG

//========================================================

* Subref measurement overview [#bad3631c]

**はじめに - 背景と獲得目標 [#w6751802]
//-副鏡の垂れ(tilt)についての最適化が行われてきていなかった
//-鏡面の熱変形による焦点位置のずれが適切に評価されていなかった

//ことを踏まえて、今回の獲得目標を下記の３点とします。
獲得目標は下記のとおり。

-副鏡位置X, Y, ZのEL依存性を決定（従来どおり）

//-%%夜明け、%%(適した天体なし) 昼、夕方の外気温変化のある時間における副鏡位置変化を測定する（新規）
//-%%tiltのEL依存性を実装してみる（新規）%%

#ref(subref_geom.png);
''図：副鏡位置座標XYZΦの定義''



//========================================================

**測定の概要 [#b18b46fc]

*** 簡単にフォーカスを合わせる [#g65b2a88]

- [[Quick Focusing>Observation and Analysis/SubRef/ObsManual_QuickFocusing]] ページを新設 (08-Jul-13, YT)

- 測定
-- 指示書： jupzb8.start (for B8QM), jupzc3.start (for CATS345)
-- subref offset (dx, dy, dz) = (0, 0, 0) とする
//
- 解析
-- contを使用
-- axial focus point をさがすには、こちらのURLを参照。http://www2.nao.ac.jp/~aste-www/obslog_wiki/pukiwiki/index.php?Observing%20Log%2F2010-07-27#md6dc9dc


*** 副鏡位置X,Y,ZのEL依存性の測定 [#i5d98a62]

*** 連続波ポインティング/ビームマッピングによる器差追い込み [#x8d78544]

*** 外気温変化時の副鏡位置変化の測定 (advanced) [#vf4fe9df]

*** 最適なtilt位置の測定 (advanced) [#v76caff0]

//========================================================

#br

*comment [#ld486190]
#pcomment()