History of Observing Log/B8D3signals_20160916 (No. 3)

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• Observing Log/B8D3signals_20160916 has been deleted.
  • 1 (2016-09-16 (Fri) 23:57:03)
  • 2 (2016-09-17 (Sat) 00:17:58)
  • 3 (2016-09-17 (Sat) 10:57:14)

Observing Log

Investigation of unstable signals in BAND8 and DASH345 (2016-09-16)†

• JST2016-09-16T20:30-22:50
• 参加者: 伊藤(三鷹)、木挽(ASTE)、藤井(skype)、鎌﨑(skype)
• &ref(): File not found: "ASTEB8キャビン内ケーブル揺動試験手順書20160916c-small.pdf" at page "Observing Log/B8D3signals_20160916";

BAND8チューニング後、アンテナEL=60で静止中、受信機キャビン内に人不在†

• UT11:49 突発的なギザギザの振幅レベルの変化

  #ref(): File not found: "20160916-1149.png" at page "Observing Log/B8D3signals_20160916"

• UT11:50 レベルジャンプ

  #ref(): File not found: "20160916-1150.png" at page "Observing Log/B8D3signals_20160916"

ケーブル(A)ゆらし†

• UT12:11 ケーブルAのシンセ側 → rmsは微妙に増加した?

  #ref(): File not found: "20160916-1211.png" at page "Observing Log/B8D3signals_20160916"

• UT12:14 ケーブルAの受信機側 → 変化無し

  #ref(): File not found: "20160916-1214.png" at page "Observing Log/B8D3signals_20160916"

ケーブル(B)ゆらし†

• UT12:15 ケーブルB → 変化無し

  #ref(): File not found: "20160916-1215.png" at page "Observing Log/B8D3signals_20160916"

• UT12:16 ケーブルBの受信機側 → rmsは瞬間的に増加した、ただしすぐに元のレベルに戻った

  #ref(): File not found: "20160916-1216.png" at page "Observing Log/B8D3signals_20160916"

• UT12:20 IFケーブル束をまとめてゆらす → 変化無し

  #ref(): File not found: "20160916-1220.png" at page "Observing Log/B8D3signals_20160916"

ケーブル(C)ゆらし†

• UT12:21 ケーブルC → 少し不安定化した?

  #ref(): File not found: "20160916-1221.png" at page "Observing Log/B8D3signals_20160916"

• UT12:29 上から垂れているケーブルのP0側 → rmsが瞬間的に増加した

  #ref(): File not found: "20160916-1229.png" at page "Observing Log/B8D3signals_20160916"

• UT12:31 一度垂れてから戻る側の右側P1 → rmsが増加

  #ref(): File not found: "20160916-1231.png" at page "Observing Log/B8D3signals_20160916"

• UT12:33 一度垂れてから戻る側の左側P0 → rmsが増加

  #ref(): File not found: "20160916-1233.png" at page "Observing Log/B8D3signals_20160916"

ケーブル(D)ゆらし†

• UT12:38 影響無し

  #ref(): File not found: "20160916-1238.png" at page "Observing Log/B8D3signals_20160916"

ケーブル(E)ゆらし†

• UT12:41 影響無し、ケーブルから手を話した直後にうねりが見えた

  #ref(): File not found: "20160916-1241.png" at page "Observing Log/B8D3signals_20160916"

ELアンテナ駆動 (az,el) = (+180.0, 90.0) -> (+180.0, 60.0)†

• UT13:31 駆動直前

  #ref(): File not found: "20160916-1331.png" at page "Observing Log/B8D3signals_20160916"

• UT13:32 EL=60度へ駆動中

  #ref(): File not found: "20160916-1332.png" at page "Observing Log/B8D3signals_20160916"

• UT13:33 駆動停止直後

  #ref(): File not found: "20160916-1333.png" at page "Observing Log/B8D3signals_20160916"

• UT13:35 EL=60度で静止中

  #ref(): File not found: "20160916-1335.png" at page "Observing Log/B8D3signals_20160916"

AZアンテナ駆動 (az,el) = (+180.0, 60.0) -> (+150.0, 60.0)†

• UT13:39 AZ=150度へ駆動中

  #ref(): File not found: "20160916-1339.png" at page "Observing Log/B8D3signals_20160916"

• UT13:43 駆動停止直後

  #ref(): File not found: "20160916-1343.png" at page "Observing Log/B8D3signals_20160916"

• UT13:44 AZ=180度へ駆動中

  #ref(): File not found: "20160916-1344.png" at page "Observing Log/B8D3signals_20160916"