ER200401~200407, OBS200407~200421

• ER Time : From 2020/Apr/1(09:00) to 2020/Apr/7(09:00)

• OBS Time : From 2020/Apr/7(17:00) to 2020/Apr/21(09:00)

• Rough Schedule (time can be shifted by 1 or 2 hours according to the task progress and delay)

  Mar/29	Commissioning
  Mar/30	Commissioning
  Mar/31	Commissioning, ADS, BPC, IMC angular control, etc
  Mar/31(pm5~)	ER start
  Apr/01	(am9-pm5) CAL Day 1, (rest time) ADS, BPC, IMC angular control, etc, (am1-am9) silent mode
  Apr/02	(am9-am1) ADS, BPC, IMC angular control, etc, (am1-am9) silent mode for CAL2	No JRPC meeting held, only LVEM call
  Apr/03	(am9-am1) ADS, BPC, IMC angular control, etc, (am1-am9) silent mode for CAL2
  Apr/04	(am9-am1) ADS, BPC, IMC angular control, etc, (am1-am9) silent mode for CAL2
  Apr/05	(am9-am1) ADS, BPC, IMC angular control, FF adjustment, etc, (am1-am9) silent mode for CAL2
  Apr/06	(am9-am1) Ocean Violence, (am1-am9) silent mode
  Apr/07(~am9)	ER end
  Apr/07(am9-pm5)	Maintenance for observation
  Apr/07(pm5~)	Observation Start
  Apr/09	During Observation	If we got positive results, we hope to ask something about O3c in JRPC meeting
  Apr/16	During Observation	If we got positive results, we hope to ask something about O3c in JRPC meeting
  Apr/21(~am9)	Observation End
  Apr/21(am9 ~ )	Post Observation Activities : OMC noise injection and so on

For shifts for ER and OBS

• Shift members

Observation : Points to Remember

• Basic
  • Any problems during Observation will be discussed by Miyoki, Yamamoto, Ito and related group (and SEO members) and we decide the directions. Please report these 3 persons and in "klog" if you notice any problems.
  • If we encounter violent ocean conditions, temporal down of IFO will be selected.
  • Daily morning meeting won't be held during Observation to avoid dense situation. Daily necessary information including from office staffs will be sent via e-mail during 9am-10am.
• Expected Improvements compared with the previous ER and OBS
  • CAL injection reliability
    • Injection failure is improved ?
  • Initial oplev (mirror alignment) condition at the starting point of relock process
    • Alignment recorder is installed at proper timing during lock acquisition ?
  • ADS/BPC situation
    • Whitch are effective, which should be postponed ?
  • IMC angular control
    • Successful ?
  • ISS stability
    • Improved ? , applying timing is changed ?
  • Expected kick at the unlock timing, and known annoying excitation of a suspension system.
    • Guardian is implemented.
  • Off load status for each suspension.
    • Done according to klog ?
    • How about OMC suspensions ?
  • Summary page reliability is enhanced ?
    • improved ?
  • SAL (monkey) Alignment reliability
    • Dewhitening that might contributes a bit to sensitivity should be included or not ?
    • When should we try SAL (monkey) alignment ?
    • How much IMC output power should be selected ?
  • Additional sound proof for bellows
  • Others
• Actual tasks during OBS
  • Shift Member Duty and Manual :
    • Basic monitoring and recording (by Miyakawa)
      • Manual (important check points)
  • Maintenance Day Activities (from CAL, DGS, FLC/SAF etc groups)
    • SAF/FCL: Weekly SAF/FCL check will be held in the morning on Tuesday (Furuta, Hayakawa, Yoshimura, Kamioka-mine company)
    • DGS:
    • CAL:

  • Restricted Remote Access (from T.Yamamoto)

    • We plan to stop the access to controls@k1gate again from 17:00 on 4/7.
    • If you face some emergency, please use your personal accounts in order to login DGS network.

      • > ssh firstname.lastname@172.16.33.11 <mailto:firstname.lastname@172.16.33.11>

    • I ask you to use these personal accounts only for a emergency response.

    • If you need remote access to know the site situation, subsystem status, etc as a daily check, please join to develop remote access tools such as SummaryPage, pastavi etc.

    • Unfortunately, some people probably used these accounts for daily monitoring not for a emergency response during previous run. But we need reliable observing data at least during the observing run.

Post Observation Tasks : Items and necessary time

• Calibration (~1day) -> Yamamoto

• Power recycling gain for sidebands (~ 1 day) ->

• LSC and ASC sensing matrix (~ 2 days) -> Ushiba

• ISS contribution, frequency noise contribution to DARM (2 days) -> Kokeyama, Miyakawa

• Finesse/loss measurement for X/Y arm (~ 1 day) ->

• MICH contrast defect with MICH locked and FPMI locked (~ 1 day) -> Nakano

• Mode content of AS (OMC cavity scan) (~ 1 day) -> Aso, Kokeyama

• Scattered light, swing test, IOO investigations (~5days) -> Yokozawa

• PEM injections (~2day) -> Yokozawa

• Type Bp measurement with some restricted IFO (~2days) -> Fabian

• BS measurement with some restricted IFO like simple Michelson (~2days) -> Fabian

• Type A measurement with some restricted IFO like Xarm (~2days) -> Lucia

• Feasibility of locking DRFPMI (~ 3 week) -> Nakano