Exposure
ID
GRAVI.2021-05-23T04:54:48.215_2
Header ID
GRAVI.2021-05-23T04:54:48.215
Date updated
2021-05-23 05:10:17 UTC+0000
Release date
2022-05-23 05:10:17 UTC+0000
UTC Start
2021-05-23 04:54:48.215
UTC End
2021-05-23 05:00:08.215
MJD Start
59357.20472471
MJD End
59357.2084284137
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.007344
Ambient temperature (°C)
11.75
Seeing (arcsec)
0.295
Observation
ID
47451
Category
science
Program ID
105.20B2.002
Program Title
THE GALACTIC CENTER AT UNPRECEDENTED RESOLUTION - PROBING GENERAL RELATIVITY WITH GRAVITY
Program Type
GTO
PI / COI
EISENHAUER/ GILLESSEN/ PERRIN/ STRAUBMEIER/ ROUSSELET-PERRAUT/ GARCIA/ BRANDNER/ GENZEL/ ECKART/ PAUMARD/ CL'ENET/ GAO/ HABIBI/ HORROBIN/ KERVELLA/ OTT/ WIDMANN/ VON FELLENBERG/ HENNING/ PFUHL/ WAISBERG/ DEXTER/ DE ZEEUW/ AMORIM
Target
ID
35588
Name
IRS16C
RA
266.4171125
DEC
-29.0076491944444
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.4800 56.4970 15.3000 16.0000
U1-U3 102.0120 102.0830 21.2000 22.0000
U1-U4 126.4450 126.9400 48.3150 49.2090
U2-U3 46.2130 46.2780 28.5000 29.4000
U2-U4 84.9020 85.4630 69.5980 70.4320
U3-U4 58.5480 59.0030 100.8360 101.4450
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 105.20B2.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59357.20472471
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416924
DEC -29.00736
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 342.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 56.48
HIERARCH ESO ISS PBL12 END 56.497
HIERARCH ESO ISS PBLA12 START 15.3
HIERARCH ESO ISS PBLA12 END 16.0
HIERARCH ESO ISS PBL13 START 102.012
HIERARCH ESO ISS PBL13 END 102.083
HIERARCH ESO ISS PBLA13 START 21.2
HIERARCH ESO ISS PBLA13 END 22.0
HIERARCH ESO ISS PBL14 START 126.445
HIERARCH ESO ISS PBL14 END 126.94
HIERARCH ESO ISS PBLA14 START 48.315
HIERARCH ESO ISS PBLA14 END 49.209
HIERARCH ESO ISS PBL23 START 46.213
HIERARCH ESO ISS PBL23 END 46.278
HIERARCH ESO ISS PBLA23 START 28.5
HIERARCH ESO ISS PBLA23 END 29.4
HIERARCH ESO ISS PBL24 START 84.902
HIERARCH ESO ISS PBL24 END 85.463
HIERARCH ESO ISS PBLA24 START 69.598
HIERARCH ESO ISS PBLA24 END 70.432
HIERARCH ESO ISS PBL34 START 58.548
HIERARCH ESO ISS PBL34 END 59.003
HIERARCH ESO ISS PBLA34 START 100.836
HIERARCH ESO ISS PBLA34 END 101.445
HIERARCH ESO ISS AMBI TAU0 START 0.007259
HIERARCH ESO ISS AMBI TAU0 END 0.007429
HIERARCH ESO ISS AMBI TEMP 11.75
HIERARCH ESO ISS AMBI FWHM START 0.29
HIERARCH ESO ISS AMBI FWHM END 0.3
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371