Exposure
ID
GRAVI.2021-05-23T05:08:48.250_2
Header ID
GRAVI.2021-05-23T05:08:48.250
Date updated
2021-05-23 05:25:32 UTC+0000
Release date
2022-05-23 05:25:32 UTC+0000
UTC Start
2021-05-23 05:08:48.250
UTC End
2021-05-23 05:14:08.250
MJD Start
59357.21444734
MJD End
59357.2181510437
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.006659
Ambient temperature (°C)
11.59
Seeing (arcsec)
0.31
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 56.5190 56.5320 17.1000 17.8000
U1-U3 102.1790 102.2390 23.2000 23.9000
U1-U4 127.6060 128.0290 50.4710 51.3230
U2-U3 46.3640 46.4180 30.6000 31.4000
U2-U4 86.2150 86.6920 71.6140 72.4140
U3-U4 59.6130 59.9990 102.3310 102.9450
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 59357.21444734
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 56.519
HIERARCH ESO ISS PBL12 END 56.532
HIERARCH ESO ISS PBLA12 START 17.1
HIERARCH ESO ISS PBLA12 END 17.8
HIERARCH ESO ISS PBL13 START 102.179
HIERARCH ESO ISS PBL13 END 102.239
HIERARCH ESO ISS PBLA13 START 23.2
HIERARCH ESO ISS PBLA13 END 23.9
HIERARCH ESO ISS PBL14 START 127.606
HIERARCH ESO ISS PBL14 END 128.029
HIERARCH ESO ISS PBLA14 START 50.471
HIERARCH ESO ISS PBLA14 END 51.323
HIERARCH ESO ISS PBL23 START 46.364
HIERARCH ESO ISS PBL23 END 46.418
HIERARCH ESO ISS PBLA23 START 30.6
HIERARCH ESO ISS PBLA23 END 31.4
HIERARCH ESO ISS PBL24 START 86.215
HIERARCH ESO ISS PBL24 END 86.692
HIERARCH ESO ISS PBLA24 START 71.614
HIERARCH ESO ISS PBLA24 END 72.414
HIERARCH ESO ISS PBL34 START 59.613
HIERARCH ESO ISS PBL34 END 59.999
HIERARCH ESO ISS PBLA34 START 102.331
HIERARCH ESO ISS PBLA34 END 102.945
HIERARCH ESO ISS AMBI TAU0 START 0.006381
HIERARCH ESO ISS AMBI TAU0 END 0.006937
HIERARCH ESO ISS AMBI TEMP 11.59
HIERARCH ESO ISS AMBI FWHM START 0.31
HIERARCH ESO ISS AMBI FWHM END 0.31
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371