Exposure
ID
GRAVI.2021-05-24T05:18:26.560_2
Header ID
GRAVI.2021-05-24T05:18:26.560
Date updated
2021-05-24 05:35:23 UTC+0000
Release date
2022-05-24 05:35:23 UTC+0000
UTC Start
2021-05-24 05:18:26.560
UTC End
2021-05-24 05:23:46.560
MJD Start
59358.22114074
MJD End
59358.2248444437
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.006706
Ambient temperature (°C)
12.48
Seeing (arcsec)
0.45
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 56.5460 56.5530 18.8000 19.5000
U1-U3 102.3090 102.3520 25.0000 25.7000
U1-U4 128.5520 128.8920 52.4550 53.2630
U2-U3 46.4840 46.5260 32.5000 33.2000
U2-U4 87.2840 87.6730 73.4830 74.2500
U3-U4 60.4800 60.7970 103.7850 104.4030
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 59358.22114074
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416898
DEC -29.00719
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 56.546
HIERARCH ESO ISS PBL12 END 56.553
HIERARCH ESO ISS PBLA12 START 18.8
HIERARCH ESO ISS PBLA12 END 19.5
HIERARCH ESO ISS PBL13 START 102.309
HIERARCH ESO ISS PBL13 END 102.352
HIERARCH ESO ISS PBLA13 START 25.0
HIERARCH ESO ISS PBLA13 END 25.7
HIERARCH ESO ISS PBL14 START 128.552
HIERARCH ESO ISS PBL14 END 128.892
HIERARCH ESO ISS PBLA14 START 52.455
HIERARCH ESO ISS PBLA14 END 53.263
HIERARCH ESO ISS PBL23 START 46.484
HIERARCH ESO ISS PBL23 END 46.526
HIERARCH ESO ISS PBLA23 START 32.5
HIERARCH ESO ISS PBLA23 END 33.2
HIERARCH ESO ISS PBL24 START 87.284
HIERARCH ESO ISS PBL24 END 87.673
HIERARCH ESO ISS PBLA24 START 73.483
HIERARCH ESO ISS PBLA24 END 74.25
HIERARCH ESO ISS PBL34 START 60.48
HIERARCH ESO ISS PBL34 END 60.797
HIERARCH ESO ISS PBLA34 START 103.785
HIERARCH ESO ISS PBLA34 END 104.403
HIERARCH ESO ISS AMBI TAU0 START 0.007363
HIERARCH ESO ISS AMBI TAU0 END 0.006049
HIERARCH ESO ISS AMBI TEMP 12.48
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.45
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371