Exposure
ID
GRAVI.2021-05-24T07:07:35.835_2
Header ID
GRAVI.2021-05-24T07:07:35.835
Date updated
2021-05-24 07:25:38 UTC+0000
Release date
2022-05-24 07:25:38 UTC+0000
UTC Start
2021-05-24 07:07:35.835
UTC End
2021-05-24 07:12:55.835
MJD Start
59358.29694253
MJD End
59358.3006462337
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.004982
Ambient temperature (°C)
11.91
Seeing (arcsec)
0.52
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 55.8820 55.7790 30.8000 31.3000
U1-U3 100.9930 100.7560 37.2000 37.7000
U1-U4 127.6430 127.1020 65.6740 66.2630
U2-U3 45.8800 45.7440 45.0000 45.5000
U2-U4 87.7990 87.4060 87.0030 87.6880
U3-U4 61.8760 61.6960 116.7610 117.5440
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 59358.29694253
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 55.882
HIERARCH ESO ISS PBL12 END 55.779
HIERARCH ESO ISS PBLA12 START 30.8
HIERARCH ESO ISS PBLA12 END 31.3
HIERARCH ESO ISS PBL13 START 100.993
HIERARCH ESO ISS PBL13 END 100.756
HIERARCH ESO ISS PBLA13 START 37.2
HIERARCH ESO ISS PBLA13 END 37.7
HIERARCH ESO ISS PBL14 START 127.643
HIERARCH ESO ISS PBL14 END 127.102
HIERARCH ESO ISS PBLA14 START 65.674
HIERARCH ESO ISS PBLA14 END 66.263
HIERARCH ESO ISS PBL23 START 45.88
HIERARCH ESO ISS PBL23 END 45.744
HIERARCH ESO ISS PBLA23 START 45.0
HIERARCH ESO ISS PBLA23 END 45.5
HIERARCH ESO ISS PBL24 START 87.799
HIERARCH ESO ISS PBL24 END 87.406
HIERARCH ESO ISS PBLA24 START 87.003
HIERARCH ESO ISS PBLA24 END 87.688
HIERARCH ESO ISS PBL34 START 61.876
HIERARCH ESO ISS PBL34 END 61.696
HIERARCH ESO ISS PBLA34 START 116.761
HIERARCH ESO ISS PBLA34 END 117.544
HIERARCH ESO ISS AMBI TAU0 START 0.004994
HIERARCH ESO ISS AMBI TAU0 END 0.00497
HIERARCH ESO ISS AMBI TEMP 11.91
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.49
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371