Exposure
ID
GRAVI.2022-05-23T04:19:06.326_2
Header ID
GRAVI.2022-05-23T04:19:06.326
Date updated
2022-05-23 04:35:52 UTC+0000
Release date
2023-05-23 04:35:52 UTC+0000
UTC Start
2022-05-23 04:19:06.326
UTC End
2022-05-23 04:24:26.326
MJD Start
59722.17993433
MJD End
59722.1836380337
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0082095
Ambient temperature (°C)
11.34
Seeing (arcsec)
0.555
Observation
ID
50947
Category
science
Program ID
109.22ZA.002
Program Title
THE GALACTIC CENTER WITH GRAVITY - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
Program Type
GTO
PI / COI
EISENHAUER/ GILLESSEN/ GENZEL/ OTT/ STRAUBMEIER/ ROUSSELET-PERRAUT/ BRANDNER/ GARCIA/ ECKART/ DE ZEEUW/ STADLER/ VON FELLENBERG/ WIDMANN/ PERRIN/ PAUMARD/ HORROBIN/ VINCENT/ HEIßEL/ DRESCHER/ BOURDAROT/ STRAUB/ CAO
Target
ID
37996
Name
IRS16C
RA
266.4171125
DEC
-29.0076471944444
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 56.3600 56.3790 10.2000 11.0000
U1-U3 101.4940 101.5770 15.9000 16.7000
U1-U4 122.7200 123.3530 42.1440 43.1610
U2-U3 45.7440 45.8210 22.8000 23.8000
U2-U4 80.5820 81.3330 63.8390 64.7920
U3-U4 54.9720 55.6040 96.9290 97.5430
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 109.22ZA.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59722.17993433
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416757
DEC -29.00715
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 56.36
HIERARCH ESO ISS PBL12 END 56.379
HIERARCH ESO ISS PBLA12 START 10.2
HIERARCH ESO ISS PBLA12 END 11.0
HIERARCH ESO ISS PBL13 START 101.494
HIERARCH ESO ISS PBL13 END 101.577
HIERARCH ESO ISS PBLA13 START 15.9
HIERARCH ESO ISS PBLA13 END 16.7
HIERARCH ESO ISS PBL14 START 122.72
HIERARCH ESO ISS PBL14 END 123.353
HIERARCH ESO ISS PBLA14 START 42.144
HIERARCH ESO ISS PBLA14 END 43.161
HIERARCH ESO ISS PBL23 START 45.744
HIERARCH ESO ISS PBL23 END 45.821
HIERARCH ESO ISS PBLA23 START 22.8
HIERARCH ESO ISS PBLA23 END 23.8
HIERARCH ESO ISS PBL24 START 80.582
HIERARCH ESO ISS PBL24 END 81.333
HIERARCH ESO ISS PBLA24 START 63.839
HIERARCH ESO ISS PBLA24 END 64.792
HIERARCH ESO ISS PBL34 START 54.972
HIERARCH ESO ISS PBL34 END 55.604
HIERARCH ESO ISS PBLA34 START 96.929
HIERARCH ESO ISS PBLA34 END 97.543
HIERARCH ESO ISS AMBI TAU0 START 0.007636
HIERARCH ESO ISS AMBI TAU0 END 0.008783
HIERARCH ESO ISS AMBI TEMP 11.34
HIERARCH ESO ISS AMBI FWHM START 0.58
HIERARCH ESO ISS AMBI FWHM END 0.53
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5299