Exposure
ID
GRAVI.2021-06-21T05:54:01.705_2
Header ID
GRAVI.2021-06-21T05:54:01.705
Date updated
2021-06-21 06:11:07 UTC+0000
Release date
2022-06-21 06:11:07 UTC+0000
UTC Start
2021-06-21 05:54:01.705
UTC End
2021-06-21 05:59:21.705
MJD Start
59386.24585307
MJD End
59386.2495567737
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0032195
Ambient temperature (°C)
8.44
Seeing (arcsec)
0.67
Observation
ID
47538
Category
science
Program ID
105.20B2.003
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
35598
Name
IRS16C
RA
266.417116666667
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 55.0720 54.9090 34.0000 34.4000
U1-U3 99.1100 98.7310 40.3000 40.7000
U1-U4 123.2700 122.3830 69.2960 69.8370
U2-U3 44.7930 44.5750 48.1000 48.6000
U2-U4 84.5780 83.9210 91.4220 92.1320
U3-U4 60.3730 60.0660 122.0030 122.8840
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 105.20B2.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59386.24585307
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416967
DEC -29.00737
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 55.072
HIERARCH ESO ISS PBL12 END 54.909
HIERARCH ESO ISS PBLA12 START 34.0
HIERARCH ESO ISS PBLA12 END 34.4
HIERARCH ESO ISS PBL13 START 99.11
HIERARCH ESO ISS PBL13 END 98.731
HIERARCH ESO ISS PBLA13 START 40.3
HIERARCH ESO ISS PBLA13 END 40.7
HIERARCH ESO ISS PBL14 START 123.27
HIERARCH ESO ISS PBL14 END 122.383
HIERARCH ESO ISS PBLA14 START 69.296
HIERARCH ESO ISS PBLA14 END 69.837
HIERARCH ESO ISS PBL23 START 44.793
HIERARCH ESO ISS PBL23 END 44.575
HIERARCH ESO ISS PBLA23 START 48.1
HIERARCH ESO ISS PBLA23 END 48.6
HIERARCH ESO ISS PBL24 START 84.578
HIERARCH ESO ISS PBL24 END 83.921
HIERARCH ESO ISS PBLA24 START 91.422
HIERARCH ESO ISS PBLA24 END 92.132
HIERARCH ESO ISS PBL34 START 60.373
HIERARCH ESO ISS PBL34 END 60.066
HIERARCH ESO ISS PBLA34 START 122.003
HIERARCH ESO ISS PBLA34 END 122.884
HIERARCH ESO ISS AMBI TAU0 START 0.003032
HIERARCH ESO ISS AMBI TAU0 END 0.003407
HIERARCH ESO ISS AMBI TEMP 8.44
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.66
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371