Exposure
ID
GRAVI.2021-05-30T04:46:02.221_2
Header ID
GRAVI.2021-05-30T04:46:02.221
Date updated
2021-05-30 05:00:14 UTC+0000
Release date
2022-05-30 05:00:14 UTC+0000
UTC Start
2021-05-30 04:46:02.221
UTC End
2021-05-30 04:51:22.221
MJD Start
59364.19863682
MJD End
59364.2023405237
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0067165
Ambient temperature (°C)
9.89
Seeing (arcsec)
0.58
Observation
ID
47463
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
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 56.5290 56.5410 17.7000 18.4000
U1-U3 102.2280 102.2830 23.8000 24.6000
U1-U4 127.9560 128.3520 51.1740 52.0120
U2-U3 46.4090 46.4590 31.2000 32.0000
U2-U4 86.6100 87.0570 72.2750 73.0640
U3-U4 59.9320 60.2950 102.8370 103.4530
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 59364.19863682
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.41672
DEC -29.00717
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 56.529
HIERARCH ESO ISS PBL12 END 56.541
HIERARCH ESO ISS PBLA12 START 17.7
HIERARCH ESO ISS PBLA12 END 18.4
HIERARCH ESO ISS PBL13 START 102.228
HIERARCH ESO ISS PBL13 END 102.283
HIERARCH ESO ISS PBLA13 START 23.8
HIERARCH ESO ISS PBLA13 END 24.6
HIERARCH ESO ISS PBL14 START 127.956
HIERARCH ESO ISS PBL14 END 128.352
HIERARCH ESO ISS PBLA14 START 51.174
HIERARCH ESO ISS PBLA14 END 52.012
HIERARCH ESO ISS PBL23 START 46.409
HIERARCH ESO ISS PBL23 END 46.459
HIERARCH ESO ISS PBLA23 START 31.2
HIERARCH ESO ISS PBLA23 END 32.0
HIERARCH ESO ISS PBL24 START 86.61
HIERARCH ESO ISS PBL24 END 87.057
HIERARCH ESO ISS PBLA24 START 72.275
HIERARCH ESO ISS PBLA24 END 73.064
HIERARCH ESO ISS PBL34 START 59.932
HIERARCH ESO ISS PBL34 END 60.295
HIERARCH ESO ISS PBLA34 START 102.837
HIERARCH ESO ISS PBLA34 END 103.453
HIERARCH ESO ISS AMBI TAU0 START 0.006076
HIERARCH ESO ISS AMBI TAU0 END 0.007357
HIERARCH ESO ISS AMBI TEMP 9.89
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.53
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371