Exposure
ID
GRAVI.2021-05-29T05:12:43.358_2
Header ID
GRAVI.2021-05-29T05:12:43.358
Date updated
2021-05-29 05:25:31 UTC+0000
Release date
2022-05-29 05:25:31 UTC+0000
UTC Start
2021-05-29 05:12:43.358
UTC End
2021-05-29 05:18:03.358
MJD Start
59363.2171685
MJD End
59363.2208722037
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0051295
Ambient temperature (°C)
9.97
Seeing (arcsec)
0.65
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 56.5590 56.5590 20.6000 21.2000
U1-U3 102.3990 102.4210 26.8000 27.5000
U1-U4 129.3200 129.5720 54.4000 55.1750
U2-U3 46.5760 46.6030 34.3000 35.1000
U2-U4 88.1680 88.4660 75.3360 76.0820
U3-U4 61.2060 61.4570 105.2990 105.9300
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 59363.2171685
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416817
DEC -29.00713
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 56.559
HIERARCH ESO ISS PBL12 END 56.559
HIERARCH ESO ISS PBLA12 START 20.6
HIERARCH ESO ISS PBLA12 END 21.2
HIERARCH ESO ISS PBL13 START 102.399
HIERARCH ESO ISS PBL13 END 102.421
HIERARCH ESO ISS PBLA13 START 26.8
HIERARCH ESO ISS PBLA13 END 27.5
HIERARCH ESO ISS PBL14 START 129.32
HIERARCH ESO ISS PBL14 END 129.572
HIERARCH ESO ISS PBLA14 START 54.4
HIERARCH ESO ISS PBLA14 END 55.175
HIERARCH ESO ISS PBL23 START 46.576
HIERARCH ESO ISS PBL23 END 46.603
HIERARCH ESO ISS PBLA23 START 34.3
HIERARCH ESO ISS PBLA23 END 35.1
HIERARCH ESO ISS PBL24 START 88.168
HIERARCH ESO ISS PBL24 END 88.466
HIERARCH ESO ISS PBLA24 START 75.336
HIERARCH ESO ISS PBLA24 END 76.082
HIERARCH ESO ISS PBL34 START 61.206
HIERARCH ESO ISS PBL34 END 61.457
HIERARCH ESO ISS PBLA34 START 105.299
HIERARCH ESO ISS PBLA34 END 105.93
HIERARCH ESO ISS AMBI TAU0 START 0.004373
HIERARCH ESO ISS AMBI TAU0 END 0.005886
HIERARCH ESO ISS AMBI TEMP 9.97
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.59
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371