Exposure
ID
GRAVI.2021-05-26T07:48:30.765_2
Header ID
GRAVI.2021-05-26T07:48:30.765
Date updated
2021-05-26 08:06:08 UTC+0000
Release date
2022-05-26 08:06:07 UTC+0000
UTC Start
2021-05-26 07:48:30.765
UTC End
2021-05-26 07:53:50.765
MJD Start
59360.32535608
MJD End
59360.3290597837
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0026455
Ambient temperature (°C)
14.53
Seeing (arcsec)
0.54
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 54.7110 54.5260 34.9000 35.3000
U1-U3 98.2710 97.8420 41.2000 41.6000
U1-U4 121.3060 120.3010 70.4480 70.9780
U2-U3 44.3090 44.0610 49.1000 49.5000
U2-U4 83.1250 82.3830 92.9490 93.6760
U3-U4 59.6950 59.3520 123.9110 124.8330
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 59360.32535608
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.41702
DEC -29.00694
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 54.711
HIERARCH ESO ISS PBL12 END 54.526
HIERARCH ESO ISS PBLA12 START 34.9
HIERARCH ESO ISS PBLA12 END 35.3
HIERARCH ESO ISS PBL13 START 98.271
HIERARCH ESO ISS PBL13 END 97.842
HIERARCH ESO ISS PBLA13 START 41.2
HIERARCH ESO ISS PBLA13 END 41.6
HIERARCH ESO ISS PBL14 START 121.306
HIERARCH ESO ISS PBL14 END 120.301
HIERARCH ESO ISS PBLA14 START 70.448
HIERARCH ESO ISS PBLA14 END 70.978
HIERARCH ESO ISS PBL23 START 44.309
HIERARCH ESO ISS PBL23 END 44.061
HIERARCH ESO ISS PBLA23 START 49.1
HIERARCH ESO ISS PBLA23 END 49.5
HIERARCH ESO ISS PBL24 START 83.125
HIERARCH ESO ISS PBL24 END 82.383
HIERARCH ESO ISS PBLA24 START 92.949
HIERARCH ESO ISS PBLA24 END 93.676
HIERARCH ESO ISS PBL34 START 59.695
HIERARCH ESO ISS PBL34 END 59.352
HIERARCH ESO ISS PBLA34 START 123.911
HIERARCH ESO ISS PBLA34 END 124.833
HIERARCH ESO ISS AMBI TAU0 START 0.002249
HIERARCH ESO ISS AMBI TAU0 END 0.003042
HIERARCH ESO ISS AMBI TEMP 14.53
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.46
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371