Exposure
ID
GRAVI.2021-05-25T09:00:54.325_2
Header ID
GRAVI.2021-05-25T09:00:54.325
Date updated
2021-05-25 09:15:15 UTC+0000
Release date
2022-05-25 09:15:15 UTC+0000
UTC Start
2021-05-25 09:00:54.325
UTC End
2021-05-25 09:06:14.325
MJD Start
59359.37562876
MJD End
59359.3793324637
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.00329
Ambient temperature (°C)
11.93
Seeing (arcsec)
0.98
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 51.7690 51.4490 39.1000 39.3000
U1-U3 91.5060 90.7770 45.3000 45.5000
U1-U4 105.7410 104.0950 76.4920 76.9770
U2-U3 40.4290 40.0140 53.2000 53.5000
U2-U4 71.8810 70.7280 102.4470 103.3560
U3-U4 54.8260 54.3720 136.3920 137.5990
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 59359.37562876
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.417087
DEC -29.00718
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 51.769
HIERARCH ESO ISS PBL12 END 51.449
HIERARCH ESO ISS PBLA12 START 39.1
HIERARCH ESO ISS PBLA12 END 39.3
HIERARCH ESO ISS PBL13 START 91.506
HIERARCH ESO ISS PBL13 END 90.777
HIERARCH ESO ISS PBLA13 START 45.3
HIERARCH ESO ISS PBLA13 END 45.5
HIERARCH ESO ISS PBL14 START 105.741
HIERARCH ESO ISS PBL14 END 104.095
HIERARCH ESO ISS PBLA14 START 76.492
HIERARCH ESO ISS PBLA14 END 76.977
HIERARCH ESO ISS PBL23 START 40.429
HIERARCH ESO ISS PBL23 END 40.014
HIERARCH ESO ISS PBLA23 START 53.2
HIERARCH ESO ISS PBLA23 END 53.5
HIERARCH ESO ISS PBL24 START 71.881
HIERARCH ESO ISS PBL24 END 70.728
HIERARCH ESO ISS PBLA24 START 102.447
HIERARCH ESO ISS PBLA24 END 103.356
HIERARCH ESO ISS PBL34 START 54.826
HIERARCH ESO ISS PBL34 END 54.372
HIERARCH ESO ISS PBLA34 START 136.392
HIERARCH ESO ISS PBLA34 END 137.599
HIERARCH ESO ISS AMBI TAU0 START 0.00371
HIERARCH ESO ISS AMBI TAU0 END 0.00287
HIERARCH ESO ISS AMBI TEMP 11.93
HIERARCH ESO ISS AMBI FWHM START 0.82
HIERARCH ESO ISS AMBI FWHM END 1.14
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371