Exposure
ID
GRAVI.2021-05-24T06:55:05.803_2
Header ID
GRAVI.2021-05-24T06:55:05.803
Date updated
2021-05-24 07:10:40 UTC+0000
Release date
2022-05-24 07:10:40 UTC+0000
UTC Start
2021-05-24 06:55:05.803
UTC End
2021-05-24 07:00:25.803
MJD Start
59358.28826161
MJD End
59358.2919653137
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0049255
Ambient temperature (°C)
12.0
Seeing (arcsec)
0.505
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 56.0760 55.9920 29.6000 30.2000
U1-U3 101.4410 101.2470 36.0000 36.6000
U1-U4 128.6380 128.2130 64.3610 64.9690
U2-U3 46.1350 46.0250 43.8000 44.3000
U2-U4 88.5100 88.2090 85.5130 86.1960
U3-U4 62.1890 62.0590 115.1010 115.8550
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 59358.28826161
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416898
DEC -29.00719
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 56.076
HIERARCH ESO ISS PBL12 END 55.992
HIERARCH ESO ISS PBLA12 START 29.6
HIERARCH ESO ISS PBLA12 END 30.2
HIERARCH ESO ISS PBL13 START 101.441
HIERARCH ESO ISS PBL13 END 101.247
HIERARCH ESO ISS PBLA13 START 36.0
HIERARCH ESO ISS PBLA13 END 36.6
HIERARCH ESO ISS PBL14 START 128.638
HIERARCH ESO ISS PBL14 END 128.213
HIERARCH ESO ISS PBLA14 START 64.361
HIERARCH ESO ISS PBLA14 END 64.969
HIERARCH ESO ISS PBL23 START 46.135
HIERARCH ESO ISS PBL23 END 46.025
HIERARCH ESO ISS PBLA23 START 43.8
HIERARCH ESO ISS PBLA23 END 44.3
HIERARCH ESO ISS PBL24 START 88.51
HIERARCH ESO ISS PBL24 END 88.209
HIERARCH ESO ISS PBLA24 START 85.513
HIERARCH ESO ISS PBLA24 END 86.196
HIERARCH ESO ISS PBL34 START 62.189
HIERARCH ESO ISS PBL34 END 62.059
HIERARCH ESO ISS PBLA34 START 115.101
HIERARCH ESO ISS PBLA34 END 115.855
HIERARCH ESO ISS AMBI TAU0 START 0.005457
HIERARCH ESO ISS AMBI TAU0 END 0.004394
HIERARCH ESO ISS AMBI TEMP 12.0
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.53
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371