Exposure
ID
GRAVI.2021-05-24T04:05:35.377_1
Header ID
GRAVI.2021-05-24T04:05:35.377
Date updated
2021-05-24 04:15:34 UTC+0000
Release date
2022-05-24 04:15:34 UTC+0000
UTC Start
2021-05-24 04:05:35.377
UTC End
2021-05-24 04:07:15.377
MJD Start
59358.17054834
MJD End
59358.1717057474
Exposure time (s)
100.0
Validation level
1
Tau 0: Coherence time (s)
0.005243
Ambient temperature (°C)
12.26
Seeing (arcsec)
0.425
Observation
ID
47454
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
35592
Name
IRS16C
RA
266.416898
DEC
-29.00719
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-SPLIT
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.3330 56.3400 9.0000 9.4000
U1-U3 101.3710 101.4040 14.6000 14.9000
U1-U4 121.7520 122.0120 40.5910 41.0080
U2-U3 45.6280 45.6590 21.4000 21.8000
U2-U4 79.4190 79.7340 62.3790 62.7720
U3-U4 53.9810 54.2500 96.0100 96.2550
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 59358.17054834
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16NW
HIERARCH ESO INS SOBJ NAME IRS16C
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 140.0
HIERARCH ESO DET2 SEQ1 DIT 1.0
HIERARCH ESO DET2 NDIT 100
HIERARCH ESO ISS PBL12 START 56.333
HIERARCH ESO ISS PBL12 END 56.34
HIERARCH ESO ISS PBLA12 START 9.0
HIERARCH ESO ISS PBLA12 END 9.4
HIERARCH ESO ISS PBL13 START 101.371
HIERARCH ESO ISS PBL13 END 101.404
HIERARCH ESO ISS PBLA13 START 14.6
HIERARCH ESO ISS PBLA13 END 14.9
HIERARCH ESO ISS PBL14 START 121.752
HIERARCH ESO ISS PBL14 END 122.012
HIERARCH ESO ISS PBLA14 START 40.591
HIERARCH ESO ISS PBLA14 END 41.008
HIERARCH ESO ISS PBL23 START 45.628
HIERARCH ESO ISS PBL23 END 45.659
HIERARCH ESO ISS PBLA23 START 21.4
HIERARCH ESO ISS PBLA23 END 21.8
HIERARCH ESO ISS PBL24 START 79.419
HIERARCH ESO ISS PBL24 END 79.734
HIERARCH ESO ISS PBLA24 START 62.379
HIERARCH ESO ISS PBLA24 END 62.772
HIERARCH ESO ISS PBL34 START 53.981
HIERARCH ESO ISS PBL34 END 54.25
HIERARCH ESO ISS PBLA34 START 96.01
HIERARCH ESO ISS PBLA34 END 96.255
HIERARCH ESO ISS AMBI TAU0 START 0.005495
HIERARCH ESO ISS AMBI TAU0 END 0.004991
HIERARCH ESO ISS AMBI TEMP 12.26
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.43
HIERARCH ESO FT ROBJ NAME IRS16NW
HIERARCH ESO FT ROBJ ALPHA 174540.047
HIERARCH ESO FT ROBJ DELTA -290026.945