Exposure
ID
GRAVI.2021-05-24T04:14:44.399_2
Header ID
GRAVI.2021-05-24T04:14:44.399
Date updated
2021-05-24 04:25:17 UTC+0000
Release date
2022-05-24 04:25:17 UTC+0000
UTC Start
2021-05-24 04:14:44.399
UTC End
2021-05-24 04:16:24.399
MJD Start
59358.17690277
MJD End
59358.1780601774
Exposure time (s)
100.0
Validation level
1
Tau 0: Coherence time (s)
0.00411
Ambient temperature (°C)
12.43
Seeing (arcsec)
0.495
Observation
ID
47447
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
35586
Name
IRS16C
RA
266.417114166667
DEC
-29.00764925
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 56.3620 56.3700 10.3000 10.6000
U1-U3 101.5020 101.5360 16.0000 16.3000
U1-U4 122.7870 123.0420 42.2520 42.6610
U2-U3 45.7520 45.7830 22.9000 23.3000
U2-U4 80.6620 80.9650 63.9400 64.3240
U3-U4 55.0400 55.2960 96.9940 97.2400
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 59358.17690277
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16NW
HIERARCH ESO INS SOBJ NAME IRS16NW
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 56.362
HIERARCH ESO ISS PBL12 END 56.37
HIERARCH ESO ISS PBLA12 START 10.3
HIERARCH ESO ISS PBLA12 END 10.6
HIERARCH ESO ISS PBL13 START 101.502
HIERARCH ESO ISS PBL13 END 101.536
HIERARCH ESO ISS PBLA13 START 16.0
HIERARCH ESO ISS PBLA13 END 16.3
HIERARCH ESO ISS PBL14 START 122.787
HIERARCH ESO ISS PBL14 END 123.042
HIERARCH ESO ISS PBLA14 START 42.252
HIERARCH ESO ISS PBLA14 END 42.661
HIERARCH ESO ISS PBL23 START 45.752
HIERARCH ESO ISS PBL23 END 45.783
HIERARCH ESO ISS PBLA23 START 22.9
HIERARCH ESO ISS PBLA23 END 23.3
HIERARCH ESO ISS PBL24 START 80.662
HIERARCH ESO ISS PBL24 END 80.965
HIERARCH ESO ISS PBLA24 START 63.94
HIERARCH ESO ISS PBLA24 END 64.324
HIERARCH ESO ISS PBL34 START 55.04
HIERARCH ESO ISS PBL34 END 55.296
HIERARCH ESO ISS PBLA34 START 96.994
HIERARCH ESO ISS PBLA34 END 97.24
HIERARCH ESO ISS AMBI TAU0 START 0.004223
HIERARCH ESO ISS AMBI TAU0 END 0.003997
HIERARCH ESO ISS AMBI TEMP 12.43
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.5
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1074
HIERARCH ESO FT ROBJ DELTA -290027.5373