Exposure
ID
GRAVI.2021-05-29T04:39:19.274_1
Header ID
GRAVI.2021-05-29T04:39:19.274
Date updated
2021-05-29 04:50:27 UTC+0000
Release date
2022-05-29 04:50:27 UTC+0000
UTC Start
2021-05-29 04:39:19.274
UTC End
2021-05-29 04:40:59.274
MJD Start
59363.19397308
MJD End
59363.1951304874
Exposure time (s)
100.0
Validation level
1
Tau 0: Coherence time (s)
0.0037815
Ambient temperature (°C)
10.3
Seeing (arcsec)
0.725
Observation
ID
47476
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
35608
Name
IRS16C
RA
266.416817
DEC
-29.00713
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 56.5040 56.5100 16.3000 16.6000
U1-U3 102.1120 102.1390 22.3000 22.7000
U1-U4 127.1380 127.3240 49.5730 49.9240
U2-U3 46.3030 46.3270 29.7000 30.0000
U2-U4 85.6860 85.8960 70.7730 71.1010
U3-U4 59.1840 59.3540 101.6980 101.9430
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 59363.19397308
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16NW
HIERARCH ESO INS SOBJ NAME IRS16C
RA 266.416817
DEC -29.00713
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 56.504
HIERARCH ESO ISS PBL12 END 56.51
HIERARCH ESO ISS PBLA12 START 16.3
HIERARCH ESO ISS PBLA12 END 16.6
HIERARCH ESO ISS PBL13 START 102.112
HIERARCH ESO ISS PBL13 END 102.139
HIERARCH ESO ISS PBLA13 START 22.3
HIERARCH ESO ISS PBLA13 END 22.7
HIERARCH ESO ISS PBL14 START 127.138
HIERARCH ESO ISS PBL14 END 127.324
HIERARCH ESO ISS PBLA14 START 49.573
HIERARCH ESO ISS PBLA14 END 49.924
HIERARCH ESO ISS PBL23 START 46.303
HIERARCH ESO ISS PBL23 END 46.327
HIERARCH ESO ISS PBLA23 START 29.7
HIERARCH ESO ISS PBLA23 END 30.0
HIERARCH ESO ISS PBL24 START 85.686
HIERARCH ESO ISS PBL24 END 85.896
HIERARCH ESO ISS PBLA24 START 70.773
HIERARCH ESO ISS PBLA24 END 71.101
HIERARCH ESO ISS PBL34 START 59.184
HIERARCH ESO ISS PBL34 END 59.354
HIERARCH ESO ISS PBLA34 START 101.698
HIERARCH ESO ISS PBLA34 END 101.943
HIERARCH ESO ISS AMBI TAU0 START 0.003964
HIERARCH ESO ISS AMBI TAU0 END 0.003599
HIERARCH ESO ISS AMBI TEMP 10.3
HIERARCH ESO ISS AMBI FWHM START 0.74
HIERARCH ESO ISS AMBI FWHM END 0.71
HIERARCH ESO FT ROBJ NAME IRS16NW
HIERARCH ESO FT ROBJ ALPHA 174540.047
HIERARCH ESO FT ROBJ DELTA -290026.945