Exposure
ID
GRAVI.2021-05-23T08:42:39.789_2
Header ID
GRAVI.2021-05-23T08:42:39.789
Date updated
2021-05-23 08:55:41 UTC+0000
Release date
2022-05-23 08:55:41 UTC+0000
UTC Start
2021-05-23 08:42:39.789
UTC End
2021-05-23 08:47:59.789
MJD Start
59357.36296052
MJD End
59357.3666642237
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0079425
Ambient temperature (°C)
11.56
Seeing (arcsec)
0.3
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 53.0830 52.8150 37.7000 38.0000
U1-U3 94.5100 93.8960 44.0000 44.3000
U1-U4 112.5810 111.1730 74.2510 74.7480
U2-U3 42.1450 41.7930 51.9000 52.2000
U2-U4 76.7520 75.7400 98.5730 99.3900
U3-U4 56.8410 56.4100 131.2310 132.3180
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 59357.36296052
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.416924
DEC -29.00736
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 53.083
HIERARCH ESO ISS PBL12 END 52.815
HIERARCH ESO ISS PBLA12 START 37.7
HIERARCH ESO ISS PBLA12 END 38.0
HIERARCH ESO ISS PBL13 START 94.51
HIERARCH ESO ISS PBL13 END 93.896
HIERARCH ESO ISS PBLA13 START 44.0
HIERARCH ESO ISS PBLA13 END 44.3
HIERARCH ESO ISS PBL14 START 112.581
HIERARCH ESO ISS PBL14 END 111.173
HIERARCH ESO ISS PBLA14 START 74.251
HIERARCH ESO ISS PBLA14 END 74.748
HIERARCH ESO ISS PBL23 START 42.145
HIERARCH ESO ISS PBL23 END 41.793
HIERARCH ESO ISS PBLA23 START 51.9
HIERARCH ESO ISS PBLA23 END 52.2
HIERARCH ESO ISS PBL24 START 76.752
HIERARCH ESO ISS PBL24 END 75.74
HIERARCH ESO ISS PBLA24 START 98.573
HIERARCH ESO ISS PBLA24 END 99.39
HIERARCH ESO ISS PBL34 START 56.841
HIERARCH ESO ISS PBL34 END 56.41
HIERARCH ESO ISS PBLA34 START 131.231
HIERARCH ESO ISS PBLA34 END 132.318
HIERARCH ESO ISS AMBI TAU0 START 0.008659
HIERARCH ESO ISS AMBI TAU0 END 0.007226
HIERARCH ESO ISS AMBI TEMP 11.56
HIERARCH ESO ISS AMBI FWHM START 0.29
HIERARCH ESO ISS AMBI FWHM END 0.31
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371