Exposure
ID
GRAVI.2021-05-24T05:24:41.576_2
Header ID
GRAVI.2021-05-24T05:24:41.576
Date updated
2021-05-24 05:40:24 UTC+0000
Release date
2022-05-24 05:40:24 UTC+0000
UTC Start
2021-05-24 05:24:41.576
UTC End
2021-05-24 05:30:01.576
MJD Start
59358.2254812
MJD End
59358.2291849037
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.006049
Ambient temperature (°C)
12.52
Seeing (arcsec)
0.45
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 56.5540 56.5580 19.6000 20.3000
U1-U3 102.3550 102.3890 25.8000 26.5000
U1-U4 128.9220 129.2250 53.3380 54.1330
U2-U3 46.5300 46.5660 33.3000 34.1000
U2-U4 87.7070 88.0570 74.3210 75.0800
U3-U4 60.8250 61.1140 104.4610 105.0860
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 59358.2254812
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 56.554
HIERARCH ESO ISS PBL12 END 56.558
HIERARCH ESO ISS PBLA12 START 19.6
HIERARCH ESO ISS PBLA12 END 20.3
HIERARCH ESO ISS PBL13 START 102.355
HIERARCH ESO ISS PBL13 END 102.389
HIERARCH ESO ISS PBLA13 START 25.8
HIERARCH ESO ISS PBLA13 END 26.5
HIERARCH ESO ISS PBL14 START 128.922
HIERARCH ESO ISS PBL14 END 129.225
HIERARCH ESO ISS PBLA14 START 53.338
HIERARCH ESO ISS PBLA14 END 54.133
HIERARCH ESO ISS PBL23 START 46.53
HIERARCH ESO ISS PBL23 END 46.566
HIERARCH ESO ISS PBLA23 START 33.3
HIERARCH ESO ISS PBLA23 END 34.1
HIERARCH ESO ISS PBL24 START 87.707
HIERARCH ESO ISS PBL24 END 88.057
HIERARCH ESO ISS PBLA24 START 74.321
HIERARCH ESO ISS PBLA24 END 75.08
HIERARCH ESO ISS PBL34 START 60.825
HIERARCH ESO ISS PBL34 END 61.114
HIERARCH ESO ISS PBLA34 START 104.461
HIERARCH ESO ISS PBLA34 END 105.086
HIERARCH ESO ISS AMBI TAU0 START 0.006049
HIERARCH ESO ISS AMBI TAU0 END 0.006049
HIERARCH ESO ISS AMBI TEMP 12.52
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.45
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371