Exposure
ID
GRAVI.2021-05-24T08:16:21.008_2
Header ID
GRAVI.2021-05-24T08:16:21.008
Date updated
2021-05-24 08:30:51 UTC+0000
Release date
2022-05-24 08:30:51 UTC+0000
UTC Start
2021-05-24 08:16:21.008
UTC End
2021-05-24 08:21:41.008
MJD Start
59358.34468759
MJD End
59358.3483912937
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0034645
Ambient temperature (°C)
11.59
Seeing (arcsec)
0.825
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 54.0170 53.7950 36.3000 36.7000
U1-U3 96.6630 96.1500 42.6000 43.0000
U1-U4 117.5540 116.3640 72.2760 72.7860
U2-U3 43.3820 43.0870 50.5000 50.9000
U2-U4 80.3650 79.4960 95.5280 96.2850
U3-U4 58.4320 58.0420 127.2220 128.2110
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 59358.34468759
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 54.017
HIERARCH ESO ISS PBL12 END 53.795
HIERARCH ESO ISS PBLA12 START 36.3
HIERARCH ESO ISS PBLA12 END 36.7
HIERARCH ESO ISS PBL13 START 96.663
HIERARCH ESO ISS PBL13 END 96.15
HIERARCH ESO ISS PBLA13 START 42.6
HIERARCH ESO ISS PBLA13 END 43.0
HIERARCH ESO ISS PBL14 START 117.554
HIERARCH ESO ISS PBL14 END 116.364
HIERARCH ESO ISS PBLA14 START 72.276
HIERARCH ESO ISS PBLA14 END 72.786
HIERARCH ESO ISS PBL23 START 43.382
HIERARCH ESO ISS PBL23 END 43.087
HIERARCH ESO ISS PBLA23 START 50.5
HIERARCH ESO ISS PBLA23 END 50.9
HIERARCH ESO ISS PBL24 START 80.365
HIERARCH ESO ISS PBL24 END 79.496
HIERARCH ESO ISS PBLA24 START 95.528
HIERARCH ESO ISS PBLA24 END 96.285
HIERARCH ESO ISS PBL34 START 58.432
HIERARCH ESO ISS PBL34 END 58.042
HIERARCH ESO ISS PBLA34 START 127.222
HIERARCH ESO ISS PBLA34 END 128.211
HIERARCH ESO ISS AMBI TAU0 START 0.003355
HIERARCH ESO ISS AMBI TAU0 END 0.003574
HIERARCH ESO ISS AMBI TEMP 11.59
HIERARCH ESO ISS AMBI FWHM START 0.9
HIERARCH ESO ISS AMBI FWHM END 0.75
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1070
HIERARCH ESO FT ROBJ DELTA -290027.5371