Exposure
ID
GRAVI.2024-07-25T04:49:19.206_1
Header ID
GRAVI.2024-07-25T04:49:19.206
Date updated
2024-07-25 05:05:32 UTC+0000
Release date
2025-07-25 05:05:32 UTC+0000
UTC Start
2024-07-25 04:49:19.206
UTC End
2024-07-25 04:55:19.206
MJD Start
60516.20091674
MJD End
60516.2050834067
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0033615
Ambient temperature (°C)
13.53
Seeing (arcsec)
0.795
Observation
ID
60185
Category
science
Program ID
113.268P.004
Program Title
THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
ID
44687
Name
SGRA
RA
266.417252
DEC
-29.00738
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 52.3430 52.0080 38.5000 38.9000
U1-U3 92.8170 92.0500 44.8000 45.1000
U1-U4 108.7130 106.9730 75.5710 76.1190
U2-U3 41.1770 40.7390 52.7000 53.0000
U2-U4 73.9850 72.7510 100.7910 101.7650
U3-U4 55.6780 55.1750 134.1840 135.4820
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.268P.004
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60516.20091674
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417252
DEC -29.00738
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 389.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 52.343
HIERARCH ESO ISS PBL12 END 52.008
HIERARCH ESO ISS PBLA12 START 38.5
HIERARCH ESO ISS PBLA12 END 38.9
HIERARCH ESO ISS PBL13 START 92.817
HIERARCH ESO ISS PBL13 END 92.05
HIERARCH ESO ISS PBLA13 START 44.8
HIERARCH ESO ISS PBLA13 END 45.1
HIERARCH ESO ISS PBL14 START 108.713
HIERARCH ESO ISS PBL14 END 106.973
HIERARCH ESO ISS PBLA14 START 75.571
HIERARCH ESO ISS PBLA14 END 76.119
HIERARCH ESO ISS PBL23 START 41.177
HIERARCH ESO ISS PBL23 END 40.739
HIERARCH ESO ISS PBLA23 START 52.7
HIERARCH ESO ISS PBLA23 END 53.0
HIERARCH ESO ISS PBL24 START 73.985
HIERARCH ESO ISS PBL24 END 72.751
HIERARCH ESO ISS PBLA24 START 100.791
HIERARCH ESO ISS PBLA24 END 101.765
HIERARCH ESO ISS PBL34 START 55.678
HIERARCH ESO ISS PBL34 END 55.175
HIERARCH ESO ISS PBLA34 START 134.184
HIERARCH ESO ISS PBLA34 END 135.482
HIERARCH ESO ISS AMBI TAU0 START 0.003152
HIERARCH ESO ISS AMBI TAU0 END 0.003571
HIERARCH ESO ISS AMBI TEMP 13.53
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 0.76
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1000
HIERARCH ESO FT ROBJ DELTA -290027.6541