Exposure
- ID
- GRAVI.2024-07-18T04:01:57.614_2
- Header ID
- GRAVI.2024-07-18T04:01:57.614
- Date updated
- 2024-07-18 08:45:42 UTC+0000
- Release date
- 2025-07-18 08:45:39 UTC+0000
- UTC Start
- 2024-07-18 04:01:57.614
- UTC End
- 2024-07-18 04:07:57.614
- MJD Start
- 60509.16802794
- MJD End
- 60509.17219460667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0081975
- Ambient temperature (°C)
- 16.7
- Seeing (arcsec)
- 0.43
Observation
- ID
- 60139
- 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
- 43560
- Name
- IRS16C
- RA
- 266.4170833333333
- DEC
- -29.007681694444443
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 | 55.2050 | 55.0300 | 33.6000 | 34.1000 |
| U1-U3 | 99.4190 | 99.0130 | 39.9000 | 40.4000 |
| U1-U4 | 123.9970 | 123.0460 | 68.8200 | 69.4380 |
| U2-U3 | 44.9730 | 44.7380 | 47.7000 | 48.2000 |
| U2-U4 | 85.1170 | 84.4130 | 90.8100 | 91.6060 |
| U3-U4 | 60.6260 | 60.2960 | 121.2500 | 122.2290 |
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 | 60509.16802794 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416896 |
| DEC | -29.00733 |
| 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 | 55.205 |
| HIERARCH ESO ISS PBL12 END | 55.03 |
| HIERARCH ESO ISS PBLA12 START | 33.6 |
| HIERARCH ESO ISS PBLA12 END | 34.1 |
| HIERARCH ESO ISS PBL13 START | 99.419 |
| HIERARCH ESO ISS PBL13 END | 99.013 |
| HIERARCH ESO ISS PBLA13 START | 39.9 |
| HIERARCH ESO ISS PBLA13 END | 40.4 |
| HIERARCH ESO ISS PBL14 START | 123.997 |
| HIERARCH ESO ISS PBL14 END | 123.046 |
| HIERARCH ESO ISS PBLA14 START | 68.82 |
| HIERARCH ESO ISS PBLA14 END | 69.438 |
| HIERARCH ESO ISS PBL23 START | 44.973 |
| HIERARCH ESO ISS PBL23 END | 44.738 |
| HIERARCH ESO ISS PBLA23 START | 47.7 |
| HIERARCH ESO ISS PBLA23 END | 48.2 |
| HIERARCH ESO ISS PBL24 START | 85.117 |
| HIERARCH ESO ISS PBL24 END | 84.413 |
| HIERARCH ESO ISS PBLA24 START | 90.81 |
| HIERARCH ESO ISS PBLA24 END | 91.606 |
| HIERARCH ESO ISS PBL34 START | 60.626 |
| HIERARCH ESO ISS PBL34 END | 60.296 |
| HIERARCH ESO ISS PBLA34 START | 121.25 |
| HIERARCH ESO ISS PBLA34 END | 122.229 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008031 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008364 |
| HIERARCH ESO ISS AMBI TEMP | 16.7 |
| HIERARCH ESO ISS AMBI FWHM START | 0.44 |
| HIERARCH ESO ISS AMBI FWHM END | 0.42 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |