Exposure
- ID
- GRAVI.2025-07-08T06:07:08.934_2
- Header ID
- GRAVI.2025-07-08T06:07:08.934
- Date updated
- 2025-07-08 06:25:41 UTC+0000
- Release date
- 2026-07-08 06:25:40 UTC+0000
- UTC Start
- 2025-07-08 06:07:08.934
- UTC End
- 2025-07-08 06:13:08.934
- MJD Start
- 60864.25496451
- MJD End
- 60864.25913117667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.011613
- Ambient temperature (°C)
- 15.62
- Seeing (arcsec)
- 0.275
Observation
- ID
- 68254
- Category
- science
- Program ID
- 115.27WT.003
- Program Title
- THE GALACTIC CENTER WITH GRAVITY(+) - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
- Program Type
- GTO
- PI / COI
- EISENHAUER / GILLESSEN / GENZEL / OTT / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROUSSELET-PER
Target
- ID
- 50720
- Name
- IRS16C
- RA
- 266.4170791666666
- DEC
- -29.00768111111111
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 | 51.8160 | 51.4560 | 39.0000 | 39.3000 |
| U1-U3 | 91.6140 | 90.7930 | 45.2000 | 45.5000 |
| U1-U4 | 105.9880 | 104.1370 | 76.4200 | 76.9670 |
| U2-U3 | 40.4910 | 40.0230 | 53.2000 | 53.5000 |
| U2-U4 | 72.0570 | 70.7590 | 102.3120 | 103.3350 |
| U3-U4 | 54.8970 | 54.3850 | 136.2100 | 137.5690 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.003 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60864.25496451 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416494 |
| DEC | -29.00743 |
| 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 | 51.816 |
| HIERARCH ESO ISS PBL12 END | 51.456 |
| HIERARCH ESO ISS PBLA12 START | 39.0 |
| HIERARCH ESO ISS PBLA12 END | 39.3 |
| HIERARCH ESO ISS PBL13 START | 91.614 |
| HIERARCH ESO ISS PBL13 END | 90.793 |
| HIERARCH ESO ISS PBLA13 START | 45.2 |
| HIERARCH ESO ISS PBLA13 END | 45.5 |
| HIERARCH ESO ISS PBL14 START | 105.988 |
| HIERARCH ESO ISS PBL14 END | 104.137 |
| HIERARCH ESO ISS PBLA14 START | 76.42 |
| HIERARCH ESO ISS PBLA14 END | 76.967 |
| HIERARCH ESO ISS PBL23 START | 40.491 |
| HIERARCH ESO ISS PBL23 END | 40.023 |
| HIERARCH ESO ISS PBLA23 START | 53.2 |
| HIERARCH ESO ISS PBLA23 END | 53.5 |
| HIERARCH ESO ISS PBL24 START | 72.057 |
| HIERARCH ESO ISS PBL24 END | 70.759 |
| HIERARCH ESO ISS PBLA24 START | 102.312 |
| HIERARCH ESO ISS PBLA24 END | 103.335 |
| HIERARCH ESO ISS PBL34 START | 54.897 |
| HIERARCH ESO ISS PBL34 END | 54.385 |
| HIERARCH ESO ISS PBLA34 START | 136.21 |
| HIERARCH ESO ISS PBLA34 END | 137.569 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.010209 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.013017 |
| HIERARCH ESO ISS AMBI TEMP | 15.62 |
| HIERARCH ESO ISS AMBI FWHM START | 0.3 |
| HIERARCH ESO ISS AMBI FWHM END | 0.25 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |