Exposure
- ID
- GRAVI.2025-07-08T02:53:56.442_2
- Header ID
- GRAVI.2025-07-08T02:53:56.442
- Date updated
- 2025-07-08 03:10:44 UTC+0000
- Release date
- 2026-07-08 03:10:44 UTC+0000
- UTC Start
- 2025-07-08 02:53:56.442
- UTC End
- 2025-07-08 02:59:56.442
- MJD Start
- 60864.12079215
- MJD End
- 60864.12495881667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.017236500000000002
- Ambient temperature (°C)
- 15.46
- Seeing (arcsec)
- 0.41500000000000004
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 | 56.5460 | 56.5310 | 22.8000 | 23.5000 |
| U1-U3 | 102.4320 | 102.4160 | 29.0000 | 29.8000 |
| U1-U4 | 129.9840 | 130.1150 | 56.8340 | 57.6560 |
| U2-U3 | 46.6380 | 46.6410 | 36.7000 | 37.4000 |
| U2-U4 | 88.9840 | 89.1740 | 77.6950 | 78.5060 |
| U3-U4 | 61.9100 | 62.0890 | 107.3400 | 108.0710 |
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 | 60864.12079215 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416182 |
| DEC | -29.0074 |
| 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 | 56.546 |
| HIERARCH ESO ISS PBL12 END | 56.531 |
| HIERARCH ESO ISS PBLA12 START | 22.8 |
| HIERARCH ESO ISS PBLA12 END | 23.5 |
| HIERARCH ESO ISS PBL13 START | 102.432 |
| HIERARCH ESO ISS PBL13 END | 102.416 |
| HIERARCH ESO ISS PBLA13 START | 29.0 |
| HIERARCH ESO ISS PBLA13 END | 29.8 |
| HIERARCH ESO ISS PBL14 START | 129.984 |
| HIERARCH ESO ISS PBL14 END | 130.115 |
| HIERARCH ESO ISS PBLA14 START | 56.834 |
| HIERARCH ESO ISS PBLA14 END | 57.656 |
| HIERARCH ESO ISS PBL23 START | 46.638 |
| HIERARCH ESO ISS PBL23 END | 46.641 |
| HIERARCH ESO ISS PBLA23 START | 36.7 |
| HIERARCH ESO ISS PBLA23 END | 37.4 |
| HIERARCH ESO ISS PBL24 START | 88.984 |
| HIERARCH ESO ISS PBL24 END | 89.174 |
| HIERARCH ESO ISS PBLA24 START | 77.695 |
| HIERARCH ESO ISS PBLA24 END | 78.506 |
| HIERARCH ESO ISS PBL34 START | 61.91 |
| HIERARCH ESO ISS PBL34 END | 62.089 |
| HIERARCH ESO ISS PBLA34 START | 107.34 |
| HIERARCH ESO ISS PBLA34 END | 108.071 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.017748 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.016725 |
| HIERARCH ESO ISS AMBI TEMP | 15.46 |
| HIERARCH ESO ISS AMBI FWHM START | 0.38 |
| HIERARCH ESO ISS AMBI FWHM END | 0.45 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |