Exposure
- ID
- GRAVI.2025-07-07T04:14:28.118_2
- Header ID
- GRAVI.2025-07-07T04:14:28.118
- Date updated
- 2025-07-07 04:35:37 UTC+0000
- Release date
- 2026-07-07 04:35:37 UTC+0000
- UTC Start
- 2025-07-07 04:14:28.118
- UTC End
- 2025-07-07 04:20:28.118
- MJD Start
- 60863.17671433
- MJD End
- 60863.18088099667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008537
- Ambient temperature (°C)
- 14.23
- Seeing (arcsec)
- 0.405
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 | 55.8850 | 55.7690 | 30.8000 | 31.4000 |
| U1-U3 | 101.0000 | 100.7330 | 37.2000 | 37.8000 |
| U1-U4 | 127.6590 | 127.0500 | 65.6580 | 66.3180 |
| U2-U3 | 45.8840 | 45.7300 | 45.0000 | 45.6000 |
| U2-U4 | 87.8110 | 87.3680 | 86.9840 | 87.7520 |
| U3-U4 | 61.8820 | 61.6790 | 116.7390 | 117.6170 |
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 | 60863.17671433 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416504 |
| DEC | -29.00747 |
| 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 | 55.885 |
| HIERARCH ESO ISS PBL12 END | 55.769 |
| HIERARCH ESO ISS PBLA12 START | 30.8 |
| HIERARCH ESO ISS PBLA12 END | 31.4 |
| HIERARCH ESO ISS PBL13 START | 101.0 |
| HIERARCH ESO ISS PBL13 END | 100.733 |
| HIERARCH ESO ISS PBLA13 START | 37.2 |
| HIERARCH ESO ISS PBLA13 END | 37.8 |
| HIERARCH ESO ISS PBL14 START | 127.659 |
| HIERARCH ESO ISS PBL14 END | 127.05 |
| HIERARCH ESO ISS PBLA14 START | 65.658 |
| HIERARCH ESO ISS PBLA14 END | 66.318 |
| HIERARCH ESO ISS PBL23 START | 45.884 |
| HIERARCH ESO ISS PBL23 END | 45.73 |
| HIERARCH ESO ISS PBLA23 START | 45.0 |
| HIERARCH ESO ISS PBLA23 END | 45.6 |
| HIERARCH ESO ISS PBL24 START | 87.811 |
| HIERARCH ESO ISS PBL24 END | 87.368 |
| HIERARCH ESO ISS PBLA24 START | 86.984 |
| HIERARCH ESO ISS PBLA24 END | 87.752 |
| HIERARCH ESO ISS PBL34 START | 61.882 |
| HIERARCH ESO ISS PBL34 END | 61.679 |
| HIERARCH ESO ISS PBLA34 START | 116.739 |
| HIERARCH ESO ISS PBLA34 END | 117.617 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008658 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008416 |
| HIERARCH ESO ISS AMBI TEMP | 14.23 |
| HIERARCH ESO ISS AMBI FWHM START | 0.4 |
| HIERARCH ESO ISS AMBI FWHM END | 0.41 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |