Exposure
- ID
- GRAVI.2025-08-07T00:11:37.747_2
- Header ID
- GRAVI.2025-08-07T00:11:37.747
- Date updated
- 2025-08-07 00:30:46 UTC+0000
- Release date
- 2026-08-07 00:30:46 UTC+0000
- UTC Start
- 2025-08-07 00:11:37.747
- UTC End
- 2025-08-07 00:17:37.747
- MJD Start
- 60894.00807577
- MJD End
- 60894.012242436664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0071265
- Ambient temperature (°C)
- 14.23
- Seeing (arcsec)
- 0.725
Observation
- ID
- 69325
- Category
- science
- Program ID
- 115.27WT.004
- 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
- 51518
- Name
- IRS16C
- RA
- 266.417075
- 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 | 56.5220 | 56.5360 | 17.3000 | 18.1000 |
| U1-U3 | 102.1960 | 102.2600 | 23.4000 | 24.2000 |
| U1-U4 | 127.7230 | 128.1850 | 50.6980 | 51.6470 |
| U2-U3 | 46.3790 | 46.4380 | 30.8000 | 31.7000 |
| U2-U4 | 86.3460 | 86.8680 | 71.8270 | 72.7190 |
| U3-U4 | 59.7170 | 60.1400 | 102.4920 | 103.1820 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60894.00807577 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417191 |
| DEC | -29.00731 |
| 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 | 56.522 |
| HIERARCH ESO ISS PBL12 END | 56.536 |
| HIERARCH ESO ISS PBLA12 START | 17.3 |
| HIERARCH ESO ISS PBLA12 END | 18.1 |
| HIERARCH ESO ISS PBL13 START | 102.196 |
| HIERARCH ESO ISS PBL13 END | 102.26 |
| HIERARCH ESO ISS PBLA13 START | 23.4 |
| HIERARCH ESO ISS PBLA13 END | 24.2 |
| HIERARCH ESO ISS PBL14 START | 127.723 |
| HIERARCH ESO ISS PBL14 END | 128.185 |
| HIERARCH ESO ISS PBLA14 START | 50.698 |
| HIERARCH ESO ISS PBLA14 END | 51.647 |
| HIERARCH ESO ISS PBL23 START | 46.379 |
| HIERARCH ESO ISS PBL23 END | 46.438 |
| HIERARCH ESO ISS PBLA23 START | 30.8 |
| HIERARCH ESO ISS PBLA23 END | 31.7 |
| HIERARCH ESO ISS PBL24 START | 86.346 |
| HIERARCH ESO ISS PBL24 END | 86.868 |
| HIERARCH ESO ISS PBLA24 START | 71.827 |
| HIERARCH ESO ISS PBLA24 END | 72.719 |
| HIERARCH ESO ISS PBL34 START | 59.717 |
| HIERARCH ESO ISS PBL34 END | 60.14 |
| HIERARCH ESO ISS PBLA34 START | 102.492 |
| HIERARCH ESO ISS PBLA34 END | 103.182 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007574 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006679 |
| HIERARCH ESO ISS AMBI TEMP | 14.23 |
| HIERARCH ESO ISS AMBI FWHM START | 0.71 |
| HIERARCH ESO ISS AMBI FWHM END | 0.74 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |