Exposure
- ID
- GRAVI.2025-08-07T00:49:10.843_2
- Header ID
- GRAVI.2025-08-07T00:49:10.843
- Date updated
- 2025-08-07 01:05:45 UTC+0000
- Release date
- 2026-08-07 01:05:45 UTC+0000
- UTC Start
- 2025-08-07 00:49:10.843
- UTC End
- 2025-08-07 00:55:10.843
- MJD Start
- 60894.03415327
- MJD End
- 60894.03831993666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0048024999999999995
- Ambient temperature (°C)
- 13.84
- Seeing (arcsec)
- 0.935
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 | 56.5550 | 56.5470 | 22.0000 | 22.7000 |
| U1-U3 | 102.4330 | 102.4320 | 28.2000 | 29.0000 |
| U1-U4 | 129.7870 | 129.9760 | 55.9550 | 56.7970 |
| U2-U3 | 46.6240 | 46.6370 | 35.8000 | 36.6000 |
| U2-U4 | 88.7300 | 88.9730 | 76.8370 | 77.6590 |
| U3-U4 | 61.6830 | 61.8990 | 106.5820 | 107.3080 |
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 | 60894.03415327 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417202 |
| DEC | -29.00728 |
| 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 | 56.555 |
| HIERARCH ESO ISS PBL12 END | 56.547 |
| HIERARCH ESO ISS PBLA12 START | 22.0 |
| HIERARCH ESO ISS PBLA12 END | 22.7 |
| HIERARCH ESO ISS PBL13 START | 102.433 |
| HIERARCH ESO ISS PBL13 END | 102.432 |
| HIERARCH ESO ISS PBLA13 START | 28.2 |
| HIERARCH ESO ISS PBLA13 END | 29.0 |
| HIERARCH ESO ISS PBL14 START | 129.787 |
| HIERARCH ESO ISS PBL14 END | 129.976 |
| HIERARCH ESO ISS PBLA14 START | 55.955 |
| HIERARCH ESO ISS PBLA14 END | 56.797 |
| HIERARCH ESO ISS PBL23 START | 46.624 |
| HIERARCH ESO ISS PBL23 END | 46.637 |
| HIERARCH ESO ISS PBLA23 START | 35.8 |
| HIERARCH ESO ISS PBLA23 END | 36.6 |
| HIERARCH ESO ISS PBL24 START | 88.73 |
| HIERARCH ESO ISS PBL24 END | 88.973 |
| HIERARCH ESO ISS PBLA24 START | 76.837 |
| HIERARCH ESO ISS PBLA24 END | 77.659 |
| HIERARCH ESO ISS PBL34 START | 61.683 |
| HIERARCH ESO ISS PBL34 END | 61.899 |
| HIERARCH ESO ISS PBLA34 START | 106.582 |
| HIERARCH ESO ISS PBLA34 END | 107.308 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005121 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004484 |
| HIERARCH ESO ISS AMBI TEMP | 13.84 |
| HIERARCH ESO ISS AMBI FWHM START | 0.91 |
| HIERARCH ESO ISS AMBI FWHM END | 0.96 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |