Exposure
- ID
- GRAVI.2025-08-07T03:24:02.236_2
- Header ID
- GRAVI.2025-08-07T03:24:02.236
- Date updated
- 2025-08-07 03:40:51 UTC+0000
- Release date
- 2026-08-07 03:40:51 UTC+0000
- UTC Start
- 2025-08-07 03:24:02.236
- UTC End
- 2025-08-07 03:30:02.236
- MJD Start
- 60894.14169255
- MJD End
- 60894.14585921667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004692999999999999
- Ambient temperature (°C)
- 13.03
- Seeing (arcsec)
- 0.915
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 | 53.9220 | 53.6660 | 36.5000 | 36.9000 |
| U1-U3 | 96.4450 | 95.8520 | 42.8000 | 43.2000 |
| U1-U4 | 117.0490 | 115.6770 | 72.4980 | 73.0700 |
| U2-U3 | 43.2560 | 42.9150 | 50.6000 | 51.1000 |
| U2-U4 | 79.9970 | 78.9960 | 95.8530 | 96.7150 |
| U3-U4 | 58.2670 | 57.8210 | 127.6450 | 128.7740 |
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 | 60894.14169255 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417167 |
| DEC | -29.00718 |
| 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 | 53.922 |
| HIERARCH ESO ISS PBL12 END | 53.666 |
| HIERARCH ESO ISS PBLA12 START | 36.5 |
| HIERARCH ESO ISS PBLA12 END | 36.9 |
| HIERARCH ESO ISS PBL13 START | 96.445 |
| HIERARCH ESO ISS PBL13 END | 95.852 |
| HIERARCH ESO ISS PBLA13 START | 42.8 |
| HIERARCH ESO ISS PBLA13 END | 43.2 |
| HIERARCH ESO ISS PBL14 START | 117.049 |
| HIERARCH ESO ISS PBL14 END | 115.677 |
| HIERARCH ESO ISS PBLA14 START | 72.498 |
| HIERARCH ESO ISS PBLA14 END | 73.07 |
| HIERARCH ESO ISS PBL23 START | 43.256 |
| HIERARCH ESO ISS PBL23 END | 42.915 |
| HIERARCH ESO ISS PBLA23 START | 50.6 |
| HIERARCH ESO ISS PBLA23 END | 51.1 |
| HIERARCH ESO ISS PBL24 START | 79.997 |
| HIERARCH ESO ISS PBL24 END | 78.996 |
| HIERARCH ESO ISS PBLA24 START | 95.853 |
| HIERARCH ESO ISS PBLA24 END | 96.715 |
| HIERARCH ESO ISS PBL34 START | 58.267 |
| HIERARCH ESO ISS PBL34 END | 57.821 |
| HIERARCH ESO ISS PBLA34 START | 127.645 |
| HIERARCH ESO ISS PBLA34 END | 128.774 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004748 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004638 |
| HIERARCH ESO ISS AMBI TEMP | 13.03 |
| HIERARCH ESO ISS AMBI FWHM START | 0.86 |
| HIERARCH ESO ISS AMBI FWHM END | 0.97 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |