Exposure
- ID
- GRAVI.2025-08-07T02:19:02.071_2
- Header ID
- GRAVI.2025-08-07T02:19:02.071
- Date updated
- 2025-08-07 02:35:49 UTC+0000
- Release date
- 2026-08-07 02:35:49 UTC+0000
- UTC Start
- 2025-08-07 02:19:02.071
- UTC End
- 2025-08-07 02:25:02.071
- MJD Start
- 60894.09655175
- MJD End
- 60894.10071841667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0027935
- Ambient temperature (°C)
- 13.29
- Seeing (arcsec)
- 1.38
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 | 55.7700 | 55.6430 | 31.4000 | 32.0000 |
| U1-U3 | 100.7340 | 100.4400 | 37.8000 | 38.3000 |
| U1-U4 | 127.0530 | 126.3770 | 66.3150 | 66.9650 |
| U2-U3 | 45.7310 | 45.5620 | 45.6000 | 46.1000 |
| U2-U4 | 87.3700 | 86.8750 | 87.7490 | 88.5210 |
| U3-U4 | 61.6800 | 61.4510 | 117.6130 | 118.5090 |
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 | 60894.09655175 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417141 |
| DEC | -29.00712 |
| 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 | 55.77 |
| HIERARCH ESO ISS PBL12 END | 55.643 |
| HIERARCH ESO ISS PBLA12 START | 31.4 |
| HIERARCH ESO ISS PBLA12 END | 32.0 |
| HIERARCH ESO ISS PBL13 START | 100.734 |
| HIERARCH ESO ISS PBL13 END | 100.44 |
| HIERARCH ESO ISS PBLA13 START | 37.8 |
| HIERARCH ESO ISS PBLA13 END | 38.3 |
| HIERARCH ESO ISS PBL14 START | 127.053 |
| HIERARCH ESO ISS PBL14 END | 126.377 |
| HIERARCH ESO ISS PBLA14 START | 66.315 |
| HIERARCH ESO ISS PBLA14 END | 66.965 |
| HIERARCH ESO ISS PBL23 START | 45.731 |
| HIERARCH ESO ISS PBL23 END | 45.562 |
| HIERARCH ESO ISS PBLA23 START | 45.6 |
| HIERARCH ESO ISS PBLA23 END | 46.1 |
| HIERARCH ESO ISS PBL24 START | 87.37 |
| HIERARCH ESO ISS PBL24 END | 86.875 |
| HIERARCH ESO ISS PBLA24 START | 87.749 |
| HIERARCH ESO ISS PBLA24 END | 88.521 |
| HIERARCH ESO ISS PBL34 START | 61.68 |
| HIERARCH ESO ISS PBL34 END | 61.451 |
| HIERARCH ESO ISS PBLA34 START | 117.613 |
| HIERARCH ESO ISS PBLA34 END | 118.509 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003314 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002273 |
| HIERARCH ESO ISS AMBI TEMP | 13.29 |
| HIERARCH ESO ISS AMBI FWHM START | 1.17 |
| HIERARCH ESO ISS AMBI FWHM END | 1.59 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |