Exposure
- ID
- GRAVI.2025-08-07T01:18:34.917_2
- Header ID
- GRAVI.2025-08-07T01:18:34.917
- Date updated
- 2025-08-07 01:35:47 UTC+0000
- Release date
- 2026-08-07 01:35:47 UTC+0000
- UTC Start
- 2025-08-07 01:18:34.917
- UTC End
- 2025-08-07 01:24:34.917
- MJD Start
- 60894.0545708
- MJD End
- 60894.058737466665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004003
- Ambient temperature (°C)
- 14.0
- Seeing (arcsec)
- 1.1749999999999998
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 | 56.4670 | 56.4290 | 25.3000 | 26.0000 |
| U1-U3 | 102.3040 | 102.2270 | 31.7000 | 32.4000 |
| U1-U4 | 130.1960 | 130.1260 | 59.6530 | 60.4190 |
| U2-U3 | 46.6010 | 46.5640 | 39.4000 | 40.1000 |
| U2-U4 | 89.4190 | 89.4250 | 80.5100 | 81.2940 |
| U3-U4 | 62.3860 | 62.4450 | 109.9520 | 110.7150 |
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 | 60894.0545708 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417243 |
| 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 | 56.467 |
| HIERARCH ESO ISS PBL12 END | 56.429 |
| HIERARCH ESO ISS PBLA12 START | 25.3 |
| HIERARCH ESO ISS PBLA12 END | 26.0 |
| HIERARCH ESO ISS PBL13 START | 102.304 |
| HIERARCH ESO ISS PBL13 END | 102.227 |
| HIERARCH ESO ISS PBLA13 START | 31.7 |
| HIERARCH ESO ISS PBLA13 END | 32.4 |
| HIERARCH ESO ISS PBL14 START | 130.196 |
| HIERARCH ESO ISS PBL14 END | 130.126 |
| HIERARCH ESO ISS PBLA14 START | 59.653 |
| HIERARCH ESO ISS PBLA14 END | 60.419 |
| HIERARCH ESO ISS PBL23 START | 46.601 |
| HIERARCH ESO ISS PBL23 END | 46.564 |
| HIERARCH ESO ISS PBLA23 START | 39.4 |
| HIERARCH ESO ISS PBLA23 END | 40.1 |
| HIERARCH ESO ISS PBL24 START | 89.419 |
| HIERARCH ESO ISS PBL24 END | 89.425 |
| HIERARCH ESO ISS PBLA24 START | 80.51 |
| HIERARCH ESO ISS PBLA24 END | 81.294 |
| HIERARCH ESO ISS PBL34 START | 62.386 |
| HIERARCH ESO ISS PBL34 END | 62.445 |
| HIERARCH ESO ISS PBLA34 START | 109.952 |
| HIERARCH ESO ISS PBLA34 END | 110.715 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005014 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002992 |
| HIERARCH ESO ISS AMBI TEMP | 14.0 |
| HIERARCH ESO ISS AMBI FWHM START | 0.97 |
| HIERARCH ESO ISS AMBI FWHM END | 1.38 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |