Exposure
- ID
- GRAVI.2025-08-10T03:24:09.279_2
- Header ID
- GRAVI.2025-08-10T03:24:09.279
- Date updated
- 2025-08-10 03:40:38 UTC+0000
- Release date
- 2026-08-10 03:40:38 UTC+0000
- UTC Start
- 2025-08-10 03:24:09.279
- UTC End
- 2025-08-10 03:30:09.279
- MJD Start
- 60897.14177406
- MJD End
- 60897.14594072667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002634
- Ambient temperature (°C)
- 12.31
- Seeing (arcsec)
- 1.0750000000000002
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 | 53.4370 | 53.1520 | 37.2000 | 37.6000 |
| U1-U3 | 95.3250 | 94.6710 | 43.5000 | 43.9000 |
| U1-U4 | 114.4590 | 112.9520 | 73.5510 | 74.1170 |
| U2-U3 | 42.6130 | 42.2370 | 51.4000 | 51.8000 |
| U2-U4 | 78.1110 | 77.0210 | 97.4580 | 98.3560 |
| U3-U4 | 57.4310 | 56.9580 | 129.7530 | 130.9420 |
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 | 60897.14177406 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.41737 |
| DEC | -29.00674 |
| 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 | 53.437 |
| HIERARCH ESO ISS PBL12 END | 53.152 |
| HIERARCH ESO ISS PBLA12 START | 37.2 |
| HIERARCH ESO ISS PBLA12 END | 37.6 |
| HIERARCH ESO ISS PBL13 START | 95.325 |
| HIERARCH ESO ISS PBL13 END | 94.671 |
| HIERARCH ESO ISS PBLA13 START | 43.5 |
| HIERARCH ESO ISS PBLA13 END | 43.9 |
| HIERARCH ESO ISS PBL14 START | 114.459 |
| HIERARCH ESO ISS PBL14 END | 112.952 |
| HIERARCH ESO ISS PBLA14 START | 73.551 |
| HIERARCH ESO ISS PBLA14 END | 74.117 |
| HIERARCH ESO ISS PBL23 START | 42.613 |
| HIERARCH ESO ISS PBL23 END | 42.237 |
| HIERARCH ESO ISS PBLA23 START | 51.4 |
| HIERARCH ESO ISS PBLA23 END | 51.8 |
| HIERARCH ESO ISS PBL24 START | 78.111 |
| HIERARCH ESO ISS PBL24 END | 77.021 |
| HIERARCH ESO ISS PBLA24 START | 97.458 |
| HIERARCH ESO ISS PBLA24 END | 98.356 |
| HIERARCH ESO ISS PBL34 START | 57.431 |
| HIERARCH ESO ISS PBL34 END | 56.958 |
| HIERARCH ESO ISS PBLA34 START | 129.753 |
| HIERARCH ESO ISS PBLA34 END | 130.942 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002931 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002337 |
| HIERARCH ESO ISS AMBI TEMP | 12.31 |
| HIERARCH ESO ISS AMBI FWHM START | 1.07 |
| HIERARCH ESO ISS AMBI FWHM END | 1.08 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |