Exposure
- ID
- GRAVI.2025-08-10T03:09:39.241_2
- Header ID
- GRAVI.2025-08-10T03:09:39.241
- Date updated
- 2025-08-10 03:25:38 UTC+0000
- Release date
- 2026-08-10 03:25:37 UTC+0000
- UTC Start
- 2025-08-10 03:09:39.241
- UTC End
- 2025-08-10 03:15:39.241
- MJD Start
- 60897.13170418
- MJD End
- 60897.135870846665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002986
- Ambient temperature (°C)
- 12.32
- Seeing (arcsec)
- 0.845
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 | 54.0230 | 53.7700 | 36.3000 | 36.7000 |
| U1-U3 | 96.6760 | 96.0940 | 42.6000 | 43.0000 |
| U1-U4 | 117.5870 | 116.2350 | 72.2630 | 72.8410 |
| U2-U3 | 43.3890 | 43.0540 | 50.5000 | 50.9000 |
| U2-U4 | 80.3910 | 79.4030 | 95.5080 | 96.3670 |
| U3-U4 | 58.4440 | 58.0010 | 127.1940 | 128.3180 |
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 | 60897.13170418 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417379 |
| DEC | -29.00671 |
| 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 | 54.023 |
| HIERARCH ESO ISS PBL12 END | 53.77 |
| HIERARCH ESO ISS PBLA12 START | 36.3 |
| HIERARCH ESO ISS PBLA12 END | 36.7 |
| HIERARCH ESO ISS PBL13 START | 96.676 |
| HIERARCH ESO ISS PBL13 END | 96.094 |
| HIERARCH ESO ISS PBLA13 START | 42.6 |
| HIERARCH ESO ISS PBLA13 END | 43.0 |
| HIERARCH ESO ISS PBL14 START | 117.587 |
| HIERARCH ESO ISS PBL14 END | 116.235 |
| HIERARCH ESO ISS PBLA14 START | 72.263 |
| HIERARCH ESO ISS PBLA14 END | 72.841 |
| HIERARCH ESO ISS PBL23 START | 43.389 |
| HIERARCH ESO ISS PBL23 END | 43.054 |
| HIERARCH ESO ISS PBLA23 START | 50.5 |
| HIERARCH ESO ISS PBLA23 END | 50.9 |
| HIERARCH ESO ISS PBL24 START | 80.391 |
| HIERARCH ESO ISS PBL24 END | 79.403 |
| HIERARCH ESO ISS PBLA24 START | 95.508 |
| HIERARCH ESO ISS PBLA24 END | 96.367 |
| HIERARCH ESO ISS PBL34 START | 58.444 |
| HIERARCH ESO ISS PBL34 END | 58.001 |
| HIERARCH ESO ISS PBLA34 START | 127.194 |
| HIERARCH ESO ISS PBLA34 END | 128.318 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003123 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002849 |
| HIERARCH ESO ISS AMBI TEMP | 12.32 |
| HIERARCH ESO ISS AMBI FWHM START | 0.8 |
| HIERARCH ESO ISS AMBI FWHM END | 0.89 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |