Exposure
- ID
- GRAVI.2025-08-08T03:03:02.778_2
- Header ID
- GRAVI.2025-08-08T03:03:02.778
- Date updated
- 2025-08-08 03:20:46 UTC+0000
- Release date
- 2026-08-08 03:20:46 UTC+0000
- UTC Start
- 2025-08-08 03:03:02.778
- UTC End
- 2025-08-08 03:09:02.778
- MJD Start
- 60895.12711549
- MJD End
- 60895.13128215667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002112
- Ambient temperature (°C)
- 12.98
- Seeing (arcsec)
- 0.89
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 | 54.5370 | 54.3170 | 35.3000 | 35.7000 |
| U1-U3 | 97.8670 | 97.3580 | 41.6000 | 42.1000 |
| U1-U4 | 120.3630 | 119.1730 | 70.9480 | 71.5360 |
| U2-U3 | 44.0760 | 43.7820 | 49.5000 | 49.9000 |
| U2-U4 | 82.4310 | 81.5550 | 93.6330 | 94.4580 |
| U3-U4 | 59.3740 | 58.9720 | 124.7780 | 125.8350 |
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 | 60895.12711549 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417583 |
| DEC | -29.00709 |
| 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 | 54.537 |
| HIERARCH ESO ISS PBL12 END | 54.317 |
| HIERARCH ESO ISS PBLA12 START | 35.3 |
| HIERARCH ESO ISS PBLA12 END | 35.7 |
| HIERARCH ESO ISS PBL13 START | 97.867 |
| HIERARCH ESO ISS PBL13 END | 97.358 |
| HIERARCH ESO ISS PBLA13 START | 41.6 |
| HIERARCH ESO ISS PBLA13 END | 42.1 |
| HIERARCH ESO ISS PBL14 START | 120.363 |
| HIERARCH ESO ISS PBL14 END | 119.173 |
| HIERARCH ESO ISS PBLA14 START | 70.948 |
| HIERARCH ESO ISS PBLA14 END | 71.536 |
| HIERARCH ESO ISS PBL23 START | 44.076 |
| HIERARCH ESO ISS PBL23 END | 43.782 |
| HIERARCH ESO ISS PBLA23 START | 49.5 |
| HIERARCH ESO ISS PBLA23 END | 49.9 |
| HIERARCH ESO ISS PBL24 START | 82.431 |
| HIERARCH ESO ISS PBL24 END | 81.555 |
| HIERARCH ESO ISS PBLA24 START | 93.633 |
| HIERARCH ESO ISS PBLA24 END | 94.458 |
| HIERARCH ESO ISS PBL34 START | 59.374 |
| HIERARCH ESO ISS PBL34 END | 58.972 |
| HIERARCH ESO ISS PBLA34 START | 124.778 |
| HIERARCH ESO ISS PBLA34 END | 125.835 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002098 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002126 |
| HIERARCH ESO ISS AMBI TEMP | 12.98 |
| HIERARCH ESO ISS AMBI FWHM START | 0.93 |
| HIERARCH ESO ISS AMBI FWHM END | 0.85 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |