Exposure
- ID
- GRAVI.2025-08-08T03:10:23.797_2
- Header ID
- GRAVI.2025-08-08T03:10:23.797
- Date updated
- 2025-08-08 03:25:42 UTC+0000
- Release date
- 2026-08-08 03:25:41 UTC+0000
- UTC Start
- 2025-08-08 03:10:23.797
- UTC End
- 2025-08-08 03:16:23.797
- MJD Start
- 60895.13221987
- MJD End
- 60895.136386536666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002091
- Ambient temperature (°C)
- 12.91
- Seeing (arcsec)
- 0.865
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 | 54.2850 | 54.0480 | 35.8000 | 36.2000 |
| U1-U3 | 97.2840 | 96.7360 | 42.1000 | 42.6000 |
| U1-U4 | 119.0020 | 117.7260 | 71.6180 | 72.2030 |
| U2-U3 | 43.7390 | 43.4240 | 50.0000 | 50.4000 |
| U2-U4 | 81.4280 | 80.4930 | 94.5750 | 95.4190 |
| U3-U4 | 58.9140 | 58.4900 | 125.9850 | 127.0780 |
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 | 60895.13221987 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417585 |
| DEC | -29.00713 |
| 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 | 54.285 |
| HIERARCH ESO ISS PBL12 END | 54.048 |
| HIERARCH ESO ISS PBLA12 START | 35.8 |
| HIERARCH ESO ISS PBLA12 END | 36.2 |
| HIERARCH ESO ISS PBL13 START | 97.284 |
| HIERARCH ESO ISS PBL13 END | 96.736 |
| HIERARCH ESO ISS PBLA13 START | 42.1 |
| HIERARCH ESO ISS PBLA13 END | 42.6 |
| HIERARCH ESO ISS PBL14 START | 119.002 |
| HIERARCH ESO ISS PBL14 END | 117.726 |
| HIERARCH ESO ISS PBLA14 START | 71.618 |
| HIERARCH ESO ISS PBLA14 END | 72.203 |
| HIERARCH ESO ISS PBL23 START | 43.739 |
| HIERARCH ESO ISS PBL23 END | 43.424 |
| HIERARCH ESO ISS PBLA23 START | 50.0 |
| HIERARCH ESO ISS PBLA23 END | 50.4 |
| HIERARCH ESO ISS PBL24 START | 81.428 |
| HIERARCH ESO ISS PBL24 END | 80.493 |
| HIERARCH ESO ISS PBLA24 START | 94.575 |
| HIERARCH ESO ISS PBLA24 END | 95.419 |
| HIERARCH ESO ISS PBL34 START | 58.914 |
| HIERARCH ESO ISS PBL34 END | 58.49 |
| HIERARCH ESO ISS PBLA34 START | 125.985 |
| HIERARCH ESO ISS PBLA34 END | 127.078 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002129 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002053 |
| HIERARCH ESO ISS AMBI TEMP | 12.91 |
| HIERARCH ESO ISS AMBI FWHM START | 0.91 |
| HIERARCH ESO ISS AMBI FWHM END | 0.82 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |