Exposure
- ID
- GRAVI.2025-08-07T02:26:02.089_2
- Header ID
- GRAVI.2025-08-07T02:26:02.089
- Date updated
- 2025-08-07 02:40:53 UTC+0000
- Release date
- 2026-08-07 02:40:53 UTC+0000
- UTC Start
- 2025-08-07 02:26:02.089
- UTC End
- 2025-08-07 02:32:02.089
- MJD Start
- 60894.10141307
- MJD End
- 60894.105579736664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0025185
- Ambient temperature (°C)
- 13.39
- Seeing (arcsec)
- 1.37
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 | 55.6310 | 55.4910 | 32.0000 | 32.6000 |
| U1-U3 | 100.4110 | 100.0860 | 38.4000 | 38.9000 |
| U1-U4 | 126.3100 | 125.5550 | 67.0260 | 67.6680 |
| U2-U3 | 45.5450 | 45.3580 | 46.2000 | 46.7000 |
| U2-U4 | 86.8260 | 86.2690 | 88.5930 | 89.3720 |
| U3-U4 | 61.4280 | 61.1680 | 118.5940 | 119.5150 |
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 | 60894.10141307 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417149 |
| DEC | -29.00712 |
| 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 | 55.631 |
| HIERARCH ESO ISS PBL12 END | 55.491 |
| HIERARCH ESO ISS PBLA12 START | 32.0 |
| HIERARCH ESO ISS PBLA12 END | 32.6 |
| HIERARCH ESO ISS PBL13 START | 100.411 |
| HIERARCH ESO ISS PBL13 END | 100.086 |
| HIERARCH ESO ISS PBLA13 START | 38.4 |
| HIERARCH ESO ISS PBLA13 END | 38.9 |
| HIERARCH ESO ISS PBL14 START | 126.31 |
| HIERARCH ESO ISS PBL14 END | 125.555 |
| HIERARCH ESO ISS PBLA14 START | 67.026 |
| HIERARCH ESO ISS PBLA14 END | 67.668 |
| HIERARCH ESO ISS PBL23 START | 45.545 |
| HIERARCH ESO ISS PBL23 END | 45.358 |
| HIERARCH ESO ISS PBLA23 START | 46.2 |
| HIERARCH ESO ISS PBLA23 END | 46.7 |
| HIERARCH ESO ISS PBL24 START | 86.826 |
| HIERARCH ESO ISS PBL24 END | 86.269 |
| HIERARCH ESO ISS PBLA24 START | 88.593 |
| HIERARCH ESO ISS PBLA24 END | 89.372 |
| HIERARCH ESO ISS PBL34 START | 61.428 |
| HIERARCH ESO ISS PBL34 END | 61.168 |
| HIERARCH ESO ISS PBLA34 START | 118.594 |
| HIERARCH ESO ISS PBLA34 END | 119.515 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002273 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002764 |
| HIERARCH ESO ISS AMBI TEMP | 13.39 |
| HIERARCH ESO ISS AMBI FWHM START | 1.5 |
| HIERARCH ESO ISS AMBI FWHM END | 1.24 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |