Exposure
- ID
- GRAVI.2025-08-08T01:54:29.604_2
- Header ID
- GRAVI.2025-08-08T01:54:29.604
- Date updated
- 2025-08-08 02:10:37 UTC+0000
- Release date
- 2026-08-08 02:10:37 UTC+0000
- UTC Start
- 2025-08-08 01:54:29.604
- UTC End
- 2025-08-08 02:00:29.604
- MJD Start
- 60895.0795093
- MJD End
- 60895.08367596666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002524
- Ambient temperature (°C)
- 13.13
- Seeing (arcsec)
- 0.9650000000000001
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 | 56.1010 | 56.0090 | 29.5000 | 30.1000 |
| U1-U3 | 101.5000 | 101.2870 | 35.8000 | 36.5000 |
| U1-U4 | 128.7670 | 128.3030 | 64.1650 | 64.8520 |
| U2-U3 | 46.1680 | 46.0480 | 43.6000 | 44.2000 |
| U2-U4 | 88.6000 | 88.2740 | 85.2940 | 86.0630 |
| U3-U4 | 62.2270 | 62.0880 | 114.8610 | 115.7060 |
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 | 60895.0795093 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417365 |
| DEC | -29.00667 |
| 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 | 56.101 |
| HIERARCH ESO ISS PBL12 END | 56.009 |
| HIERARCH ESO ISS PBLA12 START | 29.5 |
| HIERARCH ESO ISS PBLA12 END | 30.1 |
| HIERARCH ESO ISS PBL13 START | 101.5 |
| HIERARCH ESO ISS PBL13 END | 101.287 |
| HIERARCH ESO ISS PBLA13 START | 35.8 |
| HIERARCH ESO ISS PBLA13 END | 36.5 |
| HIERARCH ESO ISS PBL14 START | 128.767 |
| HIERARCH ESO ISS PBL14 END | 128.303 |
| HIERARCH ESO ISS PBLA14 START | 64.165 |
| HIERARCH ESO ISS PBLA14 END | 64.852 |
| HIERARCH ESO ISS PBL23 START | 46.168 |
| HIERARCH ESO ISS PBL23 END | 46.048 |
| HIERARCH ESO ISS PBLA23 START | 43.6 |
| HIERARCH ESO ISS PBLA23 END | 44.2 |
| HIERARCH ESO ISS PBL24 START | 88.6 |
| HIERARCH ESO ISS PBL24 END | 88.274 |
| HIERARCH ESO ISS PBLA24 START | 85.294 |
| HIERARCH ESO ISS PBLA24 END | 86.063 |
| HIERARCH ESO ISS PBL34 START | 62.227 |
| HIERARCH ESO ISS PBL34 END | 62.088 |
| HIERARCH ESO ISS PBLA34 START | 114.861 |
| HIERARCH ESO ISS PBLA34 END | 115.706 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002487 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002561 |
| HIERARCH ESO ISS AMBI TEMP | 13.13 |
| HIERARCH ESO ISS AMBI FWHM START | 1.01 |
| HIERARCH ESO ISS AMBI FWHM END | 0.92 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |