Exposure
- ID
- GRAVI.2025-07-08T04:23:11.669_2
- Header ID
- GRAVI.2025-07-08T04:23:11.669
- Date updated
- 2025-07-08 04:40:44 UTC+0000
- Release date
- 2026-07-08 04:40:43 UTC+0000
- UTC Start
- 2025-07-08 04:23:11.669
- UTC End
- 2025-07-08 04:29:11.669
- MJD Start
- 60864.18277395
- MJD End
- 60864.186940616666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008986000000000001
- Ambient temperature (°C)
- 15.79
- Seeing (arcsec)
- 0.30000000000000004
Observation
- ID
- 68254
- Category
- science
- Program ID
- 115.27WT.003
- 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
- 50720
- Name
- IRS16C
- RA
- 266.4170791666666
- 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 | 55.6470 | 55.5090 | 31.9000 | 32.5000 |
| U1-U3 | 100.4490 | 100.1290 | 38.3000 | 38.9000 |
| U1-U4 | 126.3970 | 125.6540 | 66.9450 | 67.5860 |
| U2-U3 | 45.5670 | 45.3820 | 46.1000 | 46.7000 |
| U2-U4 | 86.8900 | 86.3430 | 88.4960 | 89.2720 |
| U3-U4 | 61.4580 | 61.2020 | 118.4810 | 119.3950 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.003 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60864.18277395 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.41648 |
| DEC | -29.00737 |
| 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 | 55.647 |
| HIERARCH ESO ISS PBL12 END | 55.509 |
| HIERARCH ESO ISS PBLA12 START | 31.9 |
| HIERARCH ESO ISS PBLA12 END | 32.5 |
| HIERARCH ESO ISS PBL13 START | 100.449 |
| HIERARCH ESO ISS PBL13 END | 100.129 |
| HIERARCH ESO ISS PBLA13 START | 38.3 |
| HIERARCH ESO ISS PBLA13 END | 38.9 |
| HIERARCH ESO ISS PBL14 START | 126.397 |
| HIERARCH ESO ISS PBL14 END | 125.654 |
| HIERARCH ESO ISS PBLA14 START | 66.945 |
| HIERARCH ESO ISS PBLA14 END | 67.586 |
| HIERARCH ESO ISS PBL23 START | 45.567 |
| HIERARCH ESO ISS PBL23 END | 45.382 |
| HIERARCH ESO ISS PBLA23 START | 46.1 |
| HIERARCH ESO ISS PBLA23 END | 46.7 |
| HIERARCH ESO ISS PBL24 START | 86.89 |
| HIERARCH ESO ISS PBL24 END | 86.343 |
| HIERARCH ESO ISS PBLA24 START | 88.496 |
| HIERARCH ESO ISS PBLA24 END | 89.272 |
| HIERARCH ESO ISS PBL34 START | 61.458 |
| HIERARCH ESO ISS PBL34 END | 61.202 |
| HIERARCH ESO ISS PBLA34 START | 118.481 |
| HIERARCH ESO ISS PBLA34 END | 119.395 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008292 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00968 |
| HIERARCH ESO ISS AMBI TEMP | 15.79 |
| HIERARCH ESO ISS AMBI FWHM START | 0.32 |
| HIERARCH ESO ISS AMBI FWHM END | 0.28 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |