Exposure
- ID
- GRAVI.2025-08-07T03:02:05.181_2
- Header ID
- GRAVI.2025-08-07T03:02:05.181
- Date updated
- 2025-08-07 03:15:54 UTC+0000
- Release date
- 2026-08-07 03:15:54 UTC+0000
- UTC Start
- 2025-08-07 03:02:05.181
- UTC End
- 2025-08-07 03:08:05.181
- MJD Start
- 60894.12644885
- MJD End
- 60894.13061551667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004205
- Ambient temperature (°C)
- 13.26
- Seeing (arcsec)
- 0.8600000000000001
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 | 54.6940 | 54.4850 | 34.9000 | 35.4000 |
| U1-U3 | 98.2330 | 97.7460 | 41.3000 | 41.7000 |
| U1-U4 | 121.2180 | 120.0810 | 70.4970 | 71.0900 |
| U2-U3 | 44.2870 | 44.0060 | 49.1000 | 49.6000 |
| U2-U4 | 83.0610 | 82.2220 | 93.0150 | 93.8320 |
| U3-U4 | 59.6660 | 59.2780 | 123.9930 | 125.0320 |
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 | 60894.12644885 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417164 |
| DEC | -29.00716 |
| 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 | 54.694 |
| HIERARCH ESO ISS PBL12 END | 54.485 |
| HIERARCH ESO ISS PBLA12 START | 34.9 |
| HIERARCH ESO ISS PBLA12 END | 35.4 |
| HIERARCH ESO ISS PBL13 START | 98.233 |
| HIERARCH ESO ISS PBL13 END | 97.746 |
| HIERARCH ESO ISS PBLA13 START | 41.3 |
| HIERARCH ESO ISS PBLA13 END | 41.7 |
| HIERARCH ESO ISS PBL14 START | 121.218 |
| HIERARCH ESO ISS PBL14 END | 120.081 |
| HIERARCH ESO ISS PBLA14 START | 70.497 |
| HIERARCH ESO ISS PBLA14 END | 71.09 |
| HIERARCH ESO ISS PBL23 START | 44.287 |
| HIERARCH ESO ISS PBL23 END | 44.006 |
| HIERARCH ESO ISS PBLA23 START | 49.1 |
| HIERARCH ESO ISS PBLA23 END | 49.6 |
| HIERARCH ESO ISS PBL24 START | 83.061 |
| HIERARCH ESO ISS PBL24 END | 82.222 |
| HIERARCH ESO ISS PBLA24 START | 93.015 |
| HIERARCH ESO ISS PBLA24 END | 93.832 |
| HIERARCH ESO ISS PBL34 START | 59.666 |
| HIERARCH ESO ISS PBL34 END | 59.278 |
| HIERARCH ESO ISS PBLA34 START | 123.993 |
| HIERARCH ESO ISS PBLA34 END | 125.032 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004113 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004297 |
| HIERARCH ESO ISS AMBI TEMP | 13.26 |
| HIERARCH ESO ISS AMBI FWHM START | 0.91 |
| HIERARCH ESO ISS AMBI FWHM END | 0.81 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |