Exposure
- ID
- GRAVI.2025-08-10T02:25:27.129_2
- Header ID
- GRAVI.2025-08-10T02:25:27.129
- Date updated
- 2025-08-10 02:40:38 UTC+0000
- Release date
- 2026-08-10 02:40:38 UTC+0000
- UTC Start
- 2025-08-10 02:25:27.129
- UTC End
- 2025-08-10 02:31:27.129
- MJD Start
- 60897.10100844
- MJD End
- 60897.10517510666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.00346
- Ambient temperature (°C)
- 12.23
- Seeing (arcsec)
- 0.765
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 | 55.3820 | 55.2210 | 33.0000 | 33.5000 |
| U1-U3 | 99.8320 | 99.4570 | 39.3000 | 39.9000 |
| U1-U4 | 124.9610 | 124.0860 | 68.1310 | 68.7580 |
| U2-U3 | 45.2110 | 44.9950 | 47.1000 | 47.7000 |
| U2-U4 | 85.8300 | 85.1830 | 89.9440 | 90.7320 |
| U3-U4 | 60.9610 | 60.6570 | 120.1990 | 121.1550 |
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 | 60897.10100844 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417401 |
| DEC | -29.0066 |
| 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 | 55.382 |
| HIERARCH ESO ISS PBL12 END | 55.221 |
| HIERARCH ESO ISS PBLA12 START | 33.0 |
| HIERARCH ESO ISS PBLA12 END | 33.5 |
| HIERARCH ESO ISS PBL13 START | 99.832 |
| HIERARCH ESO ISS PBL13 END | 99.457 |
| HIERARCH ESO ISS PBLA13 START | 39.3 |
| HIERARCH ESO ISS PBLA13 END | 39.9 |
| HIERARCH ESO ISS PBL14 START | 124.961 |
| HIERARCH ESO ISS PBL14 END | 124.086 |
| HIERARCH ESO ISS PBLA14 START | 68.131 |
| HIERARCH ESO ISS PBLA14 END | 68.758 |
| HIERARCH ESO ISS PBL23 START | 45.211 |
| HIERARCH ESO ISS PBL23 END | 44.995 |
| HIERARCH ESO ISS PBLA23 START | 47.1 |
| HIERARCH ESO ISS PBLA23 END | 47.7 |
| HIERARCH ESO ISS PBL24 START | 85.83 |
| HIERARCH ESO ISS PBL24 END | 85.183 |
| HIERARCH ESO ISS PBLA24 START | 89.944 |
| HIERARCH ESO ISS PBLA24 END | 90.732 |
| HIERARCH ESO ISS PBL34 START | 60.961 |
| HIERARCH ESO ISS PBL34 END | 60.657 |
| HIERARCH ESO ISS PBLA34 START | 120.199 |
| HIERARCH ESO ISS PBLA34 END | 121.155 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00346 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00346 |
| HIERARCH ESO ISS AMBI TEMP | 12.23 |
| HIERARCH ESO ISS AMBI FWHM START | 0.75 |
| HIERARCH ESO ISS AMBI FWHM END | 0.78 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |