Exposure
- ID
- GRAVI.2025-07-08T00:17:23.044_2
- Header ID
- GRAVI.2025-07-08T00:17:23.044
- Date updated
- 2025-07-08 00:35:43 UTC+0000
- Release date
- 2026-07-08 00:35:43 UTC+0000
- UTC Start
- 2025-07-08 00:17:23.044
- UTC End
- 2025-07-08 00:23:23.044
- MJD Start
- 60864.01207227
- MJD End
- 60864.01623893667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0078
- Ambient temperature (°C)
- 15.76
- Seeing (arcsec)
- 0.58
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 | 56.2310 | 56.2370 | 1.7000 | 2.6000 |
| U1-U3 | 100.7750 | 100.8300 | 6.5000 | 7.5000 |
| U1-U4 | 115.7020 | 116.4480 | 30.2110 | 31.6080 |
| U2-U3 | 44.9960 | 45.0640 | 12.6000 | 13.7000 |
| U2-U4 | 71.5520 | 72.5920 | 52.2760 | 53.6820 |
| U3-U4 | 46.8120 | 47.8160 | 90.1780 | 90.9480 |
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 | 60864.01207227 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416188 |
| DEC | -29.00743 |
| 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 | 56.231 |
| HIERARCH ESO ISS PBL12 END | 56.237 |
| HIERARCH ESO ISS PBLA12 START | 1.7 |
| HIERARCH ESO ISS PBLA12 END | 2.6 |
| HIERARCH ESO ISS PBL13 START | 100.775 |
| HIERARCH ESO ISS PBL13 END | 100.83 |
| HIERARCH ESO ISS PBLA13 START | 6.5 |
| HIERARCH ESO ISS PBLA13 END | 7.5 |
| HIERARCH ESO ISS PBL14 START | 115.702 |
| HIERARCH ESO ISS PBL14 END | 116.448 |
| HIERARCH ESO ISS PBLA14 START | 30.211 |
| HIERARCH ESO ISS PBLA14 END | 31.608 |
| HIERARCH ESO ISS PBL23 START | 44.996 |
| HIERARCH ESO ISS PBL23 END | 45.064 |
| HIERARCH ESO ISS PBLA23 START | 12.6 |
| HIERARCH ESO ISS PBLA23 END | 13.7 |
| HIERARCH ESO ISS PBL24 START | 71.552 |
| HIERARCH ESO ISS PBL24 END | 72.592 |
| HIERARCH ESO ISS PBLA24 START | 52.276 |
| HIERARCH ESO ISS PBLA24 END | 53.682 |
| HIERARCH ESO ISS PBL34 START | 46.812 |
| HIERARCH ESO ISS PBL34 END | 47.816 |
| HIERARCH ESO ISS PBLA34 START | 90.178 |
| HIERARCH ESO ISS PBLA34 END | 90.948 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008387 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007213 |
| HIERARCH ESO ISS AMBI TEMP | 15.76 |
| HIERARCH ESO ISS AMBI FWHM START | 0.59 |
| HIERARCH ESO ISS AMBI FWHM END | 0.57 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |