Exposure
- ID
- GRAVI.2025-05-12T09:06:59.041_2
- Header ID
- GRAVI.2025-05-12T09:06:59.041
- Date updated
- 2025-05-12 19:50:48 UTC+0000
- Release date
- 2026-05-12 19:50:47 UTC+0000
- UTC Start
- 2025-05-12 09:06:59.041
- UTC End
- 2025-05-12 09:12:59.041
- MJD Start
- 60807.37985001
- MJD End
- 60807.38401667667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008178000000000001
- Ambient temperature (°C)
- 17.44
- Seeing (arcsec)
- 0.335
Observation
- ID
- 67241
- Category
- science
- Program ID
- 115.27WT.001
- 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
- 45257
- Name
- IRS16C
- RA
- 266.4170791666666
- DEC
- -29.007681388888887
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 | 53.8880 | 53.6280 | 36.5000 | 36.9000 |
| U1-U3 | 96.3650 | 95.7650 | 42.8000 | 43.2000 |
| U1-U4 | 116.8640 | 115.4740 | 72.5760 | 73.1510 |
| U2-U3 | 43.2100 | 42.8650 | 50.7000 | 51.1000 |
| U2-U4 | 79.8620 | 78.8490 | 95.9710 | 96.8390 |
| U3-U4 | 58.2060 | 57.7550 | 127.7980 | 128.9370 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60807.37985001 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416447 |
| DEC | -29.00752 |
| 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 | 53.888 |
| HIERARCH ESO ISS PBL12 END | 53.628 |
| HIERARCH ESO ISS PBLA12 START | 36.5 |
| HIERARCH ESO ISS PBLA12 END | 36.9 |
| HIERARCH ESO ISS PBL13 START | 96.365 |
| HIERARCH ESO ISS PBL13 END | 95.765 |
| HIERARCH ESO ISS PBLA13 START | 42.8 |
| HIERARCH ESO ISS PBLA13 END | 43.2 |
| HIERARCH ESO ISS PBL14 START | 116.864 |
| HIERARCH ESO ISS PBL14 END | 115.474 |
| HIERARCH ESO ISS PBLA14 START | 72.576 |
| HIERARCH ESO ISS PBLA14 END | 73.151 |
| HIERARCH ESO ISS PBL23 START | 43.21 |
| HIERARCH ESO ISS PBL23 END | 42.865 |
| HIERARCH ESO ISS PBLA23 START | 50.7 |
| HIERARCH ESO ISS PBLA23 END | 51.1 |
| HIERARCH ESO ISS PBL24 START | 79.862 |
| HIERARCH ESO ISS PBL24 END | 78.849 |
| HIERARCH ESO ISS PBLA24 START | 95.971 |
| HIERARCH ESO ISS PBLA24 END | 96.839 |
| HIERARCH ESO ISS PBL34 START | 58.206 |
| HIERARCH ESO ISS PBL34 END | 57.755 |
| HIERARCH ESO ISS PBLA34 START | 127.798 |
| HIERARCH ESO ISS PBLA34 END | 128.937 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008484 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007872 |
| HIERARCH ESO ISS AMBI TEMP | 17.44 |
| HIERARCH ESO ISS AMBI FWHM START | 0.33 |
| HIERARCH ESO ISS AMBI FWHM END | 0.34 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |