3-day Schedule
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This page shows 3 days of the Chandra schedule, either side of today, and the total science exposure time for these observations is 4 days and 11 hours. The size of the circles indicate the exposure time, and the color shows whether the observation has been done, is running now, or is in the future; the same colors are used in the table below. For repeated observations it can be hard to make out what is going on, since the circles overlap! The shaded regions trace the Milky Way galaxy. The points are plotted in the Equatorial coordinate system, using the Aitoff projection
.
| Target | Object type | Exposure time | Start | Instrument | Joint with | Turnaround | Constraints | Right Ascension | Declination | Constellation |
|---|---|---|---|---|---|---|---|---|---|---|
| GRB260114A | Unidentified | 6 hours and 52 minutes | 3 days ago | ACIS-S | NRAO,JWST | Intermediate | Time Critical, Monitoring | 04h 58m 23.5s | -08° 00' 51.9" | Eri |
| BOSS0210W | Unidentified | 2 hours and 46 minutes | 3 days ago | ACIS-I | n/a | None | n/a | 02h 10m 60.0s | +00° 46' 48.0" | Cet |
| Abell 795 | Cluster of Galaxies | 2 hours and 45 minutes | 3 days ago | ACIS-S | n/a | None | n/a | 09h 24m 05.3s | +14° 10' 21.5" | Leo |
| SN2025sei | Unidentified | 3 hours and 9 minutes | 2 days ago | ACIS-S | n/a | Intermediate | Time Critical, Monitoring | 17h 48m 59.4s | +25° 29' 44.9" | Her |
| MKN421 | BL Lac - type object | 4 hours and 7 minutes | 2 days ago | ACIS-S with Low Energy Transmission Grating (LETG) | n/a | None | Time Critical, Monitoring | 11h 04m 27.2s | +38° 12' 31.7" | UMa |
| CAL-ER (41776) | 15 minutes and 40 seconds | 2 days ago | n/a | n/a | n/a | n/a | 05h 02m 52.8s | +15° 24' 57.4" | n/a | |
| SDSS J014837.63+060020.0 | Quasar | 4 hours and 8 minutes | 2 days ago | ACIS-I | n/a | None | n/a | 01h 48m 37.6s | +06° 00' 20.0" | Psc |
| CAL-ER (41772) | 2 days ago | n/a | n/a | n/a | n/a | 04h 09m 42.8s | +72° 05' 04.6" | n/a | ||
| MKN421 | BL Lac - type object | 4 hours and 4 minutes | 2 days ago | ACIS-S with Low Energy Transmission Grating (LETG) | n/a | None | Time Critical, Monitoring | 11h 04m 27.2s | +38° 12' 31.7" | UMa |
| CAL-ER (41771) | 2 days ago | n/a | n/a | n/a | n/a | 04h 09m 42.8s | +72° 05' 04.6" | n/a | ||
| SDSS J014837.63+060020.0 | Quasar | 4 hours and 9 minutes | 2 days ago | ACIS-I | n/a | None | n/a | 01h 48m 37.6s | +06° 00' 20.0" | Psc |
| CAL-ER (41770) | 15 minutes | 1 day ago | n/a | n/a | n/a | n/a | 14h 43m 14.3s | +60° 39' 19.1" | n/a | |
| ZwCl 0857.9+2107 | Unidentified | 2 hours and 45 minutes | 1 day ago | ACIS-S | NRAO | None | n/a | 09h 00m 36.8s | +20° 53' 40.1" | Cnc |
| SN2025sei | Unidentified | 2 hours and 33 minutes | 1 day ago | ACIS-S | n/a | Intermediate | Time Critical, Monitoring | 17h 48m 59.4s | +25° 29' 44.9" | Her |
| CAL-ER (41769) | 50 minutes | 1 day ago | n/a | n/a | n/a | n/a | 08h 47m 51.0s | +28° 47' 21.8" | n/a | |
| CAL-ER (41768) | 50 minutes | 24 hours ago | n/a | n/a | n/a | n/a | 07h 34m 18.5s | +33° 18' 02.9" | n/a | |
| CAL-ER (41767) | 50 minutes | 21 hours ago | n/a | n/a | n/a | n/a | 02h 47m 36.0s | +48° 36' 00.0" | n/a | |
| CAL-ER (41766) | 16 minutes and 40 seconds | 18 hours ago | n/a | n/a | n/a | n/a | 17h 58m 24.2s | +29° 36' 41.8" | n/a | |
| NGC4496A | Galaxy in Pair of Galaxies | 8 hours and 20 minutes | 15 hours ago | ACIS-S | n/a | None | n/a | 12h 31m 39.2s | +03° 56' 22.6" | Vir |
| UGC 05086 | Low Surface Brightness Galaxy | 2 hours and 46 minutes | 6 hours ago | ACIS-I | n/a | None | n/a | 09h 32m 48.8s | +21° 27' 56.3" | Leo |
| SN2025sei | Unidentified | 2 hours and 31 minutes | now | ACIS-S | n/a | Intermediate | Time Critical, Monitoring | 17h 48m 59.4s | +25° 29' 44.9" | Her |
| PSR J1101-6101 | Gamma-ray Source | 8 hours and 23 minutes | in 46 minutes | ACIS-I | n/a | None | Time Critical | 11h 01m 45.1s | -61° 01' 40.3" | Car |
| CAL-ER (41765) | in 9 hours | n/a | n/a | n/a | n/a | 11h 03m 45.5s | -27° 14' 02.4" | n/a | ||
| ZwCl 0857.9+2107 | Unidentified | 2 hours and 46 minutes | in 10 hours | ACIS-S | NRAO | None | n/a | 09h 00m 36.8s | +20° 53' 40.1" | Cnc |
| NGC5728 | Seyfert 2 Galaxy | 2 hours and 31 minutes | in 13 hours | ACIS-S | n/a | None | n/a | 14h 42m 23.9s | -17° 15' 11.2" | Lib |
| CAL-ER (41764) | 15 minutes | in 17 hours | n/a | n/a | n/a | n/a | 02h 38m 22.7s | -24° 03' 14.4" | n/a | |
| GRB260114A | Unidentified | 6 hours and 56 minutes | in 18 hours | ACIS-S | NRAO,JWST | Intermediate | Time Critical, Monitoring | 04h 58m 23.5s | -08° 00' 51.9" | Eri |
| Gaia DR2 675007406816259712 | High Proper Motion Star | 2 hours and 46 minutes | in 1 day | ACIS-S | n/a | None | n/a | 07h 52m 59.6s | +22° 33' 23.1" | Gem |
| GRB260114A | Unidentified | 6 hours and 56 minutes | in 1 day | ACIS-S | NRAO,JWST | Intermediate | Time Critical, Monitoring | 04h 58m 23.5s | -08° 00' 51.9" | Eri |
| CAL-ER (41763) | 20 minutes | in 2 days | n/a | n/a | n/a | n/a | 08h 18m 50.5s | +21° 45' 50.0" | n/a | |
| CAL-ER (41762) | 50 minutes | in 2 days | n/a | n/a | n/a | n/a | 02h 07m 60.0s | +40° 00' 00.0" | n/a | |
| CAL-ER (41761) | 15 minutes | in 2 days | n/a | n/a | n/a | n/a | 16h 40m 00.0s | +13° 00' 00.0" | n/a | |
| ZwCl 0857.9+2107 | Unidentified | 3 hours and 20 minutes | in 2 days | ACIS-S | NRAO | None | n/a | 09h 00m 36.8s | +20° 53' 40.1" | Cnc |
| Hercules A | Active Galaxy Nucleus | 5 hours | in 2 days | ACIS-S | n/a | None | n/a | 16h 51m 08.2s | +04° 59' 33.8" | Her |
| ZwCl 0857.9+2107 | Unidentified | 3 hours and 53 minutes | in 2 days | ACIS-S | NRAO | None | n/a | 09h 00m 36.8s | +20° 53' 40.1" | Cnc |
| 2MASX J13435300+8035495 | Seyfert 2 Galaxy | 2 hours and 46 minutes | in 3 days | ACIS-S | n/a | None | n/a | 13h 43m 52.9s | +80° 35' 49.4" | Cam |
| X-ray blank sky | Unidentified | 1 hour and 43 minutes | in 3 days | HRC-S | n/a | None | n/a | 16h 07m 60.0s | -48° 27' 00.0" | Nor |
| NGC5134 | Emission-line galaxy | 6 hours and 6 minutes | in 3 days | ACIS-S | n/a | None | n/a | 13h 25m 18.6s | -21° 08' 02.8" | Vir |
| ZwCl 0857.9+2107 | Unidentified | 3 hours and 36 minutes | in 3 days | ACIS-S | NRAO | None | n/a | 09h 00m 36.8s | +20° 53' 40.1" | Cnc |