| Measurement | Value | Units | |
|---|---|---|---|
| Swift Trigger Time | March 17, 2017, 4:45 a.m. | UT | Modify |
| Swift Trigger Number | 742866 | None | Modify |
| BAT RA (J2000) | 93.087 | deg | Modify |
| BAT Dec (J2000) | 50.5 | deg | Modify |
| BAT 90% Error Radius | 1.0 | arcmin | Modify |
| BAT T90 | 11.94 | sec | Modify |
| BAT Fluence (15-150 keV) | 13.0 | 10^-7 erg/cm^2 | Modify |
| XRT Time to First Observation | 83.3 | sec | Modify |
| UVOT Time to First Observation | 87.0 | sec | Modify |
| UVOT Magnitude | V=18.36 | None | Modify |
| UVOT Other Filter Magnitudes | B=19.12|U=17.75|UVW1=20.20|UVM2>19.8|UVW2>20.2|White=17.53 | None | Modify |
| Swift Burst Advocate | Sam Laporte | None | Modify |
| XRT RA (J2000) | 93.0619583333 | deg | Modify |
| XRT Dec (J2000) | 50.4930277778 | deg | Modify |
| XRT 90% Error Radius | 1.4 | arcsec | Modify |
| XRT Initial Temporal Index | -3.755 | None | Modify |
| XRT Spectral Index (Gamma) | 2.06523 | None | Modify |
| XRT Column Density (NH) | 2.52770000343 | 10^21 cm^-2 | Modify |
| UVOT RA (J2000) | 93.06175 | deg | Modify |
| UVOT Dec (J2000) | 50.4931111111 | deg | Modify |
| UVOT 90% Error Radius | 0.43 | arcsec | Modify |
| BAT 1-sec Peak Photon Flux (15-150 keV) | 3.5 | ph/cm^2/sec | Modify |
| XRT 11 Hour Flux (0.3-10 keV) | 0.01873858 | 10^-11 erg/cm^2/s | Modify |
| XRT 24 Hour Flux (0.3-10 keV) | 0.00575386 | 10^-11 erg/cm^2/s | Modify |
| Other Observatory Detections | SANTEL-650 (0.65m), Xinglong (0.8m), GMG (2.4m), AZT-33IK, MITSuME (50cm), Faulkes North (2m), HJT (1.5m), POLAR, DOAO (1m) | None | Modify |
| BAT Photon Index (15-150 keV) (CPL = cutoff power-law) | 0.8 | None | Modify |