Table C.5.
Optical (UBVRI) photometric measurements of AT 2012jc.
| Date | MJD | Phasea | U(err) | B(err) | V(err) | R(err) | I(err) | Instrument |
|---|---|---|---|---|---|---|---|---|
| 20120313 | 55999.27 | -24.2 | – | – | – | > 19.9 | – | PROMPT3/5b |
| 20120317 | 56003.39 | -20.1 | – | – | > 19.5 | – | – | 1 |
| 20120327 | 56013.49 | -10.0 | – | – | 18.7 | – | – | 1 |
| 20120328 | 56014.07 | -9.4 | – | – | 18.5 | – | – | 1 |
| 20120329 | 56015.06 | -8.4 | 20.308(0.114) | 18.823(0.022) | 18.206 (0.027) | 17.855 (0.031) | 17.460 (0.058) | RATCam |
| 20120329 | 56015.14 | -8.4 | – | 18.744(0.053) | 18.259 (0.044) | 17.924 (0.034) | 17.521 (0.129) | AFOSC |
| 20120329 | 56015.35 | -8.2 | – | – | 18.0 (0.1) | – | – | 2 |
| 20120331 | 56017.26 | -6.2 | – | 18.390(0.113) | 17.888 (0.051) | 17.503 (0.064) | 17.129 (0.056) | PROMPT3 |
| 20120412 | 56029.24 | +5.7 | – | – | 17.776 (0.069) | 17.403 (0.057) | 17.102 (0.045) | PROMPT3/5 |
| 20120414 | 56031.37 | +7.9 | – | 18.422(0.020) | 17.901 (0.020) | 17.564 (0.013) | 17.164 (0.029) | EFOSC2 |
| 20120415 | 56032.41 | +8.9 | – | – | – | 17.614 (0.062) | – | PROMPT3/5 |
| 20120416 | 56033.24 | +9.7 | – | – | 17.904 (0.055) | 17.561 (0.059) | 17.239 (0.049) | PROMPT3/5 |
| 20120416 | 56033.97 | +10.5 | 19.391(0.093) | 18.494(0.028) | 17.902 (0.029) | 17.552 (0.032) | 17.285 (0.112) | RATCam |
| 20120417 | 56034.05 | +10.6 | – | 18.443(0.034) | 17.947 (0.030) | 17.591 (0.017) | 17.287 (0.055) | AFOSC |
| 20120417 | 56034.19 | +10.7 | – | – | 17.900 (0.069) | 17.634 (0.056) | 17.201 (0.067) | PROMPT3/5 |
| 20120421 | 56038.25 | +14.8 | – | 18.694(0.062) | 18.064 (0.049) | 17.825 (0.084) | 17.445 (0.057) | PROMPT3/5 |
| 20120422 | 56039.01 | +15.5 | 19.917(0.109) | 18.598(0.024) | 18.117 (0.025) | 17.856 (0.031) | 17.511 (0.053) | RATCam |
| 20120425 | 56042.11 | +18.6 | – | – | 18.478 (0.109) | 18.094 (0.168) | 17.710 (0.126) | SBIG |
| 20120501 | 56048.17 | +24.7 | – | 19.011(0.084) | 18.436 (0.080) | 18.083 (0.055) | 17.649 (0.071) | PROMPT3/5 |
| 20120501 | 56048.20 | +24.7 | – | 19.155(0.013) | 18.479 (0.018) | – | – | ALFOSC |
| 20120501 | 56048.38 | +24.9 | – | 19.064(0.031) | 18.487 (0.032) | 18.112 (0.029) | 17.696 (0.074) | EFOSC2 |
| 20120502 | 56049.21 | +25.7 | – | 19.134(0.113) | 18.485 (0.088) | 18.073 (0.058) | 17.647 (0.094) | PROMPT3/5 |
| 20120509 | 56056.10 | +32.6 | – | 19.386(0.033) | 18.595 (0.035) | 18.154 (0.076) | 17.700 (0.088) | LRS |
| 20120515 | 56062.11 | +38.6 | 21.101(0.212) | 19.560(0.039) | 18.743 (0.044) | 18.292 (0.050) | 17.701 (0.226) | RATCam |
| 20120515 | 56062.24 | +38.7 | – | – | 18.707 (0.068) | 18.226 (0.072) | 17.647 (0.042) | PROMPT3/5 |
| 20120520 | 56067.18 | +43.7 | – | – | – | – | 17.788 (0.052) | PROMPT3/5 |
| 20120521 | 56068.17 | +44.7 | – | 19.710(0.132) | 18.807 (0.068) | 18.325 (0.078) | 17.819 (0.035) | PROMPT3/5 |
| 20120601 | 56079.97 | +56.5 | > 21.3 | 20.142(0.111) | 19.217 (0.051) | 18.699 (0.058) | 18.089 (0.057) | RATCam |
| 20120603 | 56081.11 | +57.6 | – | – | – | 18.804 (0.154) | – | PROMPT3/5b |
| 20120603 | 56081.96 | +58.5 | > 21.3 | 20.196(0.148) | 19.263 (0.093) | 18.741 (0.040) | 18.115 (0.079) | RATCam |
| 20120620 | 56098.24 | +74.7 | – | 20.501(0.148) | 19.512 (0.101) | > 19.7 | – | TRAPPIST |
Notes.a Phases are relative to the R-band maximum light: MJD=56023.5.
b These unfiltered data were reported to Johnson-Cousins R magnitudes, as suggested by the quantum efficiency of the CCD.
1 Observations from The Astronomer’s Telegram (ATel, No. 4004; see Howerton et al. 2012).
2 Bright Supernova website (http://www.rochesterastronomy.org/sn2012/index.html#PSNJ14535395+0334049; Observation: J. Brimacombe)
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