31P/Schwassmann-Wachmann (Record n° 6459)
Orbital period : 8.72 years
NASA/JPL elements
IAU/MPC elements
On 2012 Apr 02 02h33 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 20.3 Aperture radius used for m2 4.5 " r (dist/Sun) 4.000 AU d (dist/Earth) 3.110 AU Right ascension 14 49 20.97 h m s Declination -10 16 44.3 ° ' " MPC report COD C10
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS J.F. Soulier
MEA J.F. Soulier
TEL 0.300-m f/4 Newtonian reflector + CCD
ACK MPCReport file updated 2012.04.02
AC2 jean-francois.soulier2@wanadoo.fr
NET USNO-B1.0
0031P KC2012 04 02.10601 14 49 20.97 -10 16 44.3 20.3 N C10
0031P KC2012 04 02.12661 14 49 20.66 -10 16 37.4 20.3 N C10
Instrument type Newton Instrument aperture (0=naked eye) 300 mm Instrument focale length 1200 mm Instrument focale/diameter 4 Camera ST7-XMEd Sensor CCD Sensor size 6.9 x 4.6 mm2 Sensor pixels number 765 x 510 Sensor temperature -20 °C Binning 1x1 Mount F60a Autoguide Yes Exposure total time 1560 s Exposure details 13 X 120s Seeing 3 Moon elongation 94 ° Air mass 1.93 Observatory MPC code C10 Location 77 Reference stars catalog USNO-B1.0
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.5 "/pix Image processing PRISMV8 DDP FC GIMP Observation submission date 2012 Apr 05 08h51m29s Observation modification date 2012 Apr 05 08h54m54s