31P/Schwassmann-Wachmann (Record n° 18367)
Perihelion distance : 3.41 AU
Inclination to ecliptic : 5 °
Orbital period : 8.69 years
Eccentricity : 0.19
NASA/JPL elements
IAU/MPC elements
On 2017 Oct 15 03h03 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Magnitude (MPC m2) 20.6 Magnitude standard deviation 0.1 Aperture radius for m2 5 " r (dist/Sun) 4.130 AU d (dist/Earth) 3.199 AU Right ascension 44.22679 ° Declination +10.91553 ° MPC report COD A77
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.20-m f/4 Newtonian reflector + CCD
ACK MPCReport file updated 2017.10.15
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0031P KC2017 10 15.12727 02 56 54.43 +10 54 55.9 20.6 N A77
0031P KC2017 10 15.16402 02 56 53.27 +10 54 50.3 20.5 N A77
Instrument type Newton Instrument aperture (0=naked eye) 200 mm Instrument focale length 800 mm Instrument focale/diameter 4 Filter None Camera ATIK 314L+ Sensor CCD Sensor temperature -10 °C Binning 1x1 Mount Astronomy Equipment AEb Autoguide No Picture exposure details 80 x 60s Observatory MPC code A77 Location Dauban (04) Reference stars catalog (ast) UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.65 "/pix Observation submission date 2017 Oct 15 09h20m58s Observation modification date 2017 Oct 15 14h33m25s