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31P/Schwassmann-Wachmann

Date of perihelion passage : 2019-7-5.9897
Perihelion distance : 3.424978 AU
Inclination to ecliptic : 4.5461 °
Orbital period : 8.75 years
Eccentricity : 0.193532

NASA/JPL elements, ephemeris and orbit diagram
IAU/MPC elements and ephemeris


On 2017 Dec 19 20h49 UT by Jean-Francois Soulier


(Copyright Jean-Francois Soulier)

Nuclear magnitude (m2)19.9
m2 standard deviation0.2
Aperture radius used for m26.6 "
r (dist/Sun) 4.023 AU
d (dist/Earth) 3.328 AU
Right ascension02 22 46.17 h m s
Declination+08 52 27.6 ° ' "
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 2017.12.19
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0031P        KC2017 12 19.86718 02 22 46.17 +08 52 27.6          19.7 N      A77
0031P        KC2017 12 19.88528 02 22 45.93 +08 52 28.2          20.0 N      A77
Instrument typeNewton
Instrument aperture (0=naked eye)200 mm
Instrument focale length800 mm
Instrument focale/diameter4
Filter(s)None
CameraATIK 314L+
SensorCCD
Sensor temperature-20 °C
Binning1x1
MountAstronomy Equipment AEb
AutoguideNo
Exposure details50 x 60s
Observatory MPC codeA77
LocationDauban (04)
Reference stars catalogUCAC-4
Photometry|Astrometry softwareASTROMETRICA
Resulting picture sampling (scale)1.65 "/pix
Observation submission date2017 Dec 20 00h43m22s
Observation modification date2017 Dec 21 01h31m35s

(Record n° 18656)

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