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31P/Schwassmann-Wachmann

Perihelion distance : 3.41 AU
Inclination to ecliptic : 5 °
Orbital period : 8.69 years
Eccentricity : 0.19

NASA/JPL elements
IAU/MPC elements


On 2011 Mar 03 22h42 UT by Jean-Francois Soulier


(Copyright Jean-Francois Soulier)

Magnitude (MPC m2)18.3
Magnitude standard deviation0.3
Aperture radius for m28 "
r (dist/Sun) 3.481 AU
d (dist/Earth) 2.495 AU
Right ascension159.71025 °
Declination+13.30075 °
MPC report
COD C10
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS JF. Soulier
MEA JF. Soulier
TEL 0.255-m f/3.6 Newtonian reflector + CCD
ACK MPCReport file updated 2011.03.03 and 04
AC2 jean-francois.soulier2@wanadoo.fr
NET USNO-B1.0
0031P         C2011 03 03.94605 10 38 50.46 +13 18 02.7          18.1 N      C10
0031P         C2011 03 03.95507 10 38 50.09 +13 18 04.9          18.7 N      C10
0031P         C2011 03 03.96690 10 38 49.72 +13 18 07.8          18.0 N      C10
Instrument typeNewton
Instrument aperture (0=naked eye)254 mm
Instrument focale length900 mm
Instrument focale/diameter3.6
CameraST7-XMEd
SensorCCD
Sensor size6.9 x 4.6 mm2
Sensor pixels number765 x 510
Sensor temperature-25 °C
Binning1x1
MountPERL-VIXEN
AutoguideYes
Exposure total time1440 s
Picture exposure details12X120s
Seeing4
Moon elongation170 °
Air mass1.25
Observatory MPC codeC10
Location77
Reference stars catalog (ast)USNO-B1.0
Used softwaresASTROMETRICA
Resulting picture sampling (scale)2.06 "/pix
Image processingPRISMV7 APE DDP
Observation submission date2011 Mar 04 12h00m30s
Observation modification date2011 Mar 05 10h28m58s

(Record n° 2084)

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