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71P/Clark

Orbital period : 5.56 years

NASA/JPL elements
IAU/MPC elements


On 2011 Apr 06 21h39 UT by Jean-Francois Soulier


(Copyright Jean-Francois Soulier)

Nuclear magnitude (m2)18
m2 standard deviation0.1
Aperture radius used for m28 "
r (dist/Sun) 2.658 AU
d (dist/Earth) 1.883 AU
Right ascension10 23 51.59 h m s
Declination+23 52 31.0 ° ' "
MPC report
COD C10
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS J.F. Soulier
MEA J.F. Soulier
TEL 0.255-m f/3.6 Newtonian reflector + CCD
ACK MPCReport file updated 2011.04.06
AC2 jean-francois.soulier2@wanadoo.fr
NET USNO-B1.0
0071P         C2011 04 06.90215 10 23 51.59 +23 52 31.0          18.0 N      C10
0071P         C2011 04 06.91865 10 23 50.97 +23 52 29.1          17.9 N      C10
0071P         C2011 04 06.93391 10 23 50.49 +23 52 28.2          18.2 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-20 °C
Binning1x1
MountPERL-VIXEN
AutoguideYes
Exposure total time1800 s
Exposure details15 X 120s
Seeing3
Moon elongation95 °
Air mass1.10
Observatory MPC codeC10
Location77
Reference stars catalogUSNO-B1.0
Used softwaresASTROMETRICA
Resulting picture sampling (scale)2.06 "/pix
Image processingPRISMV8 APE DDP
Observation submission date2011 Apr 07 06h47m31s
Observation modification date2011 Apr 07 15h49m12s

(Record n° 2402)

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