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117P/Helin-Roman-Alu

Orbital period : 8.25 years

NASA/JPL elements
IAU/MPC elements


On 2012 Mar 15 23h23 UT by Jean-Francois Soulier


(Copyright Jean-Francois Soulier)

Nuclear magnitude (m2)17.2
Aperture radius used for m27.5 "
r (dist/Sun) 4.320 AU
d (dist/Earth) 3.356 AU
Right ascension11 12 15.69 h m s
Declination+16 48 48.3 ° ' "
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 2012.03.15
AC2 jean-francois.soulier2@wanadoo.fr
NET USNO-B1.0
0117P         C2012 03 15.97425 11 12 15.69 +16 48 48.3          17.2 N      C10
0117P         C2012 03 15.98596 11 12 15.25 +16 48 50.5          17.2 N      C10
0117P         C2012 03 15.99861 11 12 14.74 +16 48 52.6          17.2 N      C10
Instrument typeNewton
Instrument aperture (0=naked eye)300 mm
Instrument focale length1200 mm
Instrument focale/diameter4
CameraST7-XMEd
SensorCCD
Sensor size6.9 x 4.6 mm2
Sensor pixels number765 x 510
Sensor temperature-20 °C
Binning1x1
MountF60a
AutoguideNo
Exposure total time1800 s
Exposure details15 X 120s
Seeing2
Moon elongation114 °
Air mass1.17
Observatory MPC codeC10
Location77
Reference stars catalogUSNO-B1.0
Used softwaresASTROMETRICA
Resulting picture sampling (scale)1.5 "/pix
Image processingPRISMV8,LOG,FC,GIMP
Observation submission date2012 Mar 16 05h57m29s
Observation modification date2012 Mar 18 17h21m09s

(Record n° 5989)

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