117P/Helin-Roman-Alu (Record n° 14802)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2015 Nov 29 20h17 UT by Philippe DupouyNuclear magnitude (m2) 17.1 m2 standard deviation 0.1 Aperture radius used for m2 4.9 " r (dist/Sun) 4.047 AU d (dist/Earth) 3.386 AU Right ascension 00 55 22.74 h m s Declination -00 32 10.2 ° ' " MPC report COD 958
CON P. Dupouy, Observatoire de Dax, DAX, France [obsdax@orange.fr]
OBS P. Dupouy
MEA J. B. de Vanssay
TEL 0.43-m f/2.7 reflector + CCD
ACK MPCReport file updated 2015.11.30 12:25:20
AC2 obsdax@orange.fr
AC2 jbdv@club-internet.fr
NET UCAC-4
0117P C2015 11 29.84546 00 55 22.74 -00 32 10.2 17.2 N 958
0117P C2015 11 29.85794 00 55 22.70 -00 32 08.1 17.1 N 958
0117P C2015 11 29.87117 00 55 22.54 -00 32 07.6 16.9 N 958
Instrument type Newton Instrument aperture (0=naked eye) 430 mm Instrument focale length 1161 mm Instrument focale/diameter 2.7 Filter(s) None Camera ATIK 460EX Sensor CCD Sensor temperature -5 °C Binning 2x2 Mount Home MEADE Motorization No Autoguide No Observatory MPC code 958 Location 40100 DAX FRANCE Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Observation submission date 2015 Nov 30 13h30m42s