261P/Larson (Record n° 6877)
Orbital period : 6.52 years
NASA/JPL elements
IAU/MPC elements
On 2012 Jul 26 00h50 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 18.9 m2 standard deviation 0.1 Aperture radius used for m2 8 " r (dist/Sun) 2.237 AU d (dist/Earth) 1.464 AU Right ascension 23 32 48.36 h m s Declination +03 12 48.0 ° ' " 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/3 Newtonian reflector + CCD
ACK MPCReport file updated 2012.07.26
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-3
0261P KC2012 07 26.03488 23 32 48.36 +03 12 48.0 18.8 N C10
0261P KC2012 07 26.04986 23 32 48.52 +03 12 53.8 19.0 N C10
Instrument type Newton Instrument aperture (0=naked eye) 300 mm Instrument focale length 900 mm Instrument focale/diameter 3 Camera ST7-XMEd Sensor CCD Sensor size 6.9 x 4.6 mm2 Sensor pixels number 765 x 510 Sensor temperature -15 °C Binning 1x1 Mount F60 Autoguide Yes Exposure total time 1800 s Exposure details 15 X 120s Seeing 3 Moon elongation 146 ° Air mass 1.70 Observatory MPC code C10 Location 77 Reference stars catalog UCAC-3
Used softwares ASTROMETRICA Resulting picture sampling (scale) 2 "/pix Image processing PRISMV8 DDP FC GIMP Observation submission date 2012 Jul 26 13h23m55s Observation modification date 2012 Jul 26 16h20m35s