73P/Schwassmann-Wachmann (Record n° 17126)
Orbital period : 5.44 years
NASA/JPL elements
IAU/MPC elements
On 2017 Feb 11 07h35 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 14.9 m2 standard deviation 0.1 Aperture radius used for m2 6.2 " Coma diameter 0.43 ' Tail length 0.01 ° Tail position angle
(PA) 285 ° r (dist/Sun) 1.085 AU d (dist/Earth) 1.406 AU Right ascension 18 10 11.73 h m s Declination -20 09 51.5 ° ' " MPC report COD W96
CON ALAIN MAURY [amaury@spaceobs.com]
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS A. Maury, J.-F. Soulier
MEA J.-F. Soulier
TEL 0.4-m f/5.4 Ritchey-Chretien + CCD
ACK MPCReport file updated 2017.02.11
AC2 amaury@spaceobs.com
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0073P C2017 02 11.31602 18 10 11.73 -20 09 51.5 14.9 N W96
0073P C2017 02 11.33598 18 10 17.98 -20 10 01.0 14.9 N W96
0073P C2017 02 11.35833 18 10 24.85 -20 10 12.5 15.1 N W96
0073P C2017 02 11.38876 18 10 34.29 -20 10 28.1 14.8 N W96
Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 2160 mm Instrument focale/diameter 5.4 Filter(s) None Camera QHY Sensor CCD Sensor temperature -30 °C Binning 3x3 Mount VMA 200 Autoguide No Exposure details 40 x 30s Observatory MPC code W96 Location San Pedro d'Atacama Chili Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.55 "/pix Observation submission date 2017 Feb 11 11h22m24s Observation modification date 2017 Feb 11 11h26m38s