73P/Schwassmann-Wachmann (Record n° 17664)
Perihelion distance : 0.9 AU
Inclination to ecliptic : 6 °
Orbital period : 5.33 years
Eccentricity : 0.71
NASA/JPL elements
IAU/MPC elements
On 2017 May 12 09h57 UT by Thierry Noel
(Copyright Thierry Noel)Magnitude (MPC m2) 16.5 Magnitude standard deviation 0.5 Aperture radius for m2 6.7 " r (dist/Sun) 1.248 AU d (dist/Earth) 1.740 AU Right ascension 9.78683 ° Declination -4.46219 ° MPC report COD W97
CON Thierry Noel [thierrynoel38a@free.fr]
OBS A. Maury, B. Sandness, T. Noel
MEA T. Noel
TEL 0.38-m f/4.6 Newtonian reflector + CCD
COM Aperture radius for m2 : 6.7"
COM Full Moon
ACK MPCReport file updated 2017.05.12 14:41:46
AC2 thierrynoel38a@free.fr
NET Gaia DR1
0073P KC2017 05 12.41440 00 39 08.84 -04 27 43.9 16.3 N W97
0073P KC2017 05 12.40522 00 39 07.31 -04 27 53.0 16.3 R W97
Instrument type Newton Instrument aperture (0=naked eye) 380 mm Instrument focale length 1748 mm Instrument focale/diameter 4.6 Filter Clear Camera QSI 532ws-M1 Sensor CCD Sensor temperature -20 °C Binning 1x1 Mount Nova Exposure details 12x1mn Observatory MPC code W97 Location San Pedro de Atacama, Chile Reference stars catalog (ast) Gaia DR1
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.84 "/pix Image processing Prism (-dark, /flat), Astrometrica (add), Iris (levels, crop) Observation submission date 2017 May 12 14h56m56s Observation modification date 2017 May 23 23h23m03s