73P/Schwassmann-Wachmann (Record n° 17138)
Orbital period : 5.44 years
NASA/JPL elements
IAU/MPC elements
On 2017 Feb 12 08h24 UT by Thierry Noel
(Copyright Thierry Noel)Nuclear magnitude (m2) 14.1 m2 standard deviation 0.1 Aperture radius used for m2 6.5 " r (dist/Sun) 1.079 AU d (dist/Earth) 1.402 AU Right ascension 18 15 33.03 h m s Declination -20 18 10.1 ° ' " 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 Newton + CCD
ACK MPCReport file updated 2017.02.12 15:10:39
AC2 thierrynoel38a@free.fr
NET Gaia DR1
0073P C2017 02 12.35017 18 15 33.03 -20 18 10.1 14.2 N W97
0073P C2017 02 12.36128 18 15 36.47 -20 18 15.8 14.2 N W97
0073P C2017 02 12.37312 18 15 40.14 -20 18 21.1 14.1 N W97
0073P C2017 02 12.38616 18 15 44.14 -20 18 27.2 14.0 N W97
0073P C2017 02 12.39786 18 15 47.82 -20 18 32.8 14.2 N W97
Instrument type Newton Instrument aperture (0=naked eye) 380 mm Instrument focale length 1748 mm Instrument focale/diameter 4.6 Filter(s) None Camera ST11000 Sensor CCD Sensor temperature -25 °C Binning 1x1 Mount Nova Motorization No Exposure details 35x1mn Observatory MPC code W97 Location San Pedro de Atacama, Chile Reference stars catalog Gaia DR1
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.09 "/pix Image processing Prism (-dark, /flat), Astrometrica (add), Iris (gradient, levels, ddp, crop) Remarks or comments 73Pbt = fragment outburst (brighter than 73P) !
Tracking adjusted on 73P movement. Observation submission date 2017 Feb 12 15h31m59s Observation modification date 2017 Apr 16 20h24m23s