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73P/Schwassmann-Wachmann

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 deviation0.1
Aperture radius used for m26.5 "
r (dist/Sun) 1.079 AU
d (dist/Earth) 1.402 AU
Right ascension18 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 typeNewton
Instrument aperture (0=naked eye)380 mm
Instrument focale length1748 mm
Instrument focale/diameter4.6
Filter(s)None
CameraST11000
SensorCCD
Sensor temperature-25 °C
Binning1x1
MountNova
MotorizationNo
Exposure details35x1mn
Observatory MPC codeW97
LocationSan Pedro de Atacama, Chile
Reference stars catalogGaia DR1
Used softwaresASTROMETRICA
Resulting picture sampling (scale)1.09 "/pix
Image processingPrism (-dark, /flat), Astrometrica (add), Iris (gradient, levels, ddp, crop)
Remarks or comments73Pbt = fragment outburst (brighter than 73P) ! Tracking adjusted on 73P movement.
Observation submission date2017 Feb 12 15h31m59s
Observation modification date2017 Apr 16 20h24m23s

(Record n° 17138)

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