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73P-BT/Schwassmann-Wachmann

Orbital period : 5.45 years

NASA/JPL elements
IAU/MPC elements


On 2017 Feb 10 08h31 UT by Thierry Noel


(Copyright Thierry Noel)

Nuclear magnitude (m2)12.6
m2 standard deviation0.0
Aperture radius used for m26.5 "
r (dist/Sun)1.091 AU
d (dist/Earth)1.410 AU
Right ascension18 05 12.88 h m s
Declination-20 01 21.6 ° ' "
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 2017.02.10 14:35:02
AC2 thierrynoel38a@free.fr
NET Gaia DR1
0073Pbt       C2017 02 10.35516 18 05 12.88 -20 01 21.6          12.6 N      W97
0073Pbt       C2017 02 10.36387 18 05 15.56 -20 01 26.5          12.6 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
Binning3x3
MountNova
AutoguideNo
Exposure details2x30s
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 (levels, ddp, crop)
URL for more information or pictureshttp://www.minorplanetcenter.net/mpec/K17/K17C79.html
Remarks or comments1st observation of 73Pbt fragment outburst (brighter than 73P) ! c.f. MPEC 2017-C79. Tracking adjusted on 73P movement.
Observation submission date2017 Feb 10 14h54m19s
Observation modification date2017 May 23 23h31m17s

(Record n° 17123)

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