comet 73P/SCHWASSMANN-WACHMANN 3

Photometric data obtained from FOCAS-II software

COD Q62

CON BRIXIIS Observatory, Eyckensbeekstraat 2, Kruibeke, Belgium

CATALOG: USNO A2.0 / CMC 14-15 - BAND: R

10x10 20x20 30x30 40x40 50x50 60x60 SNR SB COD

COMET UTC +/- +/- +/- +/- +/- +/- N FWHM CAT

------------ ------------------- ----- ----- ----- ----- ----- ----- ---- ---- ---

73P 06/05/2017 19:17:28 15.43 14.65 14.30 14.09 13.95 13.83 5.9 18.9 Q62

73P 06/05/2017 19:17:28* 0.03 0.13 0.12 0.09 0.09 0.09 6 3.3 CMC

0073Pbt 06/05/2017 19:17:28 15.82 14.97 14.53 14.27 14.09 13.94 3.7 18.9 Q62

0073Pbt 06/05/2017 19:17:28* 0.12 0.18 0.14 0.11 0.11 0.10 6 3.3 CMC

AFRHO LOG

COMET UTC DELTA r BOX " MAG RSR CM +/- AFRHO OBS

------------ ------------------- ----- ----- ----- ----- --- ----- ---- ----- ---

73P 06/05/2017 19:17:28 1.71 1.21 16.10 14.93 6 44 7 1.643 Q62

0073Pbt Orbital elements not found

Astrometric data for MPC:

COD Q62

CON iTelescope.net - Siding Spring Observatory, Coonabarabran, NSW, Australia,

OBS E.Bryssinck

MEA E.Bryssinck

TEL 0.51-m f/4.5 Ritchey-Chretien + CCD

ACK MPCReport file updated 2017.05.07 13:23:35

AC2

NET CMC-15

0073P C2017 05 06.80065 00 23 15.25 -05 53 24.4 16.1 N Q62

0073P C2017 05 06.80134 00 23 15.37 -05 53 24.1 16.1 N Q62

0073P C2017 05 06.80206 00 23 15.51 -05 53 23.8 16.1 N Q62

0073P C2017 05 06.80275 00 23 15.60 -05 53 22.6 15.9 N Q62

0073P C2017 05 06.80344 00 23 15.78 -05 53 22.2 16.3 N Q62

0073P C2017 05 06.80414 00 23 15.88 -05 53 21.5 16.1 N Q62

0073P C2017 05 06.80484 00 23 15.99 -05 53 21.1 16.1 N Q62

0073P C2017 05 06.80554 00 23 16.15 -05 53 19.9 16.4 N Q62

0073Pbt C2017 05 06.80065 00 23 15.35 -05 53 18.6 17.0 N Q62

0073Pbt C2017 05 06.80134 00 23 15.47 -05 53 18.1 17.2 N Q62

0073Pbt C2017 05 06.80206 00 23 15.56 -05 53 17.8 17.5 N Q62

0073Pbt C2017 05 06.80275 00 23 15.69 -05 53 17.1 17.0 N Q62

0073Pbt C2017 05 06.80344 00 23 15.86 -05 53 16.7 17.0 N Q62

0073Pbt C2017 05 06.80414 00 23 16.01 -05 53 16.2 17.1 N Q62

0073Pbt C2017 05 06.80484 00 23 16.13 -05 53 14.9 17.4 N Q62

0073Pbt C2017 05 06.80554 00 23 16.17 -05 53 14.4 17.0 N Q62

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fragmentation/desintegration of comet 73P clearly visible

Animation of 8 images of comet 73P with fragment (each image 45 sec exposure )