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Astrometric data for minor planet center

COD G39

CON ROAD - Remote Observatory Atacama Desert , San Pedro de Atacama, Chile

OBS F.-J.Hambsch, E.Bryssinck

MEA E.Bryssinck

TEL 0.4-m f/6.8 astrograph + CCD

ACK MPCReport file updated 2017.07.24 17:23:03

AC2

NET CMC-15

     ASASSN1  C2017 07 24.42103 02 41 08.50 -08 52 24.3          15.0 R      G39

     ASASSN1  C2017 07 24.42177 02 41 08.52 -08 52 23.1          15.1 R      G39

     ASASSN1  C2017 07 24.42250 02 41 08.62 -08 52 21.8          15.0 R      G39

     ASASSN1  C2017 07 24.42405 02 41 08.77 -08 52 20.7          14.9 R      G39

     ASASSN1  C2017 07 24.42479 02 41 08.86 -08 52 20.3          14.9 R      G39

     ASASSN1  C2017 07 24.42627 02 41 09.00 -08 52 17.6          14.8 R      G39

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Comet C/2017 O1 -  24 july 2017

COD B96

CON BRIXIIS Observatory - Eyckensbeekstraat 2, B-9150 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

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

                                                                     AFRHO         LOG

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

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

FoCAs 3.50

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

This comet is discovered a comet in the course of the "All-Sky Automated Survey for Supernovae" (ASASSN) program, from images taken with the 14-cm "Cassius" survey telescope at Cerro Tololo on July 19.  I and F._J. Hambsch did observation from SIDING SPRING and ROAD observatory on 23 and 24 july.  Our own confirmation are also mentioned in the MPEC 2017-O45 : COMET C/2017 O1 .  On 24 july CBET 4414 : 20170724 : COMET C/2017 O1 was issued and assigned this object as comet C/2017 O1, strange… without any further extinction.

Af(rho) according CARA approach

Af(rho) vs distance to nucleus with R-Bessel filter

Multiplot Af(rho) graph with different ref. Stars from UCAC4 catalog