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Astrometric data for minor planet center

COD B96

CON BRIXIIS Observatory, Eyckensbeekstraat 2,9150 Kruibeke, Belgium

OBS E.Bryssinck

MEA E.Bryssinck

TEL 0.4-m f/3.8 astrograph + CCD

ACK MPCReport file updated 2015.02.25 08:19:25

AC2 erik.bryssinck@telenet.be

NET USNO-A2.0

0004P         C2015 02 23.86803 09 20 02.55 +04 05 48.3          17.2 N      B96

0004P         C2015 02 23.86973 09 20 02.42 +04 05 48.6          16.9 N      B96

0004P         C2015 02 23.87144 09 20 02.35 +04 05 49.2          16.6 N      B96

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Photometry obtained by use of FOCAS-II software

COD B96

CON BRIXIIS Observatory - Eyckensbeekstraat 2, B-9150 Kruibeke, Belgium

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

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

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

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

C/2014 Q2     23/02/2015 20:08:29   9.49   8.46   7.92   7.55   7.27   7.06  31.9  16.8  B96

C/2014 Q2     23/02/2015 20:08:29*  0.09   0.14   0.17   0.18   0.19   0.20    52   3.8  USN

                                                                     AFRHO         LOG

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

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

C/2014 Q2     23/02/2015 20:08:29    1.21   1.34  22.78   8.33   32  11848   371  4.074  B96

Af(rho) parameter according the CARA-approach

Af(rho) versus aperture radius (in km) - I-Bessel filter

Af(rho) versus aperture radius (in km) - R-Bessel filter

Comet C/2014 Q2 (LOVEJOY) -   23 febr. 2015

Af(rho) versus aperture radius (in km) - V-Bessel filter

Image comet C/2014 Q2 (LOVEJOY) taken from backyard observatory, BRIXIIS Observatory with a 0.4-m f/3.8 telescope and SBIG STL6303 camera with Clear, R-Bessel, I-Bessel and V-Bessel filter. Unfortunately there  where clouds coming in so I must interrupt several times the imaging session. This can you see below in the star stripes, they are interupted several times. The images with the photometric filter R,I and V-Bessel are in particular for obtaining the Af(rho) parameter according the CARA approach.

Later during the image session gusts dirsturbing the accuracy for photometry, so only the images with photometric filters are used to obtain astrometry for Minor Planet Center

Imaging session: 60x35 sec with clear filter in 1x1 binning and 2 x I + 2 x R + 2 x V with exp. Time of 45 sec each

Results of the Af(rho) parameter can you find below in this page