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117P/HELIN-ROMAN-ALU    -   13 june 2021

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 2021.06.15 09:50:45

NET Gaia DR2

0117P         C2021 06 13.89604 12 58 52.64 -00 52 32.4          15.5 R      B96

0117P         C2021 06 13.90258 12 58 52.68 -00 52 33.9          15.8 R      B96

0117P         C2021 06 13.90911 12 58 52.69 -00 52 35.0          15.8 R      B96

----- end -----

Photometric data from FOCAS-II

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

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

117P          13/06/2021 21:39:42  16.10  15.65  15.40  15.43                10.8  17.1  B96

117P          13/06/2021 21:39:42*  0.17   0.23   0.26   0.33                   3   3.3  Gai

                                                                     AFRHO         LOG

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

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

117P          13/06/2021 21:39:42    3.05   3.55   9.04  16.11   11    404    37  2.607  B96

Af(rho) data according CARA approach

Af(rho) vs. core distance - data from Bessel-R filtered CCD image

Photometric data obtained from KOPR (by Jakub Černý)

ICQ Code:

117        2021 06 13.90  k 15.0 AQ 40.0L 3A080   0.7               ICQ XX BRY04I     C 0.72mST0 K6F KPR 5 U1*0.02       1.2s 1.2

;Comet Alt.:29.4 Calculated mags:15.0,15.0,15.0,15.0,15.0,15.0,15.0,15.0,15.0,15.0

CometObs format:

117P/Helin-Roman-Alu:

2021  Jun.  13.90  UT: m1=15.0 CCD-R, Dia.=0.7', 40.0-cm Newtonian reflector .

[Comet Alt.:29.4 Calculated mags:15.0,15.0,15.0,15.0,15.0,15.0,15.0,15.0,15.0,15.0

] (Erik Bryssinck, BRIXIIS)

Afrho output:

117P, 2459379.38958, 3.546, 3.052, 15.51, R, 8236, 553.1, 5.6

117P, 2459379.38958, 3.546, 3.052, 15.51, R, 13728, 532.8, 5.3

117P, 2459379.38958, 3.546, 3.052, 15.51, R, 19219, 487.3, 4.9

117P, 2459379.38958, 3.546, 3.052, 15.51, R, 24710, 439.7, 4.4

117P, 2459379.38958, 3.546, 3.052, 15.51, R, 30202, 411.7, 4.1

117P, 2459379.38958, 3.546, 3.052, 15.51, R, 35693, 378.1, 3.8

117P, 2459379.38958, 3.546, 3.052, 15.51, R, 41184, 339.1, 3.4

117P, 2459379.38958, 3.546, 3.052, 15.51, R, 46675, 307.4, 3.1

117P, 2459379.38958, 3.546, 3.052, 15.51, R, 49421, 295.0, 3.0