116P/Wild


[upwards] [116p_20090412] [116p_20090320] [116p_20090318] [116p_20090219] [116p_20090215] [116p_20090203] [116p_20090130]

At this image I found the new object at February,19 2009 again. It is escorting the comet since a couple of days.
After the required observation of at least two days, the MPC confirmed the new object at February, 23 2009 with the number
K09C45D
At February, 15 I found the new object on another of my images of 116P/Wild first!

After three weeks of confusion I could identify my new object on this image as 2009 BK163, detected by Spacewatch at January, 31 2009.
Finally I found two objects on two different images, not a single one. They had a similiar orbit, so I could easlily mismatch them.  March, 7 2009

 116P/Wild � by Bernhard Haeusler, Germany

2009-02-19 by Bernhard Haeusler, Maidbronn, Germany

10 x 3 min. exposure, 2009-02-19, UT 02:25 to 02:56, 12" SCT  f-7 + CCD ST10XME
14.51 mag, coma: 0'48", tail: 2'14" in PA 279�


MPC observation: computed with Astrometrica

COD B82
OBS Bernhard Haeusler
TEL 0.30-m Schmidt-Cassegrain + CCD

NET CMC-14

0116P C2009 02 19.10206 09 37 30.30 +19 32 09.0 14.5 N B82
0116P C2009 02 19.10422 09 37 30.18 +19 32 09.2 14.5 N B82
0116P C2009 02 19.10637 09 37 30.09 +19 32 09.6 14.5 N B82
0116P C2009 02 19.10852 09 37 29.97 +19 32 09.8 14.5 N B82
0116P C2009 02 19.11068 09 37 29.87 +19 32 10.4 14.5 N B82


Gauss curve produced by Astrometrica. The total PSF is using the aperture circle of 10 x 10 pixel around the brightest pixel.
You see the Gauss curve right as the computed ideal line and the real pixels contributed around the ideal line.
The Fit RMS is the deviation from the ideal line (inlay under the Gauss curve).


Photometry computed with FOCAS II, using the Multibox method:

COD B82
OBS Bernhard Haeusler
CATALOG: USNO A2.0 / CMC-14 - BAND: R

                                                      10x10  20x20  30x30  40x40  50x50  60x60   SNR   SB  COD
OBJECT        DATE       TIME       +/-       +/-       +/-       +/-       +/-      +/-  N  FWHM  CAT
------------  ---------- --------  -----  -----  -----  -----  -----  -----  ----  ----  ---

116P             19/02/2009 02:33:10 14.51 13.84 13.54 13.36 13.22 13.12 32.7 19.2 B82
116P             19/02/2009 02:33:10* 0.02 0.01 0.01 0.01 0.02 0.02 5 4.5 CMC

FoCAs II - 07/01/2009-b

FOCAS II is a tool for photometry on the base of data coming from Astrometrica. Focas is basically using the .LOG file of Astrometrica.

Explanation of the FOCAS II table headings:

Object, date and time are self-explaining.
10x10, 20x20 ... 60x60 are the measured magnitudes according to the aperture sizes of photometry in arc sec (rectancle).
SNR is the  Signal-to-noise ratio for aperture photometry (calculator).
SB is the magnitude of the faintest star on the image matching with the used star catalogue. This is not the faintest star of the image!
COD is the MPC Code of the observatory.

second line:
+/- are the precisions of the measurements.
N is the number of the used images for the measurements.
FWHM is the Full-Width Half-Maximum of the total PSF: Measure of the seeing.
CAT is the used star catalog in Astrometrica.

Focas II is using the .log file of Astrometrica and is computing the photometry under different apertures (10x10 ... 60x60).
The graphs are showing the astrometric precision of the images.


links:

http://astrosurf.com/cometas-obs/index_i.htm Visual and CCD Observations and images from the "Cometas Obs" mailing list, using the Focas II format

es.groups.yahoo.com/group/Cometas_Obs The Spanish comet observation group in Yahoo

 

[upwards] [116p_20090412] [116p_20090320] [116p_20090318] [116p_20090219] [116p_20090215] [116p_20090203] [116p_20090130]

 

Copyright: The author of NEO Planner and all sites of this web is Bernhard Haeusler, Dettelbach, Germany, all rights reserved