News

Comet С/2010 Х1 (Elenin) in the STEREO-B fields of view

August 1, 2011 – start to receive images of the comet С/2010 Х1 (Elenin), first comet discovered using CoLiTec (CLT) software (December 10, 2010), with space telescope STEREO-B equipment. The comet’s discoverer Leonid Elenin placed this information on his blog (http://spaceobs.org/ru/2011/08/03/pervye-snimki-komety-elenina-so-stereo-b/). The satellite was turned for 135 degrees July, 31 for better comet observation ( http://spaceobs.org/ru/2011/07/28/the-test-roll-was-succesful-lets-wait-for-august-1/). Given period of observation corresponds to the closest approach of comet and space telescope (http://spaceobs.org/ru/2011/07/31/5-hours-to-closest-approach/ )(7 400 196 km).

Based on the current observation results, the size of comet’s coma is estimated to be 200 000 km (http://spaceobs.org/ru/2011/08/04/diameter-of-coma-of-comet-elenin-exceeded-200000-km/), with permanent estimation of comet nucleus size, that is several kilometers.

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A comet indeed!

July 7, 2011 – Leonid Elenin detected an object that received 100% NEO rating and was waiting for official NEO acknowledgement http://www.minorplanetcenter.net/iau/NEO/ToConfirm.html). The discovery was made at the ISON-NM observatory.
At first NEA confirmed its existence by a circular (http://www.minorplanetcenter.net/mpec/K11/K11O09.html) with provisional marking – 2011 NO1. But it was thought to be a comet. And a new circular MPC MPEC 2011-010: COMET P/2011 NO1 (http://www.minorplanetcenter.net/mpec/K11/K11O10.html) confirmed it to be a comet! Another acknowledgement of this discovery was a telegram № 2768 received from The Central Bureau for Astronomic Telegrams (http://www.cbat.eps.harvard.edu/iau/cbet/002700/CBET002768.txt).
The present comet is the second discovery done with CoLiTec software. We are glad that our software helps astronomers to make such significant discoveries.
The deepest congratulation from all CoLiTec team on the second comet discovery (this time it’s a short-periodic one) made by Leonid Elenin! Well done!

CoLiTec software. Updated results.

MPC monthly circular МРС 75107–75354

Observation results of observatories using CoLiTec software (May 18, 2011 – June 15, 2011):

Observatory (MPC-code)

Number of measurements

Number of objects

Number of asteroids discoveries

AAO (А50)

686

137

4

ISON-NM (Н15)

4366

1076

25

 

Discovery of 29 new asteroids, that makes 471 asteroids’ discoveries and one comet discovery with CoLiTec software application.

 

May 1-version of CoLiTec (CLT) software

The project’s updating:

1. Optimization of interactions between independent blocks of CoLiTec software and supervisor program.

2. Thresholds’ coordinates for different stages of CoLiTec processing can be saved in a separate file.

3. CoLiTec software is upgraded with matching algorithm, invariant with respect to axes orientation of frame’s coordinates system and camera’s rotation angle. That permits wide fields’ matching (for example 8х8 degrees).

4. Results’ viewer is upgraded with a possibility to form tracks by an operator.

5. Updated algorithm of image correction by a high-pass filter for big size frames’ processing (7000х7000 pixels).

6. Introduction of new selective indications for observation’s scripts with frames’ addition 3+3+3 and 6+3.

7. Elaboration of results’ viewer (based on ViewCLT results’ viewer) for frames obtained by a fixed telescope and processed by APEXII software suite. The present software has not only tracks’ view function but stars’ centering of frames obtained by a fixed telescope.

8. Elaboration of a pilot version of software protection through hardware (electronic switch).

9. Fixed different bags.

 

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CoLiTec software. Updated results.

MPC monthly circular МРС 74325–74767 – Observation results of observatories using CoLiTec software (March 20, 2011 – April 18, 2011):

Observatory (MPC-code)

Number of measurements

Number of objects

Number of asteroids discoveries

ААО (А50)

3679

1143

8

ISON-NM (Н15)

14438

3514

30

Discovery of 38 new asteroids, that makes 406 asteroids’ discoveries and one comet discovery with CoLiTec software application.


Significant dates for comet Elenin

4 March 2011 Comet Elenin crossed the ecliptic plane.
15 March 2011 Saturn, Comet Elenin, The Earth and the Sun, Mars, Jupiter and Uranus stood in line.
30 June 2011 года Comet Elenin will cross the Mars orbit.
3 August 2011 Comet Elenin will cross the Earth orbit, and the Earth will pass through comet Elenin’s perihelion.
18 August Comet Elenin will cross Venus orbit.
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