Candidate: 921360 (RA: 2.630859 Dec: 26.714449)

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Near Time Persistency Checker Volunteer moderator Project administrator Project developer Project scientist Send message Joined: 8 Jul 09 Posts: 41 Credit: 0 RAC: 0	Message 927263 - Posted: 19 Aug 2009, 21:28:48 UTC Last modified: 19 Aug 2009, 21:28:48 UTC
This is a discussion thread for SETI@home candidate # 921360 (located at RA: 2.630859 Dec: 26.714449) Please feel to exchange thoughts, comments, questions and answers regarding this particular candidate. For more information, please read the NTPCkr Frequently Asked Questions (FAQ).
ID: 927263 ·

ML1 Volunteer tester Send message Joined: 25 Nov 01 Posts: 7116 Credit: 3,683,441 RAC: 969	Message 927294 - Posted: 19 Aug 2009, 22:43:22 UTC - in response to Message 927263. Last modified: 19 Aug 2009, 22:46:31 UTC
OK... I'll shoot some first-glance observations: 1 921360 2.630859 26.714449 9589 (309/2395) 1542 (27/673) 2394 (41/1003) 2635 (17/921) 0 -3.614816e+6 0 12 Aug 2009 15:08:24 UTC skyplot / discuss 2 20582818 22.973145 16.295956 9292 (389/2328) 1363 (18/620) 2583 (94/1005) 1126 (4/444) 0 -3.216304e+6 0 12 Aug 2009 23:16:30 UTC skyplot / discuss 3 20582801 22.987793 16.295956 11459 (524/2760) 1476 (21/698) 2717 (95/1076) 1478 (5/553) 0 -3.207500e+6 0 17 Aug 2009 16:23:16 UTC skyplot / discuss 4 20504996 23.165039 16.315388 9831 (430/2618) 454 (2/171) 1074 (18/459) 1502 (12/605) 0 -3.151631e+6 0 15 Aug 2009 19:47:23 UTC skyplot / discuss 5 20493683 23.144531 15.771995 11087 (485/2703) 1245 (15/552) 2255 (64/963) 1680 (11/659) 0 -3.052986e+6 0 13 Aug 2009 12:01:23 UTC skyplot / discuss 6 20499128 23.165039 15.771995 7685 (272/2128) 336 (0/134) 845 (16/342) 1161 (10/472) 0 -3.011546e+6 0 10 Aug 2009 13:34:35 UTC skyplot / discuss 7 20504975 23.167969 16.315388 7381 (277/2098) 405 (0/148) 954 (13/382) 1159 (3/470) 0 -2.880384e+6 0 15 Aug 2009 19:53:59 UTC skyplot / discuss 8 20496034 23.020020 16.295956 11081 (530/2724) 1573 (28/705) 2891 (89/1175) 1414 (1/548) 0 -2.427523e+6 0 13 Aug 2009 10:51:10 UTC skyplot / discuss 9 20504984 23.170898 16.315388 6539 (221/1805) 367 (0/136) 854 (14/365) 830 (4/345) 0 -2.135665e+6 0 7 Aug 2009 12:48:27 UTC skyplot / discuss 10 31427657 19.322754 13.478055 5814 (141/1682) 19 (0/0) 9613 (558/295) 2688 (38/1048) 0 -1.818493e+6 0 13 Aug 2009 5:19:59 UTC "1" and "10" look to be out on their own. For the others, there's groupings whereby multiple candidates look to be on adjacent RA or Dec positions. Is that for real, or just a quirk of recent sampling or an artefact of RFI counts? Keep searchin', Martin ____________ Mandriva Linux A user friendly OS! See new freedom Mageia2 The Future is what We make IT (GPLv3)
ID: 927294 ·

Johnney Guinness Volunteer tester Send message Joined: 11 Sep 06 Posts: 2944 Credit: 2,305,966 RAC: 330	Message 927295 - Posted: 19 Aug 2009, 22:51:08 UTC Last modified: 19 Aug 2009, 22:51:40 UTC
From the NitPicker FAQ; Q: Why are so many candidates at the same Declination? A: Quite often the telescope at Arecibo is "parked" when not in use by other projects. When it's parked it is sitting at a single line of Declination (while the Right Ascension changes due to earth rotation). However, since we are collecting all the time we get an excess of data from these parked Declinations (like 18, which is quite common). ************** I think thats the reason Martin. John. ____________
ID: 927295 ·

Gary Charpentier Volunteer tester Send message Joined: 25 Dec 00 Posts: 10315 Credit: 5,077,829 RAC: 6,013	Message 927312 - Posted: 20 Aug 2009, 0:30:53 UTC
I suspect this candidate will be gone soon. Looks like RFI on its waterfall plot. http://setiathome.berkeley.edu/ntpckr.php?c=sigplot&ra=2.63173699&dec=26.7393188&time=2454834.4742766&freq=1421126990.9889&sigtype=spike&sigid=1823209640 ____________
ID: 927312 ·

Jon Golding Send message Joined: 20 Apr 00 Posts: 52 Credit: 343,536 RAC: 6	Message 927544 - Posted: 20 Aug 2009, 20:42:26 UTC
How much of a diagonal sweep would an extraterrestrial source be expected to produce on these waterfall plots? Some plots seem to be very slightly diagonal; ending up at a fractionally smaller frequency than where they start out. However, I've no feeling for whether this very small frequency drift is interesting or is within the limits of what we'd expect to see for terrestrial RFI. ____________
ID: 927544 ·

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This is a discussion thread for SETI@home candidate # 921360 (located at RA: 2.630859 Dec: 26.714449)
Please feel to exchange thoughts, comments, questions and answers regarding this particular candidate.
For more information, please read the NTPCkr Frequently Asked Questions (FAQ).

ID: 927263 ·

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OK... I'll shoot some first-glance observations:

1 921360 2.630859 26.714449 9589 (309/2395) 1542 (27/673) 2394 (41/1003) 2635 (17/921) 0 -3.614816e+6 0 12 Aug 2009 15:08:24 UTC skyplot / discuss 2 20582818 22.973145 16.295956 9292 (389/2328) 1363 (18/620) 2583 (94/1005) 1126 (4/444) 0 -3.216304e+6 0 12 Aug 2009 23:16:30 UTC skyplot / discuss 3 20582801 22.987793 16.295956 11459 (524/2760) 1476 (21/698) 2717 (95/1076) 1478 (5/553) 0 -3.207500e+6 0 17 Aug 2009 16:23:16 UTC skyplot / discuss 4 20504996 23.165039 16.315388 9831 (430/2618) 454 (2/171) 1074 (18/459) 1502 (12/605) 0 -3.151631e+6 0 15 Aug 2009 19:47:23 UTC skyplot / discuss 5 20493683 23.144531 15.771995 11087 (485/2703) 1245 (15/552) 2255 (64/963) 1680 (11/659) 0 -3.052986e+6 0 13 Aug 2009 12:01:23 UTC skyplot / discuss 6 20499128 23.165039 15.771995 7685 (272/2128) 336 (0/134) 845 (16/342) 1161 (10/472) 0 -3.011546e+6 0 10 Aug 2009 13:34:35 UTC skyplot / discuss 7 20504975 23.167969 16.315388 7381 (277/2098) 405 (0/148) 954 (13/382) 1159 (3/470) 0 -2.880384e+6 0 15 Aug 2009 19:53:59 UTC skyplot / discuss 8 20496034 23.020020 16.295956 11081 (530/2724) 1573 (28/705) 2891 (89/1175) 1414 (1/548) 0 -2.427523e+6 0 13 Aug 2009 10:51:10 UTC skyplot / discuss 9 20504984 23.170898 16.315388 6539 (221/1805) 367 (0/136) 854 (14/365) 830 (4/345) 0 -2.135665e+6 0 7 Aug 2009 12:48:27 UTC skyplot / discuss 10 31427657 19.322754 13.478055 5814 (141/1682) 19 (0/0) 9613 (558/295) 2688 (38/1048) 0 -1.818493e+6 0 13 Aug 2009 5:19:59 UTC

"1" and "10" look to be out on their own.

For the others, there's groupings whereby multiple candidates look to be on adjacent RA or Dec positions. Is that for real, or just a quirk of recent sampling or an artefact of RFI counts?

Keep searchin',
Martin
____________
Mandriva Linux A user friendly OS!
See new freedom Mageia2
The Future is what We make IT (GPLv3)

ID: 927294 ·

Johnney Guinness

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From the NitPicker FAQ;

Q: Why are so many candidates at the same Declination?

A: Quite often the telescope at Arecibo is "parked" when not in use by other projects. When it's parked it is sitting at a single line of Declination (while the Right Ascension changes due to earth rotation). However, since we are collecting all the time we get an excess of data from these parked Declinations (like 18, which is quite common).

**************
I think thats the reason Martin.

John.
____________

ID: 927295 ·

Gary Charpentier

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I suspect this candidate will be gone soon. Looks like RFI on its waterfall plot.
http://setiathome.berkeley.edu/ntpckr.php?c=sigplot&ra=2.63173699&dec=26.7393188&time=2454834.4742766&freq=1421126990.9889&sigtype=spike&sigid=1823209640
____________

ID: 927312 ·

Jon Golding
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How much of a diagonal sweep would an extraterrestrial source be expected to produce on these waterfall plots?
Some plots seem to be very slightly diagonal; ending up at a fractionally smaller frequency than where they start out. However, I've no feeling for whether this very small frequency drift is interesting or is within the limits of what we'd expect to see for terrestrial RFI.
____________

ID: 927544 ·