Thanks to all who wrote with ideas as to what may be wrong with my Orbitron pass calculations. Here is what I am showing for the remainder of my stay, and they now seem consistent with the AMSAT page. I'll give it a try at 1100.

73, Bill

Satellite passes / Orbitron 3.71 / www.stoff.pl

Location : Montego Bay (77.0000° W, 18.5000° N) Time zone : UTC Search period : 2009-12-13 03:46:48 - 3 days 2009-12-16 03:46:48 Conditions : Maximum sun elevation = None Minimum sat elevation = 4 deg Illumination NOT required

Time Satellite Azm Elv Mag Range S.Azm S.Elv -------------------------------------------------------------------------- 2009-12-13 11:01:05 ECHO (AO-51) 6.3 4.0 12.1 2933 112.0 -7.4 2009-12-13 11:07:43 ECHO (AO-51) 283.4 67.1 9.5 865 112.5 -6.0 2009-12-13 11:14:11 ECHO (AO-51) 199.7 4.0 12.2 2860 112.9 -4.6

2009-12-13 13:01:15 SAUDISAT 1C (SO-50) 185.1 4.0 13.3 2640 123.0 18.0 2009-12-13 13:07:10 SAUDISAT 1C (SO-50) 111.2 39.7 11.1 1001 123.7 19.1 2009-12-13 13:13:00 SAUDISAT 1C (SO-50) 37.8 4.0 13.0 2613 124.4 20.3

2009-12-13 14:43:20 SAUDISAT 1C (SO-50) 251.7 4.0 13.2 2633 139.5 36.3 2009-12-13 14:47:53 SAUDISAT 1C (SO-50) 300.1 13.7 12.4 1866 140.5 37.0 2009-12-13 14:52:25 SAUDISAT 1C (SO-50) 349.0 4.0 13.0 2605 141.5 37.7

2009-12-13 18:42:44 EYESAT-1 (AO-27) 154.5 4.0 12.2 2883 211.4 41.7 2009-12-13 18:49:08 EYESAT-1 (AO-27) 75.7 52.4 9.3 972 213.1 40.9 2009-12-13 18:55:31 EYESAT-1 (AO-27) 357.4 4.0 11.1 2880 214.6 40.0

2009-12-13 20:24:38 EYESAT-1 (AO-27) 223.6 4.0 12.1 2888 231.8 25.4 2009-12-13 20:28:43 EYESAT-1 (AO-27) 263.1 10.3 11.3 2343 232.4 24.7 2009-12-13 20:32:49 EYESAT-1 (AO-27) 302.7 4.0 11.4 2885 233.0 23.9

2009-12-13 22:02:24 ECHO (AO-51) 150.3 4.0 12.3 2731 243.2 5.9 2009-12-13 22:08:20 ECHO (AO-51) 75.3 42.8 10.1 1041 243.7 4.7 2009-12-13 22:14:29 ECHO (AO-51) 0.9 4.0 12.1 2835 244.2 3.4

2009-12-13 23:26:15 SAUDISAT 1C (SO-50) 357.4 4.0 12.2 2507 249.4 -12.4 2009-12-13 23:31:29 SAUDISAT 1C (SO-50) 62.4 25.0 10.6 1260 249.7 -13.6 2009-12-13 23:36:41 SAUDISAT 1C (SO-50) 127.1 4.0 ecl 2501 250.0 -14.8

2009-12-13 23:43:03 ECHO (AO-51) 220.8 4.0 12.3 2737 250.4 -16.2 2009-12-13 23:47:13 ECHO (AO-51) 264.1 11.6 11.7 2143 250.6 -17.1 2009-12-13 23:51:29 ECHO (AO-51) 307.2 4.0 12.2 2809 250.9 -18.1

2009-12-14 01:07:13 SAUDISAT 1C (SO-50) 305.7 4.0 12.2 2501 254.2 -35.2 2009-12-14 01:11:55 SAUDISAT 1C (SO-50) 250.7 17.7 11.1 1548 254.3 -36.3 2009-12-14 01:16:39 SAUDISAT 1C (SO-50) 195.1 4.0 ecl 2502 254.5 -37.3

2009-12-14 07:08:08 EYESAT-1 (AO-27) 20.1 4.0 ecl 2880 104.6 -60.4 2009-12-14 07:14:35 EYESAT-1 (AO-27) 101.5 56.5 ecl 931 104.5 -58.9 2009-12-14 07:21:01 EYESAT-1 (AO-27) 182.1 4.1 ecl 2880 104.4 -57.4

2009-12-14 08:49:41 EYESAT-1 (AO-27) 327.8 4.0 ecl 2879 105.6 -37.1 2009-12-14 08:53:37 EYESAT-1 (AO-27) 290.0 10.0 ecl 2360 105.7 -36.2 2009-12-14 08:57:35 EYESAT-1 (AO-27) 251.8 4.0 ecl 2884 105.8 -35.3

2009-12-14 10:21:59 ECHO (AO-51) 24.4 4.0 12.1 2927 109.6 -16.2 2009-12-14 10:28:25 ECHO (AO-51) 99.6 42.8 10.1 1112 110.0 -14.8 2009-12-14 10:34:41 ECHO (AO-51) 175.1 4.0 12.2 2851 110.4 -13.4

2009-12-14 11:52:41 SAUDISAT 1C (SO-50) 141.4 4.0 13.2 2642 116.0 3.8 2009-12-14 11:56:02 SAUDISAT 1C (SO-50) 107.9 8.2 12.8 2260 116.3 4.5 2009-12-14 11:59:21 SAUDISAT 1C (SO-50) 74.6 4.0 13.1 2627 116.6 5.2

2009-12-14 12:01:58 ECHO (AO-51) 336.1 4.0 12.1 2927 116.8 5.7 2009-12-14 12:06:47 ECHO (AO-51) 289.1 14.2 11.4 2100 117.2 6.7 2009-12-14 12:11:34 ECHO (AO-51) 241.3 4.0 12.2 2878 117.7 7.7

2009-12-14 13:30:13 SAUDISAT 1C (SO-50) 213.1 4.1 13.1 2637 126.8 23.5 2009-12-14 13:36:18 SAUDISAT 1C (SO-50) 294.4 57.7 10.5 790 127.6 24.6 2009-12-14 13:42:20 SAUDISAT 1C (SO-50) 16.9 4.0 12.9 2607 128.5 25.7

--- On Sat, 12/12/09, Bill Dzurilla billdz.geo@yahoo.com wrote:

From: Bill Dzurilla billdz.geo@yahoo.com Subject: Re: AMSAT-BB Digest, Vol 4, Issue 652 To: amsat-bb@amsat.org Cc: fm-satellite@yahoogroups.com Date: Saturday, December 12, 2009, 7:16 PM Rick,

I've been using Orbitron but I see it is not matching the times on the AMSAT Pass Predictions, so you must be correct.  I have downloaded fresh info with Orbitron's TLE Updater so I'm not sure what's wrong, some type of issue with the program or what.

I'll try AO-51 tomorrow morning using the times on the AMSAT page.

73, Bill

...

Hi Bill,

Check your times and passes.  According to my

program,

...

the first pass hit you at 0540 (1140utc) and was long gone when you listened at

6am.

...

Also, the next pass of A0-51 totally missed you to the west.  Someone else might want to verify my findings.

73 to all, Rick WA4NVM

I was on this morning for the AO-51 passes at 6am and 7:40am local time but did not hear the bird at all.  Guess there must be some problem with my HT or the Arrow antenna.  Sorry, folks.

73 from Jamaica, Bill NZ5N

--- On Thu, 12/10/09, Bill Dzurilla billdz.geo@yahoo.com wrote:

...

From: Bill Dzurilla billdz.geo@yahoo.com Subject: NZ5N on this weekend from Jamaica FK18 To: amsat-bb@amsat.org Cc: fm-satellite@yahoogroups.com Date: Thursday, December 10, 2009, 3:26 PM In case anyone missed me last year, I'll again be taking by HT and Arrow antenna to

Jamaica this

...

weekend. It's a business trip so I can't predict

when

...

...

I'll be on, but arriving Friday afternoon and

leaving

...

Monday

...

noon. Please send s.a.s.e. if you work me and

want a

...

...

QSL, or use LOTW/eQSL.

73, Bill NZ5N