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North Yorkshire - Iridium Flares


Tyneside, UK
2015 Aug 30
Sunday, Day 242

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Iridium Flares
Pick the Closest:















Astronomy in Yorkshire:


Very Much an "Identified Flying Object"

Occasionally something in the sky will catch your eye, like a slowly moving light that gets very bright and then fades away, all in the space of about five seconds. The chances are that you have spotted one of the sixty or so "Iridium" satellites in orbit.

iridium panelIridiums are fitted with a large, flat and highly polished panel behind behind each of their three aerials. They can occasionally produce glints that nearly rival the Full Moon in brightness.

Because of the very controlled way in which way the satellites orient themselves in space, Iridium 'flares' are highly predictable. Those in the know can wait for them and can be looking in the right direction when they occur.

The table tells you which direction to look and the maximum brightness (Visual Magnitude) to expect. The more negative the figure, the brighter it will be. For comparison, the brightest stars in the Sky are magnitude -1, Venus at its most brilliant is -4 and a Full Moon is -11.

Sometimes the flare will be a little brighter or dimmer than expected because of minor deviations in the satellite's orientation.


All Locations

One thing you can do is see how different the same flare appears from a location a few miles away. It might be dimmer, brighter, and it might happen a few seconds earlier or later as the satellite travels round its orbit. It takes nearly 15 seconds for a flare event to travel across Yorkshire.

Times are local UK so will show Summer Time when it is in force.

Date Location Iridium
Number
Time
BST
Visual
Mag
Azimuth Elevation Reflector
August 29, SatYork 8 05:55:09
-3
187° (S)
66°
LH aerial
Whitby 65 22:31:38
-2
47° (NE)
34°
RH aerial
Sutton Bank 65 22:31:39
-7
47° (NE)
32°
RH aerial
Dalby Forest 65 22:31:42
-2
47° (NE)
33°
RH aerial
Scarborough 65 22:31:43
-1
47° (NE)
34°
RH aerial
Malton 65 22:31:44
-3
47° (NE)
33°
RH aerial
York 65 22:31:45
-6
47° (NE)
32°
RH aerial
Bridlington 65 22:31:48
-1
48° (NE)
34°
RH aerial
Bridlington 77 23:40:24
-1
252° (WSW)
23°
Middle aerial
Bridlington 15 23:49:24
-3
253° (WSW)
20°
Middle aerial
York 15 23:49:24
-4
252° (WSW)
21°
Middle aerial
Malton 15 23:49:28
-7
253° (WSW)
21°
Middle aerial
Scarborough 15 23:49:30
-4
253° (WSW)
20°
Middle aerial
Dalby Forest 15 23:49:31
-6
253° (WSW)
21°
Middle aerial
Sutton Bank 15 23:49:32
-4
253° (WSW)
22°
Middle aerial
Whitby 15 23:49:35
-5
253° (WSW)
21°
Middle aerial
York 81 23:58:21
-1
254° (WSW)
17°
Middle aerial
Sutton Bank 81 23:58:29
-1
254° (WSW)
18°
Middle aerial
August 30, SunMalton 76 02:52:12
-1
306° (NW)
21°
LH aerial
Sutton Bank 76 02:52:13
-1
306° (NW)
21°
LH aerial
York 76 02:52:18
-1
306° (NW)
21°
LH aerial
Sutton Bank 55 04:12:07
-2
264° (W)
52°
LH aerial
Malton 55 04:12:10
-1
264° (W)
50°
LH aerial
York 55 04:12:13
-2
264° (W)
51°
LH aerial
Whitby 61 05:48:50
-4
190° (S)
66°
LH aerial
Dalby Forest 61 05:48:53
-5
190° (S)
66°
LH aerial
Scarborough 61 05:48:54
-2
193° (SSW)
66°
LH aerial
Sutton Bank 61 05:48:54
-1
183° (S)
66°
LH aerial
Bridlington 61 05:48:57
-1
195° (SSW)
66°
LH aerial
Malton 61 05:48:56
-6
188° (S)
66°
LH aerial
York 61 05:48:59
-2
184° (S)
66°
LH aerial
Sutton Bank 56 20:48:56
-1
351° (N)
33°
LH aerial
Bridlington 63 22:21:11
-1
49° (NE)
31°
RH aerial
Whitby 68 22:25:38
-8
49° (NE)
33°
RH aerial
Sutton Bank 68 22:25:39
-2
49° (NE)
32°
RH aerial
Dalby Forest 68 22:25:41
-6
49° (NE)
33°
RH aerial
Scarborough 68 22:25:43
-4
49° (NE)
34°
RH aerial
Malton 68 22:25:43
-4
49° (NE)
33°
RH aerial
York 68 22:25:45
-2
49° (NE)
32°
RH aerial
Bridlington 68 22:25:47
-2
49° (NE)
34°
RH aerial
Bridlington 41 23:43:24
-2
254° (WSW)
21°
Middle aerial
Malton 41 23:43:27
-1
254° (WSW)
22°
Middle aerial
Scarborough 41 23:43:29
-1
254° (WSW)
21°
Middle aerial
Dalby Forest 41 23:43:30
-1
254° (WSW)
22°
Middle aerial
Whitby 41 23:43:35
-1
254° (WSW)
22°
Middle aerial
Bridlington 43 23:52:26
-2
256° (WSW)
17°
Middle aerial
York 43 23:52:26
-5
255° (WSW)
18°
Middle aerial
Malton 43 23:52:29
-3
255° (WSW)
18°
Middle aerial
Scarborough 43 23:52:31
-2
256° (WSW)
18°
Middle aerial
Dalby Forest 43 23:52:32
-2
256° (WSW)
18°
Middle aerial
Sutton Bank 43 23:52:33
-5
255° (WSW)
19°
Middle aerial
Whitby 43 23:52:37
-2
256° (WSW)
18°
Middle aerial
August 31, MonWhitby 46 02:46:02
-5
307° (NW)
21°
LH aerial
Scarborough 46 02:46:05
-4
307° (NW)
21°
LH aerial
Dalby Forest 46 02:46:07
-7
306° (NW)
21°
LH aerial
Bridlington 46 02:46:07
-3
307° (NW)
20°
LH aerial
Malton 46 02:46:10
-6
306° (NW)
21°
LH aerial
Sutton Bank 46 02:46:11
-3
306° (NW)
22°
LH aerial
York 46 02:46:16
-3
306° (NW)
22°
LH aerial
Whitby 29 04:04:57
-4
266° (W)
51°
LH aerial
Scarborough 29 04:05:01
-2
266° (W)
50°
LH aerial
Dalby Forest 29 04:05:01
-4
265° (W)
51°
LH aerial
Sutton Bank 29 04:05:01
-2
265° (W)
53°
LH aerial
Malton 29 04:05:03
-6
265° (W)
52°
LH aerial
Bridlington 29 04:05:05
-1
265° (W)
49°
LH aerial
York 29 04:05:07
-3
264° (W)
53°
LH aerial
Whitby 31 04:06:01
-2
266° (W)
51°
LH aerial
Scarborough 31 04:06:05
-2
266° (W)
50°
LH aerial
Dalby Forest 31 04:06:05
-3
265° (W)
51°
LH aerial
Sutton Bank 31 04:06:05
-3
265° (W)
53°
LH aerial
Malton 31 04:06:08
-4
265° (W)
51°
LH aerial
Bridlington 31 04:06:09
-1
265° (W)
49°
LH aerial
York 31 04:06:11
-4
264° (W)
52°
LH aerial
Whitby 35 05:42:50
-4
191° (S)
66°
LH aerial
Scarborough 35 05:42:53
-6
193° (SSW)
66°
LH aerial
Dalby Forest 35 05:42:53
-3
190° (S)
66°
LH aerial
Malton 35 05:42:55
-2
189° (S)
67°
LH aerial
Bridlington 35 05:42:57
-3
196° (SSW)
66°
LH aerial
Bridlington 53 20:33:28
-1
354° (N)
36°
LH aerial
Whitby 75 22:19:37
-2
50° (NE)
33°
RH aerial
Dalby Forest 75 22:19:41
-2
51° (NE)
33°
RH aerial
Scarborough 75 22:19:42
-3
51° (NE)
34°
RH aerial
Malton 75 22:19:43
-1
51° (NE)
33°
RH aerial
Bridlington 75 22:19:47
-5
51° (NE)
34°
RH aerial
York 40 23:46:28
-1
256° (WSW)
19°
Middle aerial
Bridlington 40 23:46:29
-4
256° (WSW)
18°
Middle aerial
Malton 40 23:46:33
-2
256° (WSW)
19°
Middle aerial
Scarborough 40 23:46:34
-3
257° (WSW)
19°
Middle aerial
Dalby Forest 40 23:46:36
-2
256° (WSW)
19°
Middle aerial
Sutton Bank 40 23:46:36
-1
256° (WSW)
20°
Middle aerial
Whitby 40 23:46:40
-3
257° (WSW)
19°
Middle aerial
Bridlington 39 23:55:23
-1
258° (WSW)
15°
Middle aerial
York 39 23:55:23
-3
257° (WSW)
16°
Middle aerial
Malton 39 23:55:26
-2
258° (WSW)
16°
Middle aerial
Scarborough 39 23:55:29
-1
258° (WSW)
16°
Middle aerial
Dalby Forest 39 23:55:30
-2
258° (WSW)
16°
Middle aerial
Sutton Bank 39 23:55:30
-3
257° (WSW)
16°
Middle aerial
Whitby 39 23:55:34
-1
258° (WSW)
16°
Middle aerial
September 1, TueWhitby 49 02:39:46
-1
309° (NW)
20°
LH aerial
Scarborough 49 02:39:48
-2
309° (NW)
20°
LH aerial
Dalby Forest 49 02:39:50
-1
309° (NW)
20°
LH aerial
Bridlington 49 02:39:51
-2
309° (NW)
20°
LH aerial
Malton 49 02:39:54
-1
308° (NW)
20°
LH aerial
Dalby Forest 11 02:48:45
-1
310° (NW)
17°
LH aerial
Malton 11 02:48:49
-1
310° (NW)
18°
LH aerial
Sutton Bank 11 02:48:50
-2
310° (NW)
18°
LH aerial
York 11 02:48:55
-2
309° (NW)
18°
LH aerial
Whitby 91 03:59:57
-2
265° (W)
53°
LH aerial
Scarborough 91 04:00:01
-2
265° (W)
52°
LH aerial
Dalby Forest 91 04:00:01
-1
265° (W)
53°
LH aerial
Malton 91 04:00:04
-1
264° (W)
54°
LH aerial
Bridlington 91 04:00:05
-4
265° (W)
52°
LH aerial
Scarborough 6 05:36:34
-1
189° (S)
67°
LH aerial
Bridlington 6 05:36:38
-2
191° (S)
66°
LH aerial
Bridlington 54 20:27:16
-2
354° (N)
38°
LH aerial
Sutton Bank 64 22:22:59
-1
53° (NE)
38°
RH aerial
York 64 22:23:05
-1
53° (NE)
38°
RH aerial
York 15 23:49:31
-2
259° (W)
16°
Middle aerial
Bridlington 15 23:49:32
-5
260° (W)
15°
Middle aerial
Malton 15 23:49:35
-3
260° (W)
16°
Middle aerial
Scarborough 15 23:49:38
-4
260° (W)
16°
Middle aerial
Dalby Forest 15 23:49:38
-3
260° (W)
16°
Middle aerial
Sutton Bank 15 23:49:39
-2
260° (W)
17°
Middle aerial
Whitby 15 23:49:43
-4
260° (W)
16°
Middle aerial
York 81 23:58:32
-3
261° (W)
13°
Middle aerial
Bridlington 81 23:58:32
-1
261° (W)
13°
Middle aerial
Malton 81 23:58:36
-2
261° (W)
13°
Middle aerial
Scarborough 81 23:58:38
-1
262° (W)
13°
Middle aerial
Dalby Forest 81 23:58:39
-2
261° (W)
13°
Middle aerial
Sutton Bank 81 23:58:39
-3
261° (W)
14°
Middle aerial
Whitby 81 23:58:44
-1
262° (W)
13°
Middle aerial
September 2, WedYork 42 00:03:28
-1
261° (W)
12°
Middle aerial
Malton 42 00:03:32
-1
262° (W)
12°
Middle aerial
Sutton Bank 42 00:03:36
-1
262° (W)
13°
Middle aerial
Whitby 59 03:53:45
-1
267° (W)
52°
LH aerial
Scarborough 59 03:53:48
-1
267° (W)
52°
LH aerial
Bridlington 59 03:53:52
-2
267° (W)
51°
LH aerial
Sutton Bank 4 05:38:03
-1
208° (SSW)
64°
LH aerial
York 4 05:38:09
-1
208° (SSW)
63°
LH aerial
Sutton Bank 37 05:39:51
-1
206° (SSW)
64°
LH aerial
York 37 05:39:57
-1
206° (SSW)
64°
LH aerial
Bridlington 83 20:21:07
-6
352° (N)
39°
LH aerial
Malton 83 20:21:06
-1
354° (N)
40°
LH aerial
Dalby Forest 83 20:21:08
-1
354° (N)
40°
LH aerial
Scarborough 83 20:21:09
-3
353° (N)
40°
LH aerial
Whitby 83 20:21:12
-1
354° (N)
40°
LH aerial
Bridlington 66 22:07:51
-1
55° (NE)
35°
RH aerial
Whitby 67 22:16:59
-1
54° (NE)
40°
RH aerial
Sutton Bank 67 22:17:01
-3
55° (NE)
38°
RH aerial
Dalby Forest 67 22:17:02
-1
55° (NE)
39°
RH aerial
Malton 67 22:17:04
-1
55° (NE)
39°
RH aerial
York 67 22:17:06
-2
55° (NE)
38°
RH aerial
York 43 23:52:36
-2
262° (W)
14°
Middle aerial
Bridlington 43 23:52:38
-4
263° (W)
13°
Middle aerial
Malton 43 23:52:40
-3
262° (W)
14°
Middle aerial
Scarborough 43 23:52:43
-4
263° (W)
14°
Middle aerial
Dalby Forest 43 23:52:44
-3
263° (W)
14°
Middle aerial
Sutton Bank 43 23:52:44
-2
262° (W)
15°
Middle aerial
Whitby 43 23:52:49
-4
263° (W)
14°
Middle aerial
September 3, ThuYork 18 00:01:37
-4
263° (W)
12°
Middle aerial
Bridlington 18 00:01:39
-2
264° (W)
11°
Middle aerial
Malton 18 00:01:41
-3
264° (W)
12°
Middle aerial
Scarborough 18 00:01:44
-2
264° (W)
11°
Middle aerial
Sutton Bank 18 00:01:45
-3
263° (W)
12°
Middle aerial
Dalby Forest 18 00:01:45
-2
264° (W)
12°
Middle aerial
Whitby 18 00:01:50
-2
264° (W)
12°
Middle aerial
Whitby 46 02:45:17
-2
314° (NW)
15°
LH aerial
Scarborough 46 02:45:20
-1
314° (NW)
14°
LH aerial
Bridlington 46 02:45:21
-1
314° (NW)
14°
LH aerial
Dalby Forest 46 02:45:22
-2
314° (NW)
15°
LH aerial
Malton 46 02:45:26
-3
314° (NW)
15°
LH aerial
Sutton Bank 46 02:45:27
-6
313° (NW)
15°
LH aerial
York 46 02:45:32
-7
313° (NW)
15°
LH aerial
Whitby 45 03:56:52
-1
270° (W)
45°
LH aerial
Dalby Forest 45 03:56:56
-1
270° (W)
45°
LH aerial
Sutton Bank 45 03:56:56
-3
269° (W)
47°
LH aerial
Malton 45 03:56:58
-1
270° (W)
45°
LH aerial
York 45 03:57:02
-2
269° (W)
46°
LH aerial
Dalby Forest 34 05:33:50
-1
211° (SSW)
63°
LH aerial
Sutton Bank 34 05:33:50
-4
206° (SSW)
65°
LH aerial
Malton 34 05:33:53
-1
210° (SSW)
63°
LH aerial
York 34 05:33:56
-3
206° (SSW)
64°
LH aerial

The data for these predictions are provided by Simone Corbellini, a mathematician and satellite observer who lives in Italy. His own website covers satellite observing and flares in more depth. You can get there from the left hand menu.

Copyright © Robert Christy, all rights reserved
Reproduction in whole or in part without permission is prohibited