Zarya - Soviet, Russian and International Spaceflight
carousel image
 
North Yorkshire - Iridium Flares


Scarborough, UK
2014 Oct 21
Tuesday, Day 294

Maintained by:




For schools, clubs and societies - space exploration and history






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
October 20, MonMalton 20 19:25:19
-1
13° (NNE)
48°
LH aerial
Bridlington 45 20:16:45
-1
8° (N)
28°
LH aerial
Malton 45 20:16:46
-8
10° (N)
28°
LH aerial
Scarborough 45 20:16:49
-2
9° (N)
28°
LH aerial
Dalby Forest 45 20:16:49
-5
10° (N)
28°
LH aerial
Whitby 45 20:16:53
-4
10° (N)
28°
LH aerial
October 21, TueSutton Bank 60 07:49:43
-2
72° (ENE)
30°
Middle aerial
York 3 19:19:07
-9
17° (NNE)
49°
LH aerial
Malton 3 19:19:10
-2
16° (NNE)
49°
LH aerial
Scarborough 3 19:19:12
-1
14° (NNE)
50°
LH aerial
Dalby Forest 3 19:19:12
-2
16° (NNE)
49°
LH aerial
Sutton Bank 3 19:19:12
-4
18° (NNE)
49°
LH aerial
Whitby 3 19:19:16
-2
15° (NNE)
49°
LH aerial
October 22, WedDalby Forest 46 06:37:27
-1
165° (SSE)
36°
LH aerial
Sutton Bank 46 06:37:29
-7
163° (SSE)
35°
LH aerial
Malton 46 06:37:30
-1
165° (SSE)
36°
LH aerial
York 46 06:37:33
-4
163° (SSE)
36°
LH aerial
Scarborough 95 07:34:19
-1
69° (ENE)
27°
Middle aerial
Bridlington 95 07:34:24
-1
69° (ENE)
27°
Middle aerial
York 76 19:12:57
-4
18° (NNE)
51°
LH aerial
Malton 76 19:13:01
-2
16° (NNE)
51°
LH aerial
Dalby Forest 76 19:13:03
-1
16° (NNE)
51°
LH aerial
Sutton Bank 76 19:13:03
-9
19° (NNE)
51°
LH aerial
Whitby 76 19:13:07
-1
15° (NNE)
51°
LH aerial
October 23, ThuWhitby 49 06:31:21
-2
168° (SSE)
36°
LH aerial
Scarborough 49 06:31:24
-1
169° (S)
36°
LH aerial
Dalby Forest 49 06:31:25
-2
167° (SSE)
36°
LH aerial
Malton 49 06:31:28
-3
167° (SSE)
36°
LH aerial
Sutton Bank 49 06:31:27
-3
165° (SSE)
35°
LH aerial
York 49 06:31:32
-4
165° (SSE)
35°
LH aerial
Sutton Bank 45 07:12:46
-1
146° (SE)
28°
LH aerial
York 45 07:12:50
-1
146° (SE)
28°
LH aerial
Whitby 30 07:28:05
-4
67° (ENE)
27°
Middle aerial
Dalby Forest 30 07:28:08
-6
67° (ENE)
27°
Middle aerial
Sutton Bank 30 07:28:07
-2
67° (ENE)
26°
Middle aerial
Scarborough 30 07:28:09
-3
67° (ENE)
27°
Middle aerial
Malton 30 07:28:10
-5
67° (ENE)
26°
Middle aerial
Bridlington 30 07:28:14
-3
68° (ENE)
27°
Middle aerial
York 30 07:28:13
-2
67° (ENE)
26°
Middle aerial
Bridlington 46 19:06:51
-1
17° (NNE)
53°
LH aerial
York 46 19:06:50
-2
22° (NNE)
51°
LH aerial
Malton 46 19:06:53
-5
20° (NNE)
51°
LH aerial
Scarborough 46 19:06:55
-3
18° (NNE)
52°
LH aerial
Dalby Forest 46 19:06:56
-7
19° (NNE)
51°
LH aerial
Sutton Bank 46 19:06:56
-1
22° (NNE)
51°
LH aerial
Whitby 46 19:06:59
-6
19° (NNE)
52°
LH aerial
October 24, FriWhitby 22 06:25:18
-1
165° (SSE)
35°
LH aerial
Scarborough 22 06:25:21
-1
165° (SSE)
35°
LH aerial
Bridlington 22 06:25:24
-3
166° (SSE)
35°
LH aerial
Whitby 57 07:21:57
-1
66° (ENE)
26°
Middle aerial
Sutton Bank 57 07:21:58
-3
65° (ENE)
25°
Middle aerial
Dalby Forest 57 07:21:59
-1
66° (ENE)
26°
Middle aerial
Scarborough 57 07:22:01
-1
66° (ENE)
27°
Middle aerial
Malton 57 07:22:02
-2
66° (ENE)
26°
Middle aerial
York 57 07:22:04
-4
66° (ENE)
25°
Middle aerial
York 49 19:00:41
-7
21° (NNE)
54°
LH aerial
Malton 49 19:00:44
-3
19° (NNE)
54°
LH aerial
Scarborough 49 19:00:47
-1
17° (NNE)
55°
LH aerial
Dalby Forest 49 19:00:47
-2
19° (NNE)
54°
LH aerial
Sutton Bank 49 19:00:47
-4
22° (NNE)
53°
LH aerial
Whitby 49 19:00:50
-2
18° (NNE)
54°
LH aerial
October 25, SatScarborough 25 06:19:19
-1
168° (SSE)
35°
LH aerial
Bridlington 25 06:19:21
-2
168° (SSE)
36°
LH aerial
Whitby 59 07:06:29
-5
62° (ENE)
23°
Middle aerial
Sutton Bank 59 07:06:30
-1
62° (ENE)
22°
Middle aerial
Dalby Forest 59 07:06:32
-3
62° (ENE)
22°
Middle aerial
Malton 59 07:06:34
-2
62° (ENE)
22°
Middle aerial
York 59 07:06:36
-1
62° (ENE)
22°
Middle aerial
Bridlington 59 07:06:38
-6
63° (ENE)
23°
Middle aerial
York 22 18:54:35
-1
26° (NNE)
53°
LH aerial
October 26, SunSutton Bank 20 05:22:21
-2
175° (S)
36°
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