Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between METOP-A and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 1/27/2012
Index Date Time (METOP-A) METOP-A Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 02/06/2012 17:33:24 75.86, -83.62 75.86, -99.36 426.39 18
2 02/06/2012 18:24:10 -75.68, 83.11 -75.65, 68.63 397.91 24
3 02/06/2012 19:14:57 75.33,-110.64 75.30,-122.99 347.57 33
4 02/06/2012 20:05:42 -75.19, 56.28 -75.18, 44.67 329.65 36
5 02/06/2012 20:56:28 74.88,-137.28 74.88,-147.14 285.81 43
6 02/06/2012 21:47:13 -74.75, 29.67 -74.76, 20.49 268.16 46
7 02/06/2012 22:37:58 74.48,-163.72 74.50,-171.49 230.91 51
8 02/06/2012 23:28:42 -74.39, 3.38 -74.38, -3.87 216.92 53
9 02/07/2012 00:19:26 74.17, 170.14 74.16, 164.00 186.30 56
10 02/07/2012 01:10:11 -74.03, -22.87 -74.05, -28.40 169.07 59
11 02/07/2012 02:00:55 73.80, 143.91 73.83, 139.45 138.24 62
12 02/07/2012 02:51:39 -73.72, -48.97 -73.71, -52.96 124.63 64
13 02/07/2012 03:42:23 73.48, 117.83 73.49, 114.87 93.55 67
14 02/07/2012 04:33:07 -73.40, -75.04 -73.42, -77.67 83.64 68
15 02/07/2012 05:23:50 73.22, 91.89 73.19, 90.15 55.86 70
16 02/07/2012 06:14:34 -73.13,-100.97 -73.13,-102.40 46.04 71
17 02/07/2012 07:05:18 72.90, 65.85 72.90, 65.41 14.58 74
18 02/07/2012 07:56:02 -72.81,-126.99 -72.84,-127.15 5.60 75
19 02/07/2012 08:46:42 72.78, 40.26 72.76, 40.33 3.18 71
20 02/07/2012 09:37:23 -72.80,-152.37 -72.80,-152.43 2.01 68
21 02/07/2012 10:28:03 72.76, 14.89 72.77, 14.94 2.00 63
22 02/07/2012 11:18:45 -72.78,-177.75 -72.75,-177.72 3.00 61
23 02/07/2012 12:09:24 72.79, -10.39 72.77, -10.45 2.86 54
24 02/07/2012 13:00:07 -72.76, 156.88 -72.76, 156.89 0.47 53
25 02/07/2012 13:50:46 72.77, -35.76 72.78, -35.84 2.81 46
26 02/07/2012 14:41:29 -72.74, 131.50 -72.77, 131.50 2.99 45
27 02/07/2012 15:32:08 72.75, -61.14 72.74, -61.13 1.69 39
28 02/07/2012 16:22:51 -72.73, 106.12 -72.73, 106.21 2.95 38
29 02/07/2012 17:13:30 72.74, -86.52 72.75, -86.52 1.31 31
30 02/07/2012 18:04:12 -72.76, 80.85 -72.74, 80.82 2.62 29
31 02/07/2012 18:54:52 72.72,-111.90 72.71,-111.81 3.17 24
32 02/07/2012 19:45:34 -72.74, 55.47 -72.74, 55.43 1.60 21
33 02/07/2012 20:36:14 72.70,-137.27 72.71,-137.20 2.84 16
34 02/07/2012 21:26:56 -72.72, 30.10 -72.70, 30.14 2.62 14
35 02/07/2012 22:17:35 72.73,-162.54 72.72,-162.59 1.95 7
36 02/07/2012 23:08:18 -72.70, 4.72 -72.71, 4.75 1.19 6
37 02/07/2012 23:58:57 72.72, 172.08 72.73, 172.01 2.80 1
38 02/08/2012 00:49:39 -72.74, -20.55 -72.72, -20.64 3.60 3
39 02/08/2012 01:40:19 72.70, 146.70 72.69, 146.73 1.20 8
40 02/08/2012 02:31:02 -72.67, -46.03 -72.68, -45.93 3.52 9
41 02/08/2012 03:21:41 72.68, 121.32 72.70, 121.33 2.17 16
42 02/08/2012 04:12:23 -72.70, -71.31 -72.69, -71.32 1.82 18
43 02/08/2012 05:03:03 72.66, 95.95 72.66, 96.05 3.36 23
44 02/08/2012 05:53:45 -72.68, -96.68 -72.69, -96.72 1.62 26
45 02/08/2012 06:44:24 72.69, 70.67 72.67, 70.65 3.29 32
46 02/08/2012 07:35:07 -72.67,-122.06 -72.65,-122.00 2.38 33
47 02/08/2012 08:25:46 72.68, 45.30 72.67, 45.26 1.17 40
48 02/08/2012 09:16:29 -72.65,-147.44 -72.66,-147.40 1.99 41
49 02/08/2012 10:07:08 72.66, 19.92 72.68, 19.87 3.18 48
50 02/08/2012 10:57:50 -72.68,-172.71 -72.67,-172.79 2.87 50
51 02/08/2012 11:48:30 72.64, -5.46 72.64, -5.42 1.30 55
52 02/08/2012 12:39:12 -72.66, 161.91 -72.68, 161.82 3.54 58
53 02/08/2012 13:29:52 72.62, -30.83 72.65, -30.81 3.13 63
54 02/08/2012 14:20:34 -72.64, 136.54 -72.64, 136.53 0.99 65
55 02/08/2012 15:11:13 72.65, -56.11 72.66, -56.20 3.19 72
56 02/08/2012 16:01:56 -72.63, 111.16 -72.64, 111.14 2.09 73
57 02/08/2012 16:52:39 72.43, -81.90 72.46, -81.18 24.16 72
58 02/08/2012 17:43:23 -72.35, 85.27 -72.40, 86.26 33.52 71
59 02/08/2012 18:34:07 72.11,-107.87 72.16,-105.97 65.15 68
60 02/08/2012 19:24:50 -72.08, 59.40 -72.10, 61.46 70.48 68
61 02/08/2012 20:15:34 71.83,-133.73 71.86,-130.78 102.37 65
62 02/08/2012 21:06:18 -71.76, 33.45 -71.80, 36.65 111.32 64
63 02/08/2012 21:57:02 71.50,-159.67 71.51,-155.51 146.71 60
64 02/08/2012 22:47:46 -71.43, 7.52 -71.50, 11.82 152.18 60
65 02/08/2012 23:38:31 71.12, 174.32 71.21, 179.65 191.38 55
66 02/09/2012 00:29:14 -71.10, -18.39 -71.15, -12.94 196.26 55
67 02/09/2012 01:19:59 70.79, 148.42 70.80, 154.96 239.04 49
68 02/09/2012 02:10:43 -70.71, -44.37 -70.74, -37.63 247.35 48
69 02/09/2012 03:01:29 70.35, 122.38 70.39, 130.25 293.95 41
70 02/09/2012 03:52:13 -70.28, -70.41 -70.33, -62.35 302.04 40
71 02/09/2012 04:43:00 69.85, 96.28 69.92, 105.59 355.86 31
72 02/09/2012 05:33:44 -69.78, -96.50 -69.81, -86.93 367.06 29
73 02/09/2012 06:24:34 69.19, 69.99 69.24, 81.20 442.09 14

Figure of METOP-A and NPP satellite orbits during SNOs since TLE Epoch: 1/27/2012
SNOs_Map_METOP-A_NPP_20120128.jpg