Simultaneous Nadir Overpasses (SNOs) Predictions

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

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/14/2025
Index Date (METOP-B) Time (METOP-B) Lat,Lon (METOP-B) SZA (METOP-B ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 04/19/2025 17:42:07 74.79, -94.72 63.46 04/19/2025 17:41:01 74.78, -98.03 63.65 96.56 66
2 04/19/2025 18:32:51 -74.67, 72.30 116.65 04/19/2025 18:31:43 -74.69, 69.55 116.47 80.72 68
3 04/19/2025 19:23:35 74.48,-120.88 63.17 04/19/2025 19:22:25 74.49,-122.61 63.30 51.56 70
4 04/19/2025 20:14:19 -74.36, 46.15 116.94 04/19/2025 20:13:07 -74.40, 44.95 116.83 36.07 72
5 04/19/2025 21:05:03 74.16,-147.01 62.88 04/19/2025 21:03:49 74.20,-147.23 62.94 7.53 74
6 04/19/2025 21:55:45 -74.15, 20.28 117.15 04/19/2025 21:54:32 -74.15, 20.21 117.13 2.16 73
7 04/19/2025 22:46:25 74.15,-172.40 62.84 04/19/2025 22:45:18 74.15,-172.48 62.86 2.40 67
8 04/19/2025 23:37:07 -74.13, -5.11 117.19 04/19/2025 23:36:02 -74.15, -5.16 117.15 2.78 65
9 04/20/2025 00:27:47 74.13, 162.22 62.80 04/20/2025 00:26:48 74.15, 162.15 62.83 2.95 59
10 04/20/2025 01:18:29 -74.12, -30.49 117.23 04/20/2025 01:17:31 -74.10, -30.41 117.23 2.71 58
11 04/20/2025 02:09:09 74.11, 136.83 62.76 04/20/2025 02:08:17 74.10, 136.90 62.75 2.52 52
12 04/20/2025 02:59:51 -74.10, -55.87 117.27 04/20/2025 02:59:01 -74.10, -55.79 117.26 2.66 50
13 04/20/2025 03:50:31 74.09, 111.45 62.72 04/20/2025 03:49:47 74.10, 111.53 62.73 2.45 44
14 04/20/2025 04:41:12 -74.13, -81.14 117.27 04/20/2025 04:40:31 -74.10, -81.16 117.28 3.31 41
15 04/20/2025 05:31:52 74.13, 86.19 62.72 04/20/2025 05:31:17 74.10, 86.16 62.70 3.30 35
16 04/20/2025 06:22:34 -74.11,-106.52 117.31 04/20/2025 06:22:01 -74.10,-106.53 117.31 1.42 33
17 04/20/2025 07:13:14 74.11, 60.80 62.68 04/20/2025 07:12:47 74.10, 60.78 62.68 1.40 27
18 04/20/2025 08:03:56 -74.09,-131.90 117.35 04/20/2025 08:03:31 -74.10,-131.90 117.34 0.48 25
19 04/20/2025 08:54:35 74.09, 35.42 62.64 04/20/2025 08:54:16 74.10, 35.41 62.65 0.68 19
20 04/20/2025 09:45:17 -74.08,-157.29 117.38 04/20/2025 09:45:00 -74.10,-157.28 117.36 2.37 17
21 04/20/2025 10:35:57 74.07, 10.03 62.60 04/20/2025 10:35:46 74.10, 10.04 62.63 2.54 11
22 04/20/2025 11:26:38 -74.11, 177.45 117.38 04/20/2025 11:26:30 -74.10, 177.35 117.39 3.26 8
23 04/20/2025 12:17:18 74.10, -15.23 62.61 04/20/2025 12:17:16 74.09, -15.34 62.60 3.42 2
24 04/20/2025 13:08:00 -74.09, 152.06 117.42 04/20/2025 13:08:00 -74.10, 151.98 117.41 2.72 0
25 04/20/2025 13:58:40 74.09, -40.61 62.57 04/20/2025 13:58:46 74.09, -40.71 62.58 3.02 6
26 04/20/2025 14:49:22 -74.07, 126.68 117.46 04/20/2025 14:49:29 -74.05, 126.73 117.49 3.30 7
27 04/20/2025 15:40:02 74.07, -66.00 62.53 04/20/2025 15:40:15 74.04, -65.96 62.50 2.97 13
28 04/20/2025 16:30:44 -74.06, 101.30 117.50 04/20/2025 16:30:59 -74.05, 101.35 117.52 2.07 15
29 04/20/2025 17:21:24 74.05, -91.38 62.49 04/20/2025 17:21:45 74.04, -91.33 62.47 1.72 21
30 04/20/2025 18:12:06 -74.04, 75.91 117.54 04/20/2025 18:12:29 -74.04, 75.98 117.54 2.21 23
31 04/20/2025 19:02:46 74.03,-116.77 62.45 04/20/2025 19:03:15 74.04,-116.71 62.45 2.16 29
32 04/20/2025 19:53:27 -74.07, 50.65 117.54 04/20/2025 19:53:59 -74.04, 50.61 117.57 3.12 32
33 04/20/2025 20:44:07 74.06,-142.03 62.45 04/20/2025 20:44:45 74.04,-142.08 62.42 2.91 38
34 04/20/2025 21:34:49 -74.05, 25.27 117.57 04/20/2025 21:35:29 -74.04, 25.24 117.59 1.34 40
35 04/20/2025 22:25:29 74.05,-167.41 62.41 04/20/2025 22:26:15 74.04,-167.45 62.40 1.28 46
36 04/20/2025 23:16:11 -74.03, -0.12 117.61 04/20/2025 23:16:59 -74.04, -0.14 117.62 1.07 48
37 04/21/2025 00:06:51 74.03, 167.20 62.37 04/21/2025 00:07:45 74.04, 167.17 62.38 1.57 54
38 04/21/2025 00:57:33 -74.02, -25.50 117.65 04/21/2025 00:58:29 -74.04, -25.51 117.64 2.79 56
39 04/21/2025 01:48:13 74.01, 141.82 62.34 04/21/2025 01:49:15 74.04, 141.80 62.35 3.30 62
40 04/21/2025 02:38:54 -74.05, -50.77 117.65 04/21/2025 02:39:59 -74.04, -50.88 117.67 3.66 65
41 04/21/2025 03:29:35 73.99, 116.43 62.30 04/21/2025 03:30:44 73.99, 116.55 62.27 3.61 69
42 04/21/2025 04:20:16 -74.03, -76.15 117.69 04/21/2025 04:21:29 -74.04, -76.26 117.69 3.40 73
43 04/21/2025 05:11:00 73.83, 90.69 62.13 04/21/2025 05:12:12 73.89, 91.42 62.14 23.55 72
44 04/21/2025 06:01:43 -73.76,-102.12 117.94 04/21/2025 06:02:54 -73.79,-101.03 117.99 34.08 71
45 04/21/2025 06:52:28 73.51, 64.62 61.84 04/21/2025 06:53:36 73.59, 66.75 61.78 67.81 68
46 04/21/2025 07:43:11 -73.45,-128.19 118.23 04/21/2025 07:44:18 -73.50,-125.71 118.34 78.65 67

Figure of METOP-B and NPP satellite orbits during SNOs since TLE Epoch: 4/14/2025
SNOs_Map_METOP-B_NPP_20250414.jpg

Download SNOs between METOP-B and NPP since TLE EPOCH: 04/14/2025 in txt file.

Historial Predications of SNOs between METOP-B and NPP