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: 8/17/2021
Index Date (METOP-A) Time (METOP-A) Lat,Lon (METOP-A) SZA (METOP-A ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 08/29/2021 22:15:32 -77.44, 7.70 110.95 08/29/2021 22:14:25 -77.43, 4.39 110.68 80.04 67
2 08/29/2021 23:06:17 77.21, 174.06 68.92 08/29/2021 23:05:06 77.24, 172.53 69.10 37.67 71
3 08/29/2021 23:57:01 -77.12, -19.00 111.13 08/29/2021 23:55:47 -77.09, -19.50 111.09 12.90 74
4 08/30/2021 00:47:42 77.06, 148.10 68.85 08/30/2021 00:46:31 77.03, 148.07 68.85 3.31 71
5 08/30/2021 01:38:24 -77.05, -44.60 111.15 08/30/2021 01:37:16 -77.05, -44.71 111.12 2.80 68
6 08/30/2021 02:29:04 77.04, 122.68 68.86 08/30/2021 02:28:01 77.03, 122.68 68.87 0.62 63
7 08/30/2021 03:19:46 -77.03, -70.02 111.14 08/30/2021 03:18:46 -77.05, -70.09 111.09 2.97 60
8 08/30/2021 04:10:26 77.02, 97.25 68.87 08/30/2021 04:09:31 77.04, 97.29 68.90 2.21 55
9 08/30/2021 05:01:07 -77.01, -95.44 111.12 08/30/2021 05:00:14 -77.01, -95.30 111.12 3.50 53
10 08/30/2021 05:51:46 77.04, 72.01 68.91 08/30/2021 05:51:00 77.04, 71.91 68.93 2.54 46
11 08/30/2021 06:42:28 -77.04,-120.69 111.09 08/30/2021 06:41:44 -77.02,-120.69 111.09 2.35 44
12 08/30/2021 07:33:08 77.02, 46.59 68.92 08/30/2021 07:32:30 77.04, 46.52 68.96 2.73 38
13 08/30/2021 08:23:50 -77.02,-146.11 111.07 08/30/2021 08:23:14 -77.02,-146.07 111.06 0.95 36
14 08/30/2021 09:14:30 77.00, 21.16 68.93 08/30/2021 09:13:59 77.00, 21.32 68.93 3.81 31
15 08/30/2021 10:05:12 -77.00,-171.53 111.06 08/30/2021 10:04:44 -77.02,-171.46 111.03 3.33 28
16 08/30/2021 10:55:51 77.02, -4.08 68.97 08/30/2021 10:55:29 77.00, -4.07 68.96 2.45 22
17 08/30/2021 11:46:33 -77.02, 163.22 111.02 08/30/2021 11:46:14 -77.02, 163.16 111.01 1.70 19
18 08/30/2021 12:37:13 77.00, -29.51 68.99 08/30/2021 12:36:59 77.01, -29.46 68.99 1.24 14
19 08/30/2021 13:27:55 -77.00, 137.80 111.01 08/30/2021 13:27:44 -77.03, 137.77 110.98 3.07 11
20 08/30/2021 14:18:34 77.03, -54.75 69.03 08/30/2021 14:18:29 77.01, -54.84 69.02 3.16 5
21 08/30/2021 15:09:16 -77.02, 112.56 110.97 08/30/2021 15:09:13 -76.99, 112.57 111.00 4.25 3
22 08/30/2021 15:59:56 77.01, -80.17 69.04 08/30/2021 15:59:59 77.01, -80.23 69.05 1.42 3
23 08/30/2021 16:50:38 -77.00, 87.13 110.96 08/30/2021 16:50:43 -76.99, 87.18 110.98 2.03 5
24 08/30/2021 17:41:18 76.99,-105.60 69.05 08/30/2021 17:41:29 77.01,-105.62 69.07 3.03 11
25 08/30/2021 18:32:00 -76.98, 61.71 110.94 08/30/2021 18:32:13 -76.99, 61.79 110.95 2.23 13
26 08/30/2021 19:22:39 77.01,-130.84 69.09 08/30/2021 19:22:59 77.02,-131.00 69.10 3.99 20
27 08/30/2021 20:13:21 -77.01, 36.47 110.90 08/30/2021 20:13:43 -76.99, 36.41 110.92 2.07 22
28 08/30/2021 21:04:01 76.99,-156.27 69.10 08/30/2021 21:04:28 76.98,-156.21 69.08 2.19 27
29 08/30/2021 21:54:43 -76.99, 11.04 110.89 08/30/2021 21:55:13 -77.00, 11.02 110.89 1.21 30
30 08/30/2021 22:45:23 76.97, 178.31 69.12 08/30/2021 22:45:58 76.98, 178.41 69.10 2.55 35
31 08/30/2021 23:36:05 -76.97, -14.38 110.88 08/30/2021 23:36:43 -77.00, -14.36 110.86 3.67 38
32 08/31/2021 00:26:44 76.99, 153.07 69.16 08/31/2021 00:27:28 76.98, 153.02 69.13 1.80 44
33 08/31/2021 01:17:26 -76.99, -39.62 110.84 08/31/2021 01:18:13 -77.00, -39.75 110.83 3.37 47
34 08/31/2021 02:08:06 76.97, 127.64 69.17 08/31/2021 02:08:58 76.98, 127.63 69.16 1.21 52
35 08/31/2021 02:58:48 -76.97, -65.05 110.83 08/31/2021 02:59:42 -76.96, -64.96 110.86 2.46 54
36 08/31/2021 03:49:28 76.95, 102.22 69.18 08/31/2021 03:50:28 76.99, 102.25 69.19 3.86 60

Figure of METOP-A and NPP satellite orbits during SNOs since TLE Epoch: 8/17/2021
SNOs_Map_METOP-A_NPP_20210817.jpg

Download SNOs between METOP-A and NPP since TLE EPOCH: 08/17/2021 in txt file.

Historial Predications of SNOs between METOP-A and NPP