Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between FY3D and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/27/2021
Index Date (FY3D) Time (FY3D) Lat,Lon (FY3D) SZA (FY3D ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 05/09/2021 17:11:51 -81.22, 41.86 111.89 05/09/2021 17:10:35 -81.22, 42.05 111.87 3.22 76
2 05/09/2021 18:02:35 81.21,-150.59 68.08 05/09/2021 18:01:20 81.22,-150.78 68.15 3.23 75
3 05/09/2021 18:53:20 -81.22, 16.48 111.90 05/09/2021 18:52:05 -81.22, 16.62 111.88 2.49 75
4 05/09/2021 19:44:04 81.22,-175.98 68.06 05/09/2021 19:42:49 81.21,-175.83 68.08 2.65 75
5 05/09/2021 20:34:49 -81.22, -8.91 111.92 05/09/2021 20:33:35 -81.22, -8.81 111.89 1.76 74
6 05/09/2021 21:25:33 81.22, 158.63 68.04 05/09/2021 21:24:19 81.21, 158.74 68.07 1.91 74
7 05/09/2021 22:16:17 -81.21, -33.91 111.99 05/09/2021 22:15:04 -81.21, -33.85 111.96 1.04 73
8 05/09/2021 23:07:02 81.22, 133.25 68.03 05/09/2021 23:05:49 81.21, 133.31 68.06 1.16 73
9 05/09/2021 23:57:46 -81.21, -59.30 112.01 05/09/2021 23:56:34 -81.21, -59.28 111.97 0.33 72
10 05/10/2021 00:48:31 81.22, 107.86 68.01 05/10/2021 00:47:19 81.22, 107.88 68.05 0.42 72
11 05/10/2021 01:39:15 -81.21, -84.68 112.02 05/10/2021 01:38:04 -81.21, -84.71 111.98 0.44 71
12 05/10/2021 02:30:00 81.22, 82.47 67.99 05/10/2021 02:28:49 81.22, 82.45 68.04 0.33 71
13 05/10/2021 03:20:44 -81.21,-110.07 112.04 05/10/2021 03:19:34 -81.21,-110.14 111.99 1.16 70
14 05/10/2021 04:11:29 81.22, 57.09 67.98 05/10/2021 04:10:19 81.22, 57.02 68.03 1.07 70
15 05/10/2021 05:02:13 -81.21,-135.46 112.06 05/10/2021 05:01:04 -81.22,-135.57 112.00 1.88 69
16 05/10/2021 05:52:58 81.22, 31.70 67.96 05/10/2021 05:51:49 81.22, 31.59 68.02 1.82 69
17 05/10/2021 06:43:42 -81.21,-160.84 112.07 05/10/2021 06:42:34 -81.22,-161.00 112.01 2.61 68
18 05/10/2021 07:34:26 81.22, 6.31 67.95 05/10/2021 07:33:18 81.22, 6.16 68.01 2.56 68
19 05/10/2021 08:25:11 -81.22, 173.38 112.03 05/10/2021 08:24:03 -81.22, 173.58 112.02 3.26 68
20 05/10/2021 09:15:55 81.22, -19.07 67.93 05/10/2021 09:14:48 81.22, -19.26 68.00 3.30 67
21 05/10/2021 10:06:39 -81.21, 148.38 112.10 05/10/2021 10:05:32 -81.21, 148.53 112.09 2.53 67
22 05/10/2021 10:57:24 81.22, -44.46 67.91 05/10/2021 10:56:17 81.21, -44.31 67.93 2.57 67
23 05/10/2021 11:48:08 -81.22, 123.00 112.12 05/10/2021 11:47:02 -81.21, 123.10 112.10 1.81 66
24 05/10/2021 12:38:53 81.22, -69.85 67.90 05/10/2021 12:37:47 81.22, -69.74 67.92 1.83 66
25 05/10/2021 13:29:37 -81.22, 97.61 112.14 05/10/2021 13:28:32 -81.21, 97.67 112.11 1.08 65
26 05/10/2021 14:20:22 81.22, -95.23 67.88 05/10/2021 14:19:17 81.22, -95.17 67.91 1.08 65
27 05/10/2021 15:11:06 -81.22, 72.22 112.15 05/10/2021 15:10:02 -81.21, 72.24 112.12 0.36 64
28 05/10/2021 16:01:51 81.22,-120.62 67.87 05/10/2021 16:00:47 81.22,-120.60 67.90 0.34 64
29 05/10/2021 16:52:35 -81.22, 46.84 112.17 05/10/2021 16:51:32 -81.22, 46.81 112.13 0.40 63
30 05/10/2021 17:43:20 81.22,-146.00 67.85 05/10/2021 17:42:17 81.22,-146.03 67.89 0.41 63
31 05/10/2021 18:34:04 -81.22, 21.45 112.18 05/10/2021 18:33:02 -81.22, 21.39 112.14 1.11 62
32 05/10/2021 19:24:49 81.22,-171.39 67.84 05/10/2021 19:23:47 81.22,-171.46 67.88 1.15 62
33 05/10/2021 20:15:33 -81.22, -3.94 112.20 05/10/2021 20:14:32 -81.22, -4.04 112.15 1.84 61
34 05/10/2021 21:06:18 81.22, 163.22 67.82 05/10/2021 21:05:17 81.22, 163.11 67.87 1.89 61
35 05/10/2021 21:57:02 -81.22, -29.32 112.21 05/10/2021 21:56:02 -81.22, -29.47 112.16 2.57 60
36 05/10/2021 22:47:47 81.22, 137.84 67.80 05/10/2021 22:46:47 81.22, 137.68 67.86 2.64 60
37 05/10/2021 23:38:31 -81.22, -54.71 112.23 05/10/2021 23:37:32 -81.22, -54.90 112.17 3.29 59
38 05/11/2021 00:29:16 81.22, 112.45 67.79 05/11/2021 00:28:16 81.22, 112.64 67.79 3.24 60
39 05/11/2021 01:20:00 -81.22, -80.09 112.25 05/11/2021 01:19:01 -81.21, -79.95 112.23 2.57 59
40 05/11/2021 02:10:45 81.22, 87.06 67.77 05/11/2021 02:09:46 81.22, 87.21 67.79 2.50 59

Figure of FY3D and NPP satellite orbits during SNOs since TLE Epoch: 4/27/2021
SNOs_Map_FY3D_NPP_20210427.jpg

Download SNOs between FY3D and NPP since TLE EPOCH: 04/27/2021 in txt file.

Historial Predications of SNOs between FY3D and NPP