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: 5/18/2021
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 05/18/2021 02:28:16 -81.24, -98.70 113.69 05/18/2021 02:29:13 -81.24, -98.75 113.71 0.83 57
2 05/18/2021 03:19:00 81.23, 68.97 66.26 05/18/2021 03:19:57 81.23, 68.92 66.24 0.93 57
3 05/18/2021 04:09:45 -81.24,-124.09 113.70 05/18/2021 04:10:43 -81.24,-124.14 113.72 0.91 58
4 05/18/2021 05:00:29 81.23, 43.58 66.25 05/18/2021 05:01:27 81.23, 43.52 66.22 1.02 58
5 05/18/2021 05:51:14 -81.24,-149.47 113.71 05/18/2021 05:52:13 -81.24,-149.53 113.74 0.99 59
6 05/18/2021 06:41:58 81.23, 18.20 66.24 05/18/2021 06:42:57 81.23, 18.13 66.21 1.10 59
7 05/18/2021 07:32:42 -81.23,-174.47 113.78 05/18/2021 07:33:42 -81.23,-174.53 113.80 1.07 60
8 05/18/2021 08:23:27 81.23, -7.19 66.22 05/18/2021 08:24:27 81.23, -7.26 66.20 1.19 60
9 05/18/2021 09:14:11 -81.23, 160.14 113.79 05/18/2021 09:15:12 -81.23, 160.07 113.82 1.15 61
10 05/18/2021 10:04:56 81.23, -32.58 66.21 05/18/2021 10:05:57 81.23, -32.65 66.19 1.27 61
11 05/18/2021 10:55:40 -81.23, 134.76 113.80 05/18/2021 10:56:42 -81.23, 134.68 113.83 1.23 62
12 05/18/2021 11:46:25 81.23, -57.96 66.20 05/18/2021 11:47:27 81.23, -58.04 66.17 1.35 62
13 05/18/2021 12:37:09 -81.23, 109.37 113.82 05/18/2021 12:38:12 -81.23, 109.29 113.84 1.30 63
14 05/18/2021 13:27:54 81.23, -83.35 66.19 05/18/2021 13:28:57 81.23, -83.44 66.16 1.44 63
15 05/18/2021 14:18:38 -81.23, 83.98 113.83 05/18/2021 14:19:42 -81.23, 83.90 113.86 1.38 64
16 05/18/2021 15:09:23 81.23,-108.74 66.17 05/18/2021 15:10:27 81.23,-108.83 66.15 1.53 64
17 05/18/2021 16:00:07 -81.23, 58.59 113.84 05/18/2021 16:01:12 -81.23, 58.51 113.87 1.46 65
18 05/18/2021 16:50:52 81.23,-134.13 66.16 05/18/2021 16:51:57 81.23,-134.22 66.14 1.61 65
19 05/18/2021 17:41:36 -81.23, 33.21 113.86 05/18/2021 17:42:42 -81.23, 33.12 113.88 1.54 66
20 05/18/2021 18:32:21 81.23,-159.51 66.15 05/18/2021 18:33:27 81.23,-159.61 66.12 1.70 66
21 05/18/2021 19:23:05 -81.23, 7.82 113.87 05/18/2021 19:24:12 -81.23, 7.73 113.89 1.62 67
22 05/18/2021 20:13:50 81.23, 175.10 66.13 05/18/2021 20:14:57 81.23, 174.99 66.11 1.78 67
23 05/18/2021 21:04:34 -81.23, -17.57 113.88 05/18/2021 21:05:42 -81.23, -17.67 113.91 1.70 68
24 05/18/2021 21:55:19 81.23, 149.71 66.12 05/18/2021 21:56:27 81.24, 149.60 66.10 1.87 68
25 05/18/2021 22:46:03 -81.23, -42.95 113.89 05/18/2021 22:47:12 -81.23, -43.06 113.92 1.78 69
26 05/18/2021 23:36:48 81.23, 124.32 66.11 05/18/2021 23:37:57 81.24, 124.21 66.09 1.96 69
27 05/19/2021 00:27:32 -81.23, -68.34 113.91 05/19/2021 00:28:42 -81.23, -68.45 113.93 1.86 70
28 05/19/2021 01:18:17 81.23, 98.94 66.10 05/19/2021 01:19:27 81.24, 98.82 66.07 2.04 70
29 05/19/2021 02:09:01 -81.23, -93.73 113.92 05/19/2021 02:10:12 -81.23, -93.84 113.94 1.95 71
30 05/19/2021 02:59:46 81.23, 73.55 66.08 05/19/2021 03:00:57 81.24, 73.43 66.06 2.13 71
31 05/19/2021 03:50:30 -81.23,-119.11 113.93 05/19/2021 03:51:42 -81.24,-119.23 113.95 2.03 72
32 05/19/2021 04:41:15 81.23, 48.16 66.07 05/19/2021 04:42:27 81.24, 48.03 66.05 2.22 72
33 05/19/2021 05:31:59 -81.23,-144.50 113.94 05/19/2021 05:33:12 -81.24,-144.62 113.97 2.11 73
34 05/19/2021 06:22:44 81.23, 22.78 66.06 05/19/2021 06:23:57 81.24, 22.64 66.04 2.31 73
35 05/19/2021 07:13:28 -81.23,-169.89 113.96 05/19/2021 07:14:42 -81.24,-170.01 113.98 2.19 74
36 05/19/2021 08:04:13 81.24, -2.61 66.05 05/19/2021 08:05:27 81.24, -2.75 66.03 2.39 74
37 05/19/2021 08:54:57 -81.23, 164.73 113.97 05/19/2021 08:56:12 -81.24, 164.59 113.99 2.27 75
38 05/19/2021 09:45:42 81.24, -28.00 66.04 05/19/2021 09:46:57 81.24, -28.14 66.01 2.48 75

Figure of FY3D and NPP satellite orbits during SNOs since TLE Epoch: 5/18/2021
SNOs_Map_FY3D_NPP_20210518.jpg

Download SNOs between FY3D and NPP since TLE EPOCH: 05/18/2021 in txt file.

Historial Predications of SNOs between FY3D and NPP