Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/18/2021
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 05/19/2021 01:14:28 69.41, 158.55 49.53 05/19/2021 01:15:36 69.29, 160.38 49.40 73.06 68
2 05/19/2021 02:04:55 -68.52, -32.91 131.38 05/19/2021 02:05:18 -68.51, -32.97 131.40 2.72 23
3 05/19/2021 02:55:39 68.40, 134.56 48.49 05/19/2021 02:54:45 68.40, 134.54 48.49 0.77 54
4 05/21/2021 17:31:10 68.60, -84.56 48.15 05/21/2021 17:32:14 68.62, -84.58 48.18 3.05 64
5 05/21/2021 18:21:52 -68.51, 82.87 131.95 05/21/2021 18:21:44 -68.52, 82.92 131.94 2.14 8
6 05/21/2021 19:12:29 68.01,-109.18 47.54 05/21/2021 19:11:17 68.06,-109.98 47.61 33.71 72
7 05/24/2021 09:48:07 68.59, 31.21 47.63 05/24/2021 09:48:41 68.56, 31.23 47.61 2.60 34
8 05/24/2021 10:38:48 -68.44,-161.27 132.53 05/24/2021 10:38:11 -68.46,-161.27 132.51 2.54 37
9 05/27/2021 01:14:24 -68.96, -20.83 132.46 05/27/2021 01:15:36 -68.84, -20.19 132.58 28.57 72
10 05/27/2021 02:05:02 68.53, 147.06 47.10 05/27/2021 02:05:07 68.50, 147.03 47.07 3.19 5
11 05/27/2021 02:55:43 -68.37, -45.43 133.06 05/27/2021 02:54:37 -68.40, -45.46 133.03 3.25 66
12 05/29/2021 17:31:15 -68.63, 95.38 133.21 05/29/2021 17:32:06 -68.61, 95.40 133.23 2.30 51
13 05/29/2021 18:21:58 68.47, -97.10 46.62 05/29/2021 18:21:33 68.49, -97.11 46.64 1.98 25
14 05/29/2021 19:12:25 -67.56, 71.36 134.30 05/29/2021 19:11:17 -67.61, 69.50 134.24 78.91 68

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 5/18/2021
SNOs_Map_NPP_TERRA_20210518.jpg

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

Historial Predications of SNOs between NPP and TERRA