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: 4/21/2020
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 04/22/2020 02:55:51 -68.34, -45.41 124.10 04/22/2020 02:56:57 -68.35, -45.48 124.09 3.34 66
2 04/22/2020 03:46:36 68.26, 121.99 55.82 04/22/2020 03:46:24 68.24, 122.03 55.79 3.04 12
3 04/22/2020 04:37:11 -67.80, -70.12 124.66 04/22/2020 04:35:59 -67.85, -70.79 124.61 28.83 72
4 04/24/2020 19:12:46 -68.33, 70.37 125.00 04/24/2020 19:13:24 -68.35, 70.41 124.98 2.96 38
5 04/24/2020 20:03:30 68.20,-122.16 54.87 04/24/2020 20:02:52 68.18,-122.15 54.84 2.78 38
6 04/27/2020 10:39:06 68.78, 18.22 54.62 04/27/2020 10:40:17 68.67, 19.05 54.50 35.86 71
7 04/27/2020 11:29:40 -68.26,-173.77 125.92 04/27/2020 11:29:52 -68.29,-173.78 125.90 2.44 12
8 04/27/2020 12:20:24 68.14, -6.32 53.95 04/27/2020 12:19:19 68.17, -6.28 53.97 2.97 65
9 04/30/2020 02:55:52 68.35, 134.57 53.35 04/30/2020 02:56:48 68.37, 134.58 53.37 2.59 56
10 04/30/2020 03:46:33 -68.20, -57.93 126.81 04/30/2020 03:46:19 -68.22, -57.97 126.80 2.41 14
11 04/30/2020 04:37:06 67.49, 110.26 52.47 04/30/2020 04:35:56 67.53, 108.89 52.51 58.68 70
12 05/02/2020 19:12:46 68.30,-109.59 52.49 05/02/2020 19:13:16 68.30,-109.62 52.49 0.99 30
13 05/02/2020 20:03:28 -68.20, 57.85 127.62 05/02/2020 20:02:46 -68.20, 57.90 127.62 1.93 42

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/21/2020
SNOs_Map_NPP_TERRA_20200421.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/21/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service