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: 4/18/2020
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 04/19/2020 10:39:10 -69.09,-162.19 122.43 04/19/2020 10:40:19 -68.97,-160.60 122.56 64.20 69
2 04/19/2020 11:29:42 68.32, 6.15 56.78 04/19/2020 11:29:56 68.31, 6.22 56.77 3.12 14
3 04/19/2020 12:20:22 -68.13, 173.71 123.43 04/19/2020 12:19:27 -68.14, 173.65 123.41 2.67 55
4 04/22/2020 02:55:52 -68.38, -45.47 124.06 04/22/2020 02:56:57 -68.35, -45.48 124.09 2.61 65
5 04/22/2020 03:46:36 68.25, 122.00 55.81 04/22/2020 03:46:24 68.24, 122.03 55.79 1.97 12
6 04/22/2020 04:37:11 -67.79, -70.10 124.68 04/22/2020 04:35:59 -67.85, -70.79 124.61 29.87 72
7 04/24/2020 19:12:46 -68.31, 70.39 125.01 04/24/2020 19:13:24 -68.34, 70.39 124.99 3.05 38
8 04/24/2020 20:03:30 68.19,-122.15 54.86 04/24/2020 20:02:52 68.16,-122.17 54.83 3.20 38
9 04/27/2020 10:39:06 68.77, 18.24 54.61 04/27/2020 10:40:17 68.64, 19.02 54.47 34.65 71
10 04/27/2020 11:29:40 -68.25,-173.75 125.94 04/27/2020 11:29:52 -68.26,-173.81 125.93 2.73 12
11 04/27/2020 12:20:24 68.13, -6.30 53.94 04/27/2020 12:19:19 68.14, -6.31 53.95 0.84 65
12 04/30/2020 02:55:52 68.34, 134.58 53.34 04/30/2020 02:56:48 68.33, 134.53 53.32 2.61 56
13 04/30/2020 03:46:34 -68.24, -57.97 126.78 04/30/2020 03:46:18 -68.23, -57.96 126.79 1.42 16
14 04/30/2020 04:37:05 67.42, 110.34 52.40 04/30/2020 04:35:56 67.49, 108.83 52.47 64.77 69

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/18/2020
SNOs_Map_NPP_TERRA_20200418.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/18/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service