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: 2/18/2018
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 02/20/2018 02:55:50 68.39, 134.59 79.32 02/20/2018 02:56:55 68.39, 134.64 79.31 2.02 65
2 02/20/2018 03:46:31 -68.26, -57.93 100.83 02/20/2018 03:46:26 -68.24, -57.92 100.86 3.02 5
3 02/20/2018 04:37:09 67.80, 109.96 78.68 02/20/2018 04:35:57 67.89, 109.32 78.81 28.52 72
4 02/22/2018 19:12:42 68.33,-109.56 78.29 02/22/2018 19:13:25 68.32,-109.57 78.27 1.65 43
5 02/22/2018 20:03:23 -68.21, 57.92 101.86 02/22/2018 20:02:55 -68.22, 57.94 101.85 1.62 28
6 02/25/2018 10:39:06 -69.27,-162.35 101.72 02/25/2018 10:40:13 -69.19,-160.25 101.87 83.04 67
7 02/25/2018 11:29:34 68.28, 6.29 77.24 02/25/2018 11:29:54 68.29, 6.27 77.25 1.16 20
8 02/25/2018 12:20:15 -68.15, 173.77 102.91 02/25/2018 12:19:25 -68.14, 173.72 102.92 2.45 50
9 02/28/2018 02:55:44 -68.47, -45.48 103.56 02/28/2018 02:56:55 -68.43, -45.32 103.61 7.61 71
10 02/28/2018 03:46:26 68.23, 122.13 76.19 02/28/2018 03:46:23 68.25, 122.11 76.21 2.47 3
11 02/28/2018 04:37:07 -68.10, -70.38 103.97 02/28/2018 04:35:54 -68.10, -70.43 103.96 2.11 73
12 03/02/2018 19:12:34 -68.36, 70.43 104.69 03/02/2018 19:13:24 -68.34, 70.45 104.73 3.11 50
13 03/02/2018 20:03:17 68.19,-122.03 75.12 03/02/2018 20:02:51 68.21,-122.06 75.14 2.76 26
14 03/02/2018 20:53:43 -67.24, 46.44 105.88 03/02/2018 20:52:35 -67.33, 44.57 105.72 80.96 68

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 2/18/2018
SNOs_Map_NPP_TERRA_20180218.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 02/18/2018 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service