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: 4/6/2020
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 04/08/2020 19:12:46 -68.34, 70.35 119.36 04/08/2020 19:13:36 -68.35, 70.35 119.35 1.19 50
2 04/08/2020 20:03:30 68.21,-122.18 60.50 04/08/2020 20:03:03 68.24,-122.14 60.52 3.33 27
3 04/08/2020 20:53:56 -67.27, 46.30 120.47 04/08/2020 20:52:48 -67.30, 44.41 120.42 80.93 68
4 04/11/2020 10:39:14 69.21, 17.64 60.55 04/11/2020 10:40:22 69.09, 19.53 60.41 76.01 68
5 04/11/2020 11:29:41 -68.32,-173.85 120.37 04/11/2020 11:30:04 -68.32,-173.80 120.38 2.08 23
6 04/11/2020 12:20:24 68.14, -6.31 59.44 04/11/2020 12:19:32 68.15, -6.36 59.44 2.08 52
7 04/14/2020 02:55:54 68.39, 134.52 58.74 04/14/2020 02:57:02 68.38, 134.53 58.73 0.89 68
8 04/14/2020 03:46:35 -68.25, -57.98 121.42 04/14/2020 03:46:33 -68.23, -58.02 121.44 2.84 2
9 04/14/2020 04:37:15 67.91, 109.75 58.23 04/14/2020 04:36:03 67.94, 109.28 58.26 19.84 72
10 04/16/2020 19:12:47 68.32,-109.62 57.71 04/16/2020 19:13:29 68.34,-109.63 57.73 2.21 42
11 04/16/2020 20:03:28 -68.17, 57.88 122.45 04/16/2020 20:03:00 -68.18, 57.82 122.44 2.92 28
12 04/19/2020 10:39:11 -69.11,-162.22 122.40 04/19/2020 10:40:20 -68.97,-160.61 122.56 66.28 69
13 04/19/2020 11:29:42 68.30, 6.17 56.77 04/19/2020 11:29:57 68.29, 6.20 56.75 2.14 15
14 04/19/2020 12:20:23 -68.16, 173.67 123.40 04/19/2020 12:19:28 -68.14, 173.65 123.42 2.14 55

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/6/2020
SNOs_Map_NPP_TERRA_20200406.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/06/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service