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: 3/20/2020
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 03/21/2020 02:56:00 -68.92, -46.18 111.53 03/21/2020 02:57:10 -68.82, -45.02 111.66 47.91 70
2 03/21/2020 03:46:35 68.30, 121.95 67.83 03/21/2020 03:46:44 68.31, 122.01 67.83 2.60 9
3 03/21/2020 04:37:16 -68.18, -70.57 112.32 03/21/2020 04:36:15 -68.15, -70.55 112.34 2.75 61
4 03/23/2020 19:12:44 -68.35, 70.35 113.18 03/23/2020 19:13:45 -68.37, 70.32 113.16 2.68 61
5 03/23/2020 20:03:29 68.27,-122.24 66.73 03/23/2020 20:03:12 68.25,-122.18 66.71 3.35 17
6 03/23/2020 20:54:01 -67.65, 45.85 113.92 03/23/2020 20:52:50 -67.70, 44.82 113.84 44.00 71
7 03/26/2020 11:29:39 -68.31,-173.83 114.27 03/26/2020 11:30:14 -68.31,-173.87 114.28 1.79 35
8 03/26/2020 12:20:23 68.18, -6.36 65.59 03/26/2020 12:19:41 68.18, -6.37 65.59 0.68 42
9 03/29/2020 02:55:58 68.68, 134.13 65.08 03/29/2020 02:57:08 68.61, 134.76 64.99 26.59 70
10 03/29/2020 03:46:34 -68.28, -58.02 115.36 03/29/2020 03:46:42 -68.29, -58.00 115.34 2.14 8
11 03/29/2020 04:37:18 68.15, 109.45 64.51 03/29/2020 04:36:09 68.17, 109.50 64.52 2.62 69
12 03/31/2020 19:12:48 68.39,-109.71 63.73 03/31/2020 19:13:40 68.37,-109.65 63.71 2.94 52
13 03/31/2020 20:03:29 -68.24, 57.79 116.43 03/31/2020 20:03:11 -68.23, 57.81 116.45 2.24 18
14 03/31/2020 20:53:59 67.36,-133.81 62.66 03/31/2020 20:52:50 67.42,-135.47 62.75 71.04 69

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 3/20/2020
SNOs_Map_NPP_TERRA_20200320.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 03/20/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service