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: 3/19/2020
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 -68.93, -46.19 111.51 03/21/2020 02:57:10 -68.80, -45.03 111.68 48.70 70
2 03/21/2020 03:46:34 68.26, 122.00 67.79 03/21/2020 03:46:44 68.30, 121.99 67.82 3.48 10
3 03/21/2020 04:37:15 -68.14, -70.52 112.36 03/21/2020 04:36:15 -68.14, -70.57 112.36 2.00 60
4 03/23/2020 19:12:45 -68.36, 70.34 113.16 03/23/2020 19:13:46 -68.35, 70.30 113.18 1.86 61
5 03/23/2020 20:03:29 68.23,-122.19 66.69 03/23/2020 20:03:13 68.23,-122.20 66.69 0.69 16
6 03/23/2020 20:54:02 -67.67, 45.83 113.90 03/23/2020 20:52:51 -67.69, 44.80 113.86 43.89 71
7 03/26/2020 11:29:39 -68.32,-173.85 114.26 03/26/2020 11:30:13 -68.34,-173.83 114.25 2.17 34
8 03/26/2020 12:20:23 68.20, -6.37 65.60 03/26/2020 12:19:40 68.22, -6.33 65.62 2.86 43
9 03/29/2020 02:55:57 68.64, 134.19 65.04 03/29/2020 02:57:08 68.59, 134.73 64.96 22.73 71
10 03/29/2020 03:46:34 -68.29, -58.03 115.35 03/29/2020 03:46:42 -68.27, -58.02 115.36 1.85 8
11 03/29/2020 04:37:18 68.16, 109.44 64.52 03/29/2020 04:36:09 68.14, 109.47 64.50 2.70 69
12 03/31/2020 19:12:47 68.34,-109.65 63.69 03/31/2020 19:13:40 68.34,-109.68 63.68 1.30 53
13 03/31/2020 20:03:29 -68.25, 57.78 116.42 03/31/2020 20:03:10 -68.25, 57.84 116.42 2.51 19
14 03/31/2020 20:53:58 67.32,-133.76 62.62 03/31/2020 20:52:50 67.39,-135.50 62.72 74.89 68

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 3/19/2020
SNOs_Map_NPP_TERRA_20200319.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 03/19/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service