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: 3/21/2020
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 03:46:34 68.29, 121.97 67.81 03/21/2020 03:46:44 68.27, 121.96 67.79 1.54 10
2 03/21/2020 04:37:15 -68.16, -70.55 112.34 03/21/2020 04:36:14 -68.17, -70.53 112.33 1.20 61
3 03/23/2020 19:12:45 -68.39, 70.30 113.14 03/23/2020 19:13:45 -68.38, 70.34 113.15 1.30 60
4 03/23/2020 20:03:29 68.25,-122.22 66.71 03/23/2020 20:03:12 68.26,-122.16 66.72 2.54 17
5 03/23/2020 20:54:01 -67.64, 45.87 113.93 03/23/2020 20:52:50 -67.72, 44.83 113.83 44.66 71
6 03/26/2020 11:29:39 -68.30,-173.81 114.29 03/26/2020 11:30:14 -68.32,-173.86 114.27 2.97 35
7 03/26/2020 12:20:23 68.16, -6.34 65.57 03/26/2020 12:19:41 68.19, -6.36 65.60 3.33 42
8 03/29/2020 02:55:58 68.67, 134.15 65.06 03/29/2020 02:57:09 68.57, 134.70 64.94 24.94 71
9 03/29/2020 03:46:34 -68.26, -58.00 115.37 03/29/2020 03:46:43 -68.25, -58.05 115.39 2.67 9
10 03/29/2020 04:37:18 68.13, 109.47 64.49 03/29/2020 04:36:10 68.12, 109.45 64.48 1.80 68
11 03/31/2020 19:12:47 68.37,-109.69 63.72 03/31/2020 19:13:39 68.38,-109.64 63.72 2.25 52
12 03/31/2020 20:03:28 -68.23, 57.81 116.45 03/31/2020 20:03:10 -68.23, 57.82 116.45 0.26 18
13 03/31/2020 20:53:58 67.35,-133.80 62.65 03/31/2020 20:52:50 67.37,-135.52 62.70 73.97 68
14 04/03/2020 11:29:41 68.29, 6.19 62.60 04/03/2020 11:30:08 68.30, 6.16 62.61 1.63 27
15 04/03/2020 12:20:23 -68.20, 173.62 117.51 04/03/2020 12:19:38 -68.21, 173.68 117.50 2.82 45

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 3/21/2020
SNOs_Map_NPP_TERRA_20200321.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 03/21/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service