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: 4/20/2019
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 04/22/2019 19:12:44 -68.33, 70.42 124.08 04/22/2019 19:13:38 -68.32, 70.36 124.10 2.83 54
2 04/22/2019 20:03:28 68.21,-122.11 55.79 04/22/2019 20:03:05 68.22,-122.12 55.80 1.27 23
3 04/22/2019 20:53:56 -67.36, 46.24 125.08 04/22/2019 20:52:47 -67.43, 44.61 125.00 70.23 69
4 04/25/2019 10:39:16 69.40, 17.41 56.14 04/25/2019 10:40:22 69.26, 19.78 55.98 94.45 66
5 04/25/2019 11:29:39 -68.29,-173.76 125.01 04/25/2019 11:30:07 -68.31,-173.77 124.99 2.70 28
6 04/25/2019 12:20:23 68.18, -6.31 54.87 04/25/2019 12:19:35 68.15, -6.32 54.85 2.34 48
7 04/28/2019 02:55:55 68.47, 134.45 54.33 04/28/2019 02:57:07 68.43, 134.60 54.28 8.12 72
8 04/28/2019 03:46:35 -68.27, -57.97 125.89 04/28/2019 03:46:38 -68.26, -57.97 125.90 0.62 3
9 04/28/2019 04:37:18 68.10, 109.55 53.93 04/28/2019 04:36:06 68.10, 109.49 53.93 2.83 72
10 04/30/2019 19:12:49 68.35,-109.63 53.38 04/30/2019 19:13:38 68.37,-109.59 53.39 2.75 49
11 04/30/2019 20:03:30 -68.20, 57.89 126.80 04/30/2019 20:03:09 -68.21, 57.85 126.78 2.21 21
12 04/30/2019 20:53:58 67.22,-133.61 52.22 04/30/2019 20:52:51 67.26,-135.59 52.26 85.29 67
13 05/03/2019 11:29:44 68.30, 6.21 52.52 05/03/2019 11:30:09 68.33, 6.23 52.54 3.13 25
14 05/03/2019 12:20:26 -68.19, 173.66 127.60 05/03/2019 12:19:40 -68.17, 173.67 127.63 2.99 46

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/20/2019
SNOs_Map_NPP_TERRA_20190420.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/20/2019 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service