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: 4/7/2020
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 -68.32, 70.38 119.39 04/08/2020 19:13:37 -68.32, 70.32 119.38 2.77 51
2 04/08/2020 20:03:30 68.19,-122.14 60.47 04/08/2020 20:03:04 68.21,-122.17 60.50 3.03 26
3 04/08/2020 20:53:56 -67.25, 46.33 120.50 04/08/2020 20:52:48 -67.32, 44.44 120.40 81.42 68
4 04/11/2020 10:39:14 69.23, 17.60 60.58 04/11/2020 10:40:21 69.12, 19.56 60.43 78.65 67
5 04/11/2020 11:29:40 -68.30,-173.82 120.40 04/11/2020 11:30:04 -68.29,-173.84 120.41 1.20 24
6 04/11/2020 12:20:24 68.17, -6.35 59.46 04/11/2020 12:19:31 68.17, -6.33 59.47 0.75 53
7 04/14/2020 02:55:53 68.36, 134.55 58.71 04/14/2020 02:57:02 68.35, 134.49 58.69 2.78 69
8 04/14/2020 03:46:35 -68.27, -58.02 121.39 04/14/2020 03:46:32 -68.25, -58.00 121.42 3.18 3
9 04/14/2020 04:37:14 67.88, 109.78 58.20 04/14/2020 04:36:02 67.96, 109.31 58.28 21.74 72
10 04/16/2020 19:12:48 68.34,-109.66 57.74 04/16/2020 19:13:29 68.36,-109.61 57.75 2.35 41
11 04/16/2020 20:03:29 -68.20, 57.85 122.42 04/16/2020 20:03:00 -68.20, 57.84 122.42 0.36 29
12 04/19/2020 10:39:11 -69.09,-162.19 122.43 04/19/2020 10:40:20 -68.98,-160.59 122.55 64.66 69
13 04/19/2020 11:29:42 68.28, 6.20 56.74 04/19/2020 11:29:57 68.30, 6.22 56.76 3.07 15
14 04/19/2020 12:20:23 -68.13, 173.71 123.43 04/19/2020 12:19:28 -68.15, 173.67 123.40 2.87 55

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/7/2020
SNOs_Map_NPP_TERRA_20200407.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/07/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service