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: 4/14/2020
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 04/14/2020 04:37:14 67.89, 109.77 58.21 04/14/2020 04:36:02 67.94, 109.29 58.27 21.29 72
2 04/16/2020 19:12:48 68.35,-109.67 57.75 04/16/2020 19:13:29 68.34,-109.63 57.73 2.20 41
3 04/16/2020 20:03:29 -68.22, 57.82 122.40 04/16/2020 20:02:59 -68.23, 57.87 122.39 2.31 30
4 04/19/2020 10:39:11 -69.11,-162.21 122.41 04/19/2020 10:40:20 -68.96,-160.63 122.58 65.33 69
5 04/19/2020 11:29:42 68.29, 6.18 56.75 04/19/2020 11:29:57 68.29, 6.19 56.75 0.37 15
6 04/19/2020 12:20:23 -68.15, 173.68 123.41 04/19/2020 12:19:28 -68.12, 173.63 123.43 3.42 55
7 04/22/2020 02:55:52 -68.35, -45.42 124.09 04/22/2020 02:56:58 -68.35, -45.49 124.09 2.82 66
8 04/22/2020 03:46:35 68.23, 122.04 55.78 04/22/2020 03:46:24 68.23, 122.01 55.78 1.09 11
9 04/22/2020 04:37:11 -67.81, -70.13 124.65 04/22/2020 04:35:59 -67.85, -70.80 124.61 28.62 72
10 04/24/2020 19:12:46 -68.33, 70.36 124.99 04/24/2020 19:13:24 -68.35, 70.40 124.98 1.98 38
11 04/24/2020 20:03:29 68.17,-122.11 54.83 04/24/2020 20:02:52 68.17,-122.17 54.84 2.33 37
12 04/27/2020 10:39:06 68.80, 18.20 54.64 04/27/2020 10:40:17 68.66, 19.04 54.49 37.13 71
13 04/27/2020 11:29:40 -68.27,-173.79 125.91 04/27/2020 11:29:52 -68.29,-173.79 125.90 1.56 12
14 04/27/2020 12:20:24 68.16, -6.34 53.97 04/27/2020 12:19:19 68.16, -6.29 53.97 2.05 65

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/14/2020
SNOs_Map_NPP_TERRA_20200414.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/14/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service