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: 4/16/2020
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 04/16/2020 19:12:48 68.34,-109.66 57.74 04/16/2020 19:13:29 68.35,-109.62 57.74 1.55 41
2 04/16/2020 20:03:29 -68.21, 57.83 122.41 04/16/2020 20:03:00 -68.18, 57.81 122.44 3.22 29
3 04/19/2020 10:39:11 -69.10,-162.21 122.41 04/19/2020 10:40:20 -68.96,-160.62 122.57 64.96 69
4 04/19/2020 11:29:42 68.28, 6.20 56.74 04/19/2020 11:29:57 68.29, 6.20 56.75 1.55 15
5 04/19/2020 12:20:23 -68.14, 173.69 123.41 04/19/2020 12:19:28 -68.13, 173.64 123.42 2.46 55
6 04/22/2020 02:55:52 -68.39, -45.49 124.04 04/22/2020 02:56:56 -68.41, -45.42 124.04 3.10 64
7 04/22/2020 03:46:35 68.22, 122.05 55.77 04/22/2020 03:46:24 68.23, 122.02 55.79 2.08 11
8 04/22/2020 04:37:11 -67.81, -70.12 124.66 04/22/2020 04:35:59 -67.85, -70.80 124.61 28.85 72
9 04/24/2020 19:12:46 -68.33, 70.37 124.99 04/24/2020 19:13:24 -68.35, 70.40 124.98 2.01 38
10 04/24/2020 20:03:29 68.16,-122.11 54.83 04/24/2020 20:02:52 68.17,-122.17 54.84 2.76 37
11 04/27/2020 10:39:06 68.80, 18.21 54.64 04/27/2020 10:40:17 68.66, 19.04 54.49 36.91 71
12 04/27/2020 11:29:40 -68.27,-173.78 125.91 04/27/2020 11:29:52 -68.28,-173.79 125.91 0.91 12
13 04/27/2020 12:20:24 68.16, -6.33 53.97 04/27/2020 12:19:19 68.16, -6.29 53.96 1.62 65
14 04/30/2020 02:55:53 68.37, 134.55 53.37 04/30/2020 02:56:49 68.36, 134.56 53.36 1.11 56

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/16/2020
SNOs_Map_NPP_TERRA_20200416.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/16/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service