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: 4/17/2020
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 04/19/2020 10:39:10 -69.06,-162.16 122.45 04/19/2020 10:40:19 -69.00,-160.57 122.54 63.48 69
2 04/19/2020 11:29:42 68.30, 6.17 56.76 04/19/2020 11:29:57 68.27, 6.18 56.73 2.74 15
3 04/19/2020 12:20:23 -68.16, 173.67 123.39 04/19/2020 12:19:27 -68.17, 173.68 123.39 0.71 56
4 04/22/2020 02:55:52 -68.36, -45.44 124.08 04/22/2020 02:56:57 -68.38, -45.45 124.06 2.69 65
5 04/22/2020 03:46:36 68.24, 122.02 55.79 04/22/2020 03:46:25 68.21, 121.99 55.76 3.12 11
6 04/22/2020 04:37:11 -67.77, -70.08 124.69 04/22/2020 04:35:59 -67.88, -70.76 124.58 31.18 72
7 04/24/2020 19:12:45 -68.30, 70.41 125.03 04/24/2020 19:13:24 -68.32, 70.36 125.01 3.12 39
8 04/24/2020 20:03:29 68.18,-122.13 54.84 04/24/2020 20:02:51 68.20,-122.13 54.86 2.34 38
9 04/27/2020 10:39:05 68.76, 18.26 54.60 04/27/2020 10:40:16 68.68, 19.07 54.51 33.86 71
10 04/27/2020 11:29:40 -68.29,-173.81 125.90 04/27/2020 11:29:51 -68.30,-173.77 125.89 2.11 11
11 04/27/2020 12:20:23 68.12, -6.28 53.93 04/27/2020 12:19:19 68.12, -6.33 53.93 1.95 64
12 04/30/2020 02:55:53 68.38, 134.53 53.38 04/30/2020 02:56:48 68.38, 134.59 53.37 2.59 55
13 04/30/2020 03:46:34 -68.23, -57.96 126.79 04/30/2020 03:46:19 -68.22, -57.97 126.80 1.13 15
14 04/30/2020 04:37:06 67.47, 110.29 52.44 04/30/2020 04:35:56 67.54, 108.89 52.52 60.06 70

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/17/2020
SNOs_Map_NPP_TERRA_20200417.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/17/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service