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: 4/20/2020
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 04/22/2020 02:55:52 -68.37, -45.46 124.07 04/22/2020 02:56:57 -68.37, -45.46 124.07 0.45 65
2 04/22/2020 03:46:36 68.24, 122.01 55.80 04/22/2020 03:46:24 68.26, 122.05 55.81 2.40 12
3 04/22/2020 04:37:11 -67.79, -70.09 124.68 04/22/2020 04:35:59 -67.87, -70.77 124.59 30.03 72
4 04/24/2020 19:12:46 -68.31, 70.40 125.02 04/24/2020 19:13:25 -68.31, 70.36 125.01 1.82 39
5 04/24/2020 20:03:30 68.18,-122.14 54.85 04/24/2020 20:02:52 68.20,-122.13 54.86 1.59 38
6 04/27/2020 10:39:06 68.82, 18.18 54.66 04/27/2020 10:40:16 68.69, 19.08 54.52 38.96 70
7 04/27/2020 11:29:40 -68.30,-173.82 125.89 04/27/2020 11:29:51 -68.31,-173.76 125.88 2.79 11
8 04/27/2020 12:20:23 68.12, -6.29 53.93 04/27/2020 12:19:19 68.13, -6.32 53.94 1.49 64
9 04/30/2020 02:55:52 68.33, 134.59 53.33 04/30/2020 02:56:49 68.34, 134.54 53.34 2.43 57
10 04/30/2020 03:46:34 -68.23, -57.97 126.78 04/30/2020 03:46:19 -68.24, -57.95 126.78 0.97 15
11 04/30/2020 04:37:06 67.47, 110.29 52.44 04/30/2020 04:35:57 67.50, 108.85 52.48 61.47 69
12 05/02/2020 19:12:47 68.33,-109.63 52.52 05/02/2020 19:13:16 68.32,-109.59 52.51 1.82 29
13 05/02/2020 20:03:28 -68.17, 57.88 127.65 05/02/2020 20:02:47 -68.17, 57.86 127.65 1.28 41

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/20/2020
SNOs_Map_NPP_TERRA_20200420.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/20/2020 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service