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: 4/19/2017
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 04/22/2017 02:55:55 68.36, 134.61 56.02 04/22/2017 02:56:52 68.36, 134.57 56.01 1.61 57
2 04/22/2017 03:46:37 -68.27, -57.95 124.09 04/22/2017 03:46:22 -68.25, -57.92 124.11 2.02 15
3 04/22/2017 04:37:09 67.50, 110.31 55.13 04/22/2017 04:35:59 67.58, 108.94 55.22 58.60 70
4 04/24/2017 19:12:50 68.32,-109.57 55.09 04/24/2017 19:13:22 68.35,-109.57 55.11 2.91 32
5 04/24/2017 20:03:32 -68.22, 57.87 125.02 04/24/2017 20:02:52 -68.24, 57.94 125.01 3.24 40
6 04/27/2017 10:39:08 -68.82,-161.77 125.26 04/27/2017 10:40:19 -68.71,-160.89 125.38 37.53 71
7 04/27/2017 11:29:44 68.28, 6.25 54.19 04/27/2017 11:29:52 68.27, 6.21 54.17 2.37 8
8 04/27/2017 12:20:26 -68.18, 173.69 125.92 04/27/2017 12:19:22 -68.16, 173.72 125.95 2.80 64
9 04/30/2017 02:55:56 -68.41, -45.45 126.51 04/30/2017 02:56:54 -68.40, -45.39 126.52 2.84 58
10 04/30/2017 03:46:39 68.25, 122.07 53.32 04/30/2017 03:46:22 68.23, 122.05 53.30 2.08 17
11 04/30/2017 04:37:11 -67.61, -69.82 127.34 04/30/2017 04:36:00 -67.68, -70.96 127.26 48.64 71
12 05/02/2017 19:12:50 -68.33, 70.43 127.40 05/02/2017 19:13:24 -68.35, 70.43 127.37 3.15 34
13 05/02/2017 20:03:34 68.22,-122.12 52.48 05/02/2017 20:02:51 68.24,-122.06 52.50 3.51 43

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/19/2017
SNOs_Map_NPP_TERRA_20170421.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/19/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service