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: 7/14/2017
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 07/16/2017 10:39:13 -69.36,-162.45 131.97 07/16/2017 10:40:20 -69.22,-160.27 132.17 87.41 67
2 07/16/2017 11:29:40 68.33, 6.25 46.97 07/16/2017 11:30:01 68.33, 6.26 46.96 0.57 21
3 07/16/2017 12:20:21 -68.20, 173.75 133.17 07/16/2017 12:19:32 -68.17, 173.71 133.19 3.20 49
4 07/19/2017 02:55:52 -68.54, -45.54 132.36 07/19/2017 02:57:04 -68.48, -45.32 132.43 10.74 72
5 07/19/2017 03:46:34 68.31, 122.06 47.41 07/19/2017 03:46:32 68.31, 122.11 47.41 2.13 2
6 07/19/2017 04:37:15 -68.17, -70.44 132.73 07/19/2017 04:36:03 -68.15, -70.44 132.74 1.42 72
7 07/21/2017 19:12:44 -68.40, 70.41 131.99 07/21/2017 19:13:36 -68.40, 70.45 132.00 1.91 52
8 07/21/2017 20:03:27 68.23,-122.07 47.85 07/21/2017 20:03:04 68.23,-122.11 47.84 1.87 23
9 07/21/2017 20:53:55 -67.39, 46.30 133.02 07/21/2017 20:52:46 -67.46, 44.64 132.90 71.26 69
10 07/24/2017 11:29:37 -68.33,-173.72 131.52 07/24/2017 11:30:08 -68.32,-173.77 131.53 2.37 31
11 07/24/2017 12:20:21 68.22, -6.27 48.38 07/24/2017 12:19:35 68.20, -6.27 48.37 1.58 46
12 07/27/2017 02:55:53 68.68, 134.28 49.43 07/27/2017 02:57:04 68.61, 134.82 49.34 22.79 71
13 07/27/2017 03:46:30 -68.30, -57.91 130.95 07/27/2017 03:46:38 -68.29, -57.94 130.97 1.94 8
14 07/27/2017 04:37:13 68.14, 109.60 48.89 07/27/2017 04:36:05 68.17, 109.56 48.92 3.03 68

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 7/14/2017
SNOs_Map_NPP_TERRA_20170715.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 07/14/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service