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: 7/17/2017
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 07/19/2017 02:55:52 -68.55, -45.56 132.35 07/19/2017 02:57:03 -68.53, -45.27 132.39 11.94 71
2 07/19/2017 03:46:34 68.32, 122.05 47.42 07/19/2017 03:46:32 68.30, 122.11 47.41 2.74 2
3 07/19/2017 04:37:14 -68.13, -70.39 132.77 07/19/2017 04:36:03 -68.14, -70.45 132.75 3.31 71
4 07/21/2017 19:12:44 -68.42, 70.39 131.98 07/21/2017 19:13:36 -68.40, 70.45 132.00 2.89 52
5 07/21/2017 20:03:27 68.24,-122.08 47.86 07/21/2017 20:03:04 68.23,-122.11 47.85 1.77 23
6 07/21/2017 20:53:55 -67.40, 46.28 133.00 07/21/2017 20:52:46 -67.46, 44.63 132.90 70.62 69
7 07/24/2017 11:29:37 -68.34,-173.73 131.51 07/24/2017 11:30:08 -68.33,-173.76 131.52 1.58 31
8 07/24/2017 12:20:21 68.23, -6.28 48.39 07/24/2017 12:19:35 68.22, -6.26 48.38 1.37 46
9 07/27/2017 02:55:54 68.69, 134.27 49.44 07/27/2017 02:57:06 68.58, 134.78 49.31 23.71 72
10 07/27/2017 03:46:31 -68.32, -57.93 130.94 07/27/2017 03:46:39 -68.32, -57.91 130.94 0.89 8
11 07/27/2017 04:37:14 68.16, 109.59 48.91 07/27/2017 04:36:07 68.14, 109.53 48.90 2.71 67
12 07/29/2017 19:12:42 68.40,-109.58 49.77 07/29/2017 19:13:39 68.40,-109.57 49.76 0.73 57
13 07/29/2017 20:03:23 -68.25, 57.94 130.39 07/29/2017 20:03:10 -68.25, 57.88 130.39 2.56 13
14 07/29/2017 20:53:56 67.55,-133.88 48.91 07/29/2017 20:52:46 67.62,-135.20 49.02 56.48 70

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 7/17/2017
SNOs_Map_NPP_TERRA_20170718.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 07/17/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service