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: 7/19/2017
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 07/21/2017 19:12:43 -68.36, 70.46 132.03 07/21/2017 19:13:36 -68.38, 70.43 132.02 2.78 53
2 07/21/2017 20:03:27 68.24,-122.07 47.85 07/21/2017 20:03:03 68.27,-122.06 47.88 3.27 24
3 07/21/2017 20:53:55 -67.40, 46.28 133.01 07/21/2017 20:52:46 -67.44, 44.62 132.92 71.19 69
4 07/24/2017 11:29:37 -68.34,-173.73 131.51 07/24/2017 11:30:07 -68.35,-173.73 131.50 1.61 30
5 07/24/2017 12:20:21 68.22, -6.27 48.38 07/24/2017 12:19:34 68.23, -6.23 48.40 2.30 47
6 07/27/2017 02:55:54 68.68, 134.28 49.43 07/27/2017 02:57:05 68.57, 134.78 49.30 23.25 71
7 07/27/2017 03:46:31 -68.31, -57.92 130.95 07/27/2017 03:46:38 -68.31, -57.91 130.95 0.59 7
8 07/27/2017 04:37:14 68.20, 109.53 48.95 07/27/2017 04:36:04 68.19, 109.59 48.94 2.90 70
9 07/29/2017 19:12:42 68.39,-109.56 49.76 07/29/2017 19:13:37 68.41,-109.54 49.77 2.43 55
10 07/29/2017 20:03:23 -68.24, 57.95 130.40 07/29/2017 20:03:08 -68.26, 57.91 130.37 3.22 15
11 07/29/2017 20:53:55 67.48,-133.80 48.84 07/29/2017 20:52:46 67.52,-135.30 48.92 64.00 69
12 08/01/2017 11:29:36 68.38, 6.23 50.40 08/01/2017 11:30:08 68.35, 6.26 50.37 2.68 32
13 08/01/2017 12:20:17 -68.22, 173.76 129.76 08/01/2017 12:19:39 -68.20, 173.71 129.77 2.37 38

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 7/19/2017
SNOs_Map_NPP_TERRA_20170720.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 07/19/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service