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: 8/15/2017
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 08/17/2017 10:39:30 -68.94,-161.93 124.42 08/17/2017 10:40:41 -68.82,-160.85 124.57 45.20 71
2 08/17/2017 11:30:05 68.34, 6.17 54.98 08/17/2017 11:30:15 68.32, 6.19 54.96 1.77 10
3 08/17/2017 12:20:46 -68.19, 173.68 125.17 08/17/2017 12:19:45 -68.21, 173.69 125.14 2.82 61
4 08/20/2017 02:56:18 -68.43, -45.49 124.07 08/20/2017 02:57:18 -68.42, -45.47 124.09 1.48 60
5 08/20/2017 03:47:01 68.26, 122.03 55.77 08/20/2017 03:46:46 68.26, 121.98 55.76 2.31 15
6 08/20/2017 04:37:34 -67.68, -69.92 124.82 08/20/2017 04:36:23 -67.76, -70.97 124.72 44.98 71
7 08/22/2017 19:13:14 -68.36, 70.37 123.26 08/22/2017 19:13:49 -68.35, 70.32 123.27 1.94 35
8 08/22/2017 20:03:58 68.24,-122.18 56.64 08/22/2017 20:03:16 68.24,-122.16 56.64 0.81 42
9 08/25/2017 10:39:33 68.71, 18.35 58.01 08/25/2017 10:40:45 68.60, 18.87 57.89 24.08 72
10 08/25/2017 11:30:10 -68.34,-173.84 122.37 08/25/2017 11:30:18 -68.33,-173.82 122.37 0.80 8
11 08/25/2017 12:20:53 68.17, -6.32 57.49 08/25/2017 12:19:46 68.16, -6.38 57.48 2.70 67
12 08/28/2017 02:56:25 68.42, 134.49 58.65 08/28/2017 02:57:18 68.41, 134.51 58.63 1.79 53
13 08/28/2017 03:47:06 -68.26, -57.98 121.50 08/28/2017 03:46:49 -68.25, -58.04 121.52 2.88 17
14 08/28/2017 04:37:36 67.40, 110.39 57.64 08/28/2017 04:36:28 67.46, 108.69 57.72 72.91 68

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 8/15/2017
SNOs_Map_NPP_TERRA_20170815.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 08/15/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service