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: 3/30/2017
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 03/31/2017 19:12:42 -68.36, 70.42 116.19 03/31/2017 19:13:20 -68.37, 70.47 116.19 2.43 38
2 03/31/2017 20:03:25 68.19,-122.06 63.62 03/31/2017 20:02:48 68.20,-122.08 63.64 1.81 37
3 04/03/2017 10:39:04 68.87, 18.18 63.32 04/03/2017 10:40:14 68.74, 19.18 63.17 42.76 70
4 04/03/2017 11:29:37 -68.29,-173.73 117.29 04/03/2017 11:29:50 -68.30,-173.73 117.29 0.93 13
5 04/03/2017 12:20:21 68.18, -6.28 62.58 04/03/2017 12:19:17 68.19, -6.21 62.59 2.83 64
6 04/06/2017 02:55:51 68.39, 134.60 61.80 04/06/2017 02:56:49 68.39, 134.63 61.79 1.16 58
7 04/06/2017 03:46:32 -68.23, -57.88 118.38 04/06/2017 03:46:20 -68.23, -57.93 118.38 2.00 12
8 04/06/2017 04:37:06 67.58, 110.23 60.95 04/06/2017 04:35:56 67.61, 108.99 61.00 52.60 70
9 04/08/2017 19:12:46 68.33,-109.56 60.73 04/08/2017 19:13:19 68.30,-109.59 60.70 3.37 33
10 04/08/2017 20:03:28 -68.22, 57.89 119.39 04/08/2017 20:02:49 -68.20, 57.92 119.42 2.88 39
11 04/11/2017 10:39:04 -68.80,-161.73 119.77 04/11/2017 10:40:15 -68.66,-160.91 119.92 36.58 71
12 04/11/2017 11:29:40 68.27, 6.28 59.69 04/11/2017 11:29:47 68.26, 6.25 59.67 1.82 7
13 04/11/2017 12:20:22 -68.17, 173.73 120.44 04/11/2017 12:19:17 -68.16, 173.76 120.44 1.31 65

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 3/30/2017
SNOs_Map_NPP_TERRA_20170401.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 03/30/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service