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: 9/16/2017
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 09/18/2017 10:39:44 -68.43,-161.32 113.39 09/18/2017 10:40:50 -68.42,-161.38 113.40 2.57 66
2 09/18/2017 11:30:28 68.30, 6.16 66.50 09/18/2017 11:30:17 68.31, 6.13 66.51 1.81 11
3 09/18/2017 12:21:04 -67.89, 173.99 113.90 09/18/2017 12:19:52 -67.93, 173.31 113.87 28.51 72
4 09/21/2017 02:56:41 -68.43, -45.56 112.35 09/21/2017 02:57:19 -68.42, -45.50 112.36 2.65 38
5 09/21/2017 03:47:24 68.25, 121.98 67.49 09/21/2017 03:46:47 68.25, 121.94 67.49 1.81 37
6 09/23/2017 18:23:02 68.90, -97.74 69.16 09/23/2017 18:24:12 68.81, -96.78 69.07 39.74 70
7 09/23/2017 19:13:36 -68.39, 70.27 111.35 09/23/2017 19:13:48 -68.38, 70.32 111.36 2.61 12
8 09/23/2017 20:04:19 68.21,-122.19 68.49 09/23/2017 20:03:16 68.20,-122.24 68.48 2.13 63
9 09/26/2017 10:39:50 68.43, 18.66 69.73 09/26/2017 10:40:48 68.44, 18.63 69.73 1.07 58
10 09/26/2017 11:30:32 -68.35,-173.91 110.35 09/26/2017 11:30:18 -68.33,-173.86 110.36 2.71 14
11 09/26/2017 12:21:05 67.63, -5.70 68.96 09/26/2017 12:19:55 67.66, -7.00 68.97 55.08 70
12 09/29/2017 02:56:46 68.40, 134.48 70.74 09/29/2017 02:57:18 68.40, 134.46 70.74 0.60 32
13 09/29/2017 03:47:28 -68.31, -58.09 109.34 09/29/2017 03:46:48 -68.30, -58.02 109.35 3.01 40

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 9/16/2017
SNOs_Map_NPP_TERRA_20170916.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 09/16/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service