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: 2/20/2017
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 02/22/2017 10:39:19 -68.42,-161.30 101.58 02/22/2017 10:40:17 -68.41,-161.29 101.61 1.86 58
2 02/22/2017 11:30:03 68.28, 6.19 78.27 02/22/2017 11:29:44 68.29, 6.21 78.27 1.03 19
3 02/22/2017 12:20:34 -67.62, 174.33 102.43 02/22/2017 12:19:23 -67.69, 173.15 102.33 50.65 71
4 02/25/2017 02:56:11 -68.34, -45.42 102.65 02/25/2017 02:56:48 -68.36, -45.47 102.64 2.94 37
5 02/25/2017 03:46:56 68.26, 121.99 77.26 02/25/2017 03:46:15 68.24, 122.03 77.23 3.09 41
6 02/27/2017 18:22:31 68.94, -97.75 76.97 02/27/2017 18:23:41 68.83, -96.66 76.82 45.27 70
7 02/27/2017 19:13:03 -68.32, 70.39 103.68 02/27/2017 19:13:18 -68.34, 70.38 103.67 2.49 15
8 02/27/2017 20:03:47 68.19,-122.14 76.17 02/27/2017 20:02:45 68.22,-122.12 76.21 3.14 62
9 03/02/2017 10:39:15 68.44, 18.70 75.44 03/02/2017 10:40:19 68.44, 18.74 75.43 1.74 64
10 03/02/2017 11:29:56 -68.30,-173.81 104.73 03/02/2017 11:29:50 -68.30,-173.81 104.73 0.67 6
11 03/02/2017 12:20:34 67.85, -5.94 74.80 03/02/2017 12:19:22 67.89, -6.64 74.87 29.68 72
12 03/05/2017 02:56:07 68.37, 134.56 74.33 03/05/2017 02:56:52 68.36, 134.51 74.32 2.33 45
13 03/05/2017 03:46:49 -68.29, -58.01 105.78 03/05/2017 03:46:22 -68.27, -57.97 105.79 2.19 27

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 2/20/2017
SNOs_Map_NPP_TERRA_20170220.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 02/20/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service