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: 9/12/2017
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 09/13/2017 02:56:36 68.40, 134.49 64.53 09/13/2017 02:57:18 68.40, 134.49 64.53 0.42 42
2 09/13/2017 03:47:17 -68.26, -58.01 115.60 09/13/2017 03:46:48 -68.29, -58.01 115.57 2.93 29
3 09/15/2017 18:23:01 -69.17, 81.91 113.68 09/15/2017 18:24:10 -69.06, 83.55 113.79 65.94 69
4 09/15/2017 19:13:32 68.35,-109.67 65.51 09/15/2017 19:13:48 68.34,-109.70 65.50 1.83 16
5 09/15/2017 20:04:13 -68.21, 57.82 114.62 09/15/2017 20:03:18 -68.23, 57.80 114.60 2.54 55
6 09/18/2017 10:39:44 -68.43,-161.32 113.39 09/18/2017 10:40:50 -68.45,-161.33 113.37 2.86 66
7 09/18/2017 11:30:28 68.30, 6.15 66.50 09/18/2017 11:30:18 68.28, 6.10 66.47 3.21 10
8 09/18/2017 12:21:04 -67.89, 173.99 113.90 09/18/2017 12:19:52 -67.95, 173.35 113.84 27.42 72
9 09/21/2017 02:56:40 -68.38, -45.49 112.40 09/21/2017 02:57:20 -68.40, -45.52 112.38 2.35 40
10 09/21/2017 03:47:24 68.26, 121.98 67.49 09/21/2017 03:46:47 68.28, 121.98 67.51 2.53 37
11 09/23/2017 18:23:02 68.91, -97.74 69.16 09/23/2017 18:24:12 68.83, -96.74 69.09 41.14 70
12 09/23/2017 19:13:35 -68.34, 70.33 111.40 09/23/2017 19:13:49 -68.35, 70.29 111.39 1.92 14
13 09/23/2017 20:04:19 68.21,-122.20 68.49 09/23/2017 20:03:16 68.23,-122.21 68.50 1.18 63

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 9/12/2017
SNOs_Map_NPP_TERRA_20170912.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 09/12/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service