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: 5/17/2018
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 05/19/2018 03:46:49 68.34, 121.91 48.48 05/19/2018 03:47:33 68.31, 121.92 48.45 3.32 44
2 05/19/2018 04:37:30 -68.20, -70.59 131.67 05/19/2018 04:37:03 -68.20, -70.58 131.67 0.53 27
3 05/21/2018 19:13:16 -69.30, 69.08 131.10 05/21/2018 19:14:23 -69.17, 71.22 131.24 85.73 67
4 05/21/2018 20:03:43 68.27,-122.23 47.86 05/21/2018 20:04:04 68.29,-122.24 47.87 1.84 21
5 05/21/2018 20:54:25 -68.18, 45.20 132.24 05/21/2018 20:53:34 -68.18, 45.27 132.25 2.78 51
6 05/24/2018 11:29:55 -68.43,-173.97 132.49 05/24/2018 11:31:07 -68.42,-173.85 132.50 5.19 72
7 05/24/2018 12:20:38 68.26, -6.44 47.33 05/24/2018 12:20:35 68.25, -6.40 47.32 1.46 3
8 05/24/2018 13:11:19 -68.11, 161.06 132.82 05/24/2018 13:10:06 -68.09, 161.04 132.84 2.34 73
9 05/27/2018 03:46:47 -68.31, -58.04 133.08 05/27/2018 03:47:38 -68.33, -58.08 133.07 2.72 51
10 05/27/2018 04:37:31 68.19, 109.42 46.79 05/27/2018 04:37:05 68.21, 109.42 46.81 2.47 26
11 05/27/2018 05:27:57 -67.24, -82.10 134.17 05/27/2018 05:26:49 -67.33, -83.96 134.07 80.40 68
12 05/29/2018 19:13:17 69.30,-110.93 47.51 05/29/2018 19:14:24 69.22,-108.73 47.41 86.98 67
13 05/29/2018 20:03:42 -68.30, 57.74 133.52 05/29/2018 20:04:09 -68.28, 57.73 133.54 1.86 27
14 05/29/2018 20:54:26 68.18,-134.80 46.36 05/29/2018 20:53:36 68.16,-134.76 46.34 2.44 50

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 5/17/2018
SNOs_Map_NPP_TERRA_20180517.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 05/17/2018 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service