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: 4/7/2017
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 04/08/2017 19:12:45 68.31,-109.54 60.71 04/08/2017 19:13:18 68.33,-109.57 60.73 2.06 33
2 04/08/2017 20:03:27 -68.22, 57.90 119.40 04/08/2017 20:02:48 -68.22, 57.94 119.40 1.47 39
3 04/11/2017 10:39:04 -68.80,-161.72 119.77 04/11/2017 10:40:15 -68.69,-160.89 119.90 35.56 71
4 04/11/2017 11:29:41 68.31, 6.23 59.72 04/11/2017 11:29:47 68.30, 6.28 59.71 2.45 6
5 04/11/2017 12:20:22 -68.16, 173.74 120.45 04/11/2017 12:19:18 -68.14, 173.72 120.47 2.57 64
6 04/14/2017 02:55:52 -68.37, -45.38 121.19 04/14/2017 02:56:49 -68.38, -45.38 121.18 1.51 57
7 04/14/2017 03:46:36 68.26, 122.07 58.69 04/14/2017 03:46:16 68.27, 122.12 58.70 2.58 20
8 04/14/2017 04:37:06 -67.51, -69.69 122.08 04/14/2017 04:35:56 -67.60, -71.01 121.97 57.09 70
9 04/16/2017 19:12:47 -68.31, 70.45 122.20 04/16/2017 19:13:18 -68.35, 70.46 122.17 3.42 31
10 04/16/2017 20:03:31 68.21,-122.10 57.69 04/16/2017 20:02:45 68.23,-122.04 57.71 3.60 46
11 04/19/2017 10:39:03 68.59, 18.55 57.16 04/19/2017 10:40:14 68.52, 18.92 57.09 16.70 71
12 04/19/2017 11:29:41 -68.26,-173.71 123.18 04/19/2017 11:29:47 -68.25,-173.77 123.20 3.00 6
13 04/19/2017 12:20:25 68.16, -6.27 56.70 04/19/2017 12:19:14 68.13, -6.27 56.68 3.11 71

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/7/2017
SNOs_Map_NPP_TERRA_20170409.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/07/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service