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: 4/27/2017
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 04/30/2017 02:55:55 -68.37, -45.40 126.55 04/30/2017 02:56:55 -68.36, -45.42 126.56 1.14 60
2 04/30/2017 03:46:39 68.25, 122.06 53.32 04/30/2017 03:46:22 68.26, 122.09 53.33 1.73 17
3 04/30/2017 04:37:11 -67.62, -69.84 127.32 04/30/2017 04:36:00 -67.70, -70.92 127.24 46.83 71
4 05/02/2017 19:12:50 -68.33, 70.42 127.39 05/02/2017 19:13:25 -68.34, 70.42 127.39 0.73 35
5 05/02/2017 20:03:34 68.21,-122.12 52.48 05/02/2017 20:02:52 68.23,-122.06 52.50 3.18 42
6 05/05/2017 10:39:10 68.77, 18.30 52.29 05/05/2017 10:40:21 68.64, 19.03 52.15 33.07 71
7 05/05/2017 11:29:45 -68.30,-173.77 128.20 05/05/2017 11:29:55 -68.31,-173.74 128.20 1.44 10
8 05/05/2017 12:20:28 68.13, -6.24 51.62 05/05/2017 12:19:23 68.14, -6.29 51.63 2.42 65
9 05/08/2017 02:55:58 68.36, 134.60 51.13 05/08/2017 02:56:55 68.37, 134.59 51.14 1.20 57
10 05/08/2017 03:46:40 -68.27, -57.96 128.97 05/08/2017 03:46:25 -68.26, -57.91 128.98 2.08 15
11 05/08/2017 04:37:12 67.50, 110.30 50.25 05/08/2017 04:36:02 67.59, 108.95 50.34 57.92 70
12 05/10/2017 19:12:52 68.33,-109.59 50.40 05/10/2017 19:13:24 68.32,-109.60 50.38 1.66 32
13 05/10/2017 20:03:33 -68.19, 57.92 129.77 05/10/2017 20:02:54 -68.21, 57.91 129.74 3.25 39

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/27/2017
SNOs_Map_NPP_TERRA_20170429.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/27/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service