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: 4/20/2017
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 04/22/2017 02:55:55 68.37, 134.60 56.03 04/22/2017 02:56:52 68.35, 134.57 56.00 2.91 57
2 04/22/2017 03:46:36 -68.22, -57.89 124.14 04/22/2017 03:46:22 -68.23, -57.93 124.13 2.34 14
3 04/22/2017 04:37:09 67.51, 110.30 55.14 04/22/2017 04:35:59 67.57, 108.94 55.20 58.23 70
4 04/24/2017 19:12:50 68.33,-109.57 55.10 04/24/2017 19:13:22 68.32,-109.58 55.09 0.40 32
5 04/24/2017 20:03:32 -68.23, 57.87 125.02 04/24/2017 20:02:52 -68.22, 57.92 125.03 2.87 40
6 04/27/2017 10:39:09 -68.83,-161.78 125.25 04/27/2017 10:40:20 -68.68,-160.92 125.41 38.45 71
7 04/27/2017 11:29:45 68.29, 6.25 54.19 04/27/2017 11:29:52 68.29, 6.25 54.19 0.26 7
8 04/27/2017 12:20:26 -68.14, 173.76 125.97 04/27/2017 12:19:23 -68.12, 173.69 125.98 2.94 63
9 04/30/2017 02:55:55 -68.36, -45.39 126.56 04/30/2017 02:56:54 -68.35, -45.44 126.58 2.67 59
10 04/30/2017 03:46:39 68.25, 122.06 53.32 04/30/2017 03:46:21 68.23, 122.07 53.30 1.94 18
11 04/30/2017 04:37:10 -67.56, -69.76 127.39 04/30/2017 04:36:00 -67.63, -71.00 127.31 53.12 70
12 05/02/2017 19:12:50 -68.33, 70.42 127.40 05/02/2017 19:13:23 -68.34, 70.43 127.39 0.94 33
13 05/02/2017 20:03:34 68.22,-122.12 52.48 05/02/2017 20:02:50 68.22,-122.07 52.49 2.43 44

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/20/2017
SNOs_Map_NPP_TERRA_20170422.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/20/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service