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: 10/2/2017
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 10/04/2017 10:39:51 -68.46,-161.30 107.14 10/04/2017 10:40:43 -68.49,-161.29 107.11 3.03 52
2 10/04/2017 11:30:35 68.33, 6.19 72.74 10/04/2017 11:30:11 68.32, 6.15 72.73 1.80 24
3 10/04/2017 12:21:02 -67.44, 174.60 108.12 10/04/2017 12:19:54 -67.49, 172.82 108.10 75.82 68
4 10/07/2017 02:06:21 69.42, 145.85 74.83 10/07/2017 02:07:28 69.30, 147.99 74.74 84.98 67
5 10/07/2017 02:56:46 -68.43, -45.49 106.14 10/07/2017 02:57:12 -68.42, -45.49 106.15 1.03 26
6 10/07/2017 03:47:30 68.30, 121.99 73.75 10/07/2017 03:46:39 68.30, 122.01 73.75 1.36 51
7 10/09/2017 18:22:58 68.48, -97.11 74.92 10/09/2017 18:24:09 68.51, -97.14 74.95 3.10 71
8 10/09/2017 19:13:40 -68.40, 70.31 105.15 10/09/2017 19:13:39 -68.40, 70.37 105.15 2.52 1
9 10/09/2017 20:04:21 68.11,-122.01 74.58 10/09/2017 20:03:08 68.17,-122.26 74.64 12.70 73
10 10/12/2017 10:39:53 68.45, 18.69 75.91 10/12/2017 10:40:37 68.48, 18.71 75.93 3.23 44
11 10/12/2017 11:30:34 -68.32,-173.82 104.22 10/12/2017 11:30:08 -68.32,-173.84 104.22 1.23 26
12 10/15/2017 02:06:18 -69.30, -34.00 102.28 10/15/2017 02:07:26 -69.23, -32.10 102.31 75.21 68
13 10/15/2017 02:56:47 68.37, 134.55 76.83 10/15/2017 02:57:06 68.39, 134.49 76.84 3.57 19
14 10/15/2017 03:47:29 -68.29, -58.02 103.25 10/15/2017 03:46:36 -68.29, -58.00 103.25 1.07 53

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 10/2/2017
SNOs_Map_NPP_TERRA_20171002.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 10/02/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service