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: 4/23/2018
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 04/25/2018 03:46:45 -68.30, -58.03 124.98 04/25/2018 03:47:17 -68.29, -58.04 124.99 1.10 32
2 04/25/2018 04:37:29 68.18, 109.43 54.90 04/25/2018 04:36:44 68.18, 109.48 54.90 2.06 45
3 04/27/2018 19:13:03 68.68,-110.08 54.57 04/27/2018 19:14:14 68.58,-109.46 54.46 27.63 71
4 04/27/2018 20:03:39 -68.26, 57.79 125.88 04/27/2018 20:03:48 -68.25, 57.77 125.89 1.53 9
5 04/27/2018 20:54:23 68.15,-134.76 54.00 04/27/2018 20:53:15 68.14,-134.71 54.00 2.33 68
6 04/30/2018 11:29:52 68.32, 6.16 53.37 04/30/2018 11:30:49 68.35, 6.14 53.40 3.35 57
7 04/30/2018 12:20:34 -68.22, 173.60 126.74 04/30/2018 12:20:19 -68.25, 173.65 126.72 3.18 15
8 04/30/2018 13:11:06 67.47, -18.15 52.49 04/30/2018 13:09:57 67.52, -19.55 52.55 59.76 69
9 05/03/2018 03:46:47 68.30, 121.96 52.54 05/03/2018 03:47:21 68.29, 121.93 52.53 1.63 34
10 05/03/2018 04:37:29 -68.19, -70.59 127.58 05/03/2018 04:36:51 -68.18, -70.56 127.59 1.74 38
11 05/05/2018 19:13:08 -68.91, 69.61 127.61 05/05/2018 19:14:18 -68.76, 70.74 127.76 48.18 70
12 05/05/2018 20:03:42 68.27,-122.23 51.74 05/05/2018 20:03:52 68.26,-122.22 51.73 0.86 10
13 05/05/2018 20:54:24 -68.17, 45.22 128.38 05/05/2018 20:53:22 -68.16, 45.29 128.39 2.88 62

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/23/2018
SNOs_Map_NPP_TERRA_20180423.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/23/2018 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service