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: 4/21/2018
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 04/22/2018 11:29:50 -68.33,-173.84 124.06 04/22/2018 11:30:45 -68.32,-173.87 124.07 1.31 55
2 04/22/2018 12:20:34 68.21, -6.39 55.82 04/22/2018 12:20:12 68.22, -6.34 55.83 2.15 22
3 04/22/2018 13:11:03 -67.42, 161.91 125.00 04/22/2018 13:09:53 -67.49, 160.45 124.91 62.84 70
4 04/25/2018 03:46:44 -68.29, -58.02 124.99 04/25/2018 03:47:16 -68.30, -58.03 124.98 1.12 32
5 04/25/2018 04:37:28 68.17, 109.43 54.89 04/25/2018 04:36:43 68.20, 109.50 54.91 3.54 45
6 04/27/2018 19:13:03 68.67,-110.07 54.56 04/27/2018 19:14:14 68.60,-109.42 54.48 27.37 71
7 04/27/2018 20:03:39 -68.25, 57.80 125.88 04/27/2018 20:03:48 -68.26, 57.80 125.87 1.78 9
8 04/27/2018 20:54:22 68.08,-134.68 53.94 04/27/2018 20:53:16 68.11,-134.74 53.96 3.34 66
9 04/30/2018 11:29:52 68.32, 6.17 53.37 04/30/2018 11:30:50 68.34, 6.12 53.38 2.73 58
10 04/30/2018 12:20:34 -68.21, 173.61 126.75 04/30/2018 12:20:20 -68.23, 173.63 126.74 1.35 14
11 04/30/2018 13:11:07 67.51, -18.21 52.53 04/30/2018 13:09:57 67.56, -19.50 52.59 55.27 70
12 05/03/2018 03:46:47 68.29, 121.98 52.53 05/03/2018 03:47:22 68.29, 121.93 52.53 1.69 35
13 05/03/2018 04:37:29 -68.18, -70.57 127.59 05/03/2018 04:36:52 -68.18, -70.56 127.60 0.64 37

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/21/2018
SNOs_Map_NPP_TERRA_20180421.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/21/2018 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service