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: 4/17/2019
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 04/20/2019 02:55:52 -68.62, -45.72 122.88 04/20/2019 02:57:03 -68.57, -45.22 122.94 21.30 71
2 04/20/2019 03:46:31 68.22, 122.10 56.71 04/20/2019 03:46:34 68.24, 122.03 56.72 3.06 3
3 04/20/2019 04:37:13 -68.14, -70.48 123.39 04/20/2019 04:36:04 -68.13, -70.47 123.40 1.38 69
4 04/22/2019 19:12:44 -68.34, 70.40 124.07 04/22/2019 19:13:36 -68.35, 70.40 124.06 0.99 52
5 04/22/2019 20:03:28 68.22,-122.14 55.80 04/22/2019 20:03:03 68.24,-122.08 55.82 3.14 25
6 04/22/2019 20:53:55 -67.32, 46.28 125.12 04/22/2019 20:52:46 -67.41, 44.59 125.02 73.22 69
7 04/25/2019 10:39:15 69.29, 17.56 56.03 04/25/2019 10:40:22 69.18, 19.68 55.89 84.43 67
8 04/25/2019 11:29:40 -68.29,-173.76 125.01 04/25/2019 11:30:06 -68.29,-173.79 125.01 1.41 26
9 04/25/2019 12:20:24 68.17, -6.30 54.86 04/25/2019 12:19:33 68.18, -6.28 54.87 1.53 51
10 04/28/2019 02:55:55 68.38, 134.56 54.24 04/28/2019 02:57:05 68.38, 134.56 54.23 0.55 70
11 04/28/2019 03:46:37 -68.28, -57.99 125.88 04/28/2019 03:46:35 -68.27, -57.93 125.89 2.71 2
12 04/28/2019 04:37:17 67.95, 109.73 53.78 04/28/2019 04:36:05 67.99, 109.38 53.82 15.26 72
13 04/30/2019 19:12:50 68.33,-109.61 53.35 04/30/2019 19:13:33 68.34,-109.60 53.36 1.28 43
14 04/30/2019 20:03:31 -68.17, 57.91 126.82 04/30/2019 20:03:04 -68.18, 57.84 126.81 2.99 27

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/17/2019
SNOs_Map_NPP_TERRA_20190418.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/17/2019 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service