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: 4/28/2019
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 04/28/2019 04:37:18 68.05, 109.61 53.88 04/28/2019 04:36:05 68.06, 109.45 53.89 7.03 73
2 04/30/2019 19:12:51 68.37,-109.66 53.40 04/30/2019 19:13:36 68.35,-109.61 53.37 3.32 45
3 04/30/2019 20:03:32 -68.23, 57.84 126.77 04/30/2019 20:03:06 -68.24, 57.89 126.76 2.33 26
4 04/30/2019 20:53:57 67.08,-133.45 52.07 04/30/2019 20:52:51 67.12,-135.74 52.13 98.92 66
5 05/03/2019 10:39:18 -69.24,-162.38 126.52 05/03/2019 10:40:26 -69.13,-160.40 126.64 79.14 68
6 05/03/2019 11:29:46 68.27, 6.23 52.49 05/03/2019 11:30:06 68.30, 6.21 52.52 3.28 20
7 05/03/2019 12:20:28 -68.18, 173.67 127.62 05/03/2019 12:19:36 -68.19, 173.71 127.61 2.34 52
8 05/06/2019 02:55:59 -68.39, -45.47 128.15 05/06/2019 02:57:08 -68.41, -45.42 128.14 2.72 69
9 05/06/2019 03:46:42 68.23, 122.05 51.67 05/06/2019 03:46:36 68.24, 122.02 51.69 2.35 6
10 05/06/2019 04:37:21 -67.97, -70.30 128.60 05/06/2019 04:36:08 -68.03, -70.61 128.54 14.24 73
11 05/08/2019 19:12:54 -68.35, 70.35 128.94 05/08/2019 19:13:37 -68.35, 70.38 128.94 1.19 43
12 05/08/2019 20:03:37 68.18,-122.13 50.89 05/08/2019 20:03:05 68.18,-122.18 50.89 2.08 32
13 05/11/2019 10:39:19 69.00, 17.94 51.03 05/11/2019 10:40:28 68.89, 19.29 50.91 55.52 69
14 05/11/2019 11:29:50 -68.30,-173.82 129.69 05/11/2019 11:30:07 -68.29,-173.82 129.71 1.99 17
15 05/11/2019 12:20:33 68.14, -6.31 50.14 05/11/2019 12:19:34 68.17, -6.31 50.17 2.87 59

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/28/2019
SNOs_Map_NPP_TERRA_20190428.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/28/2019 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service