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: 4/29/2019
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 04/30/2019 19:12:50 68.33,-109.61 53.36 04/30/2019 19:13:36 68.35,-109.61 53.37 1.68 46
2 04/30/2019 20:03:31 -68.19, 57.89 126.80 04/30/2019 20:03:07 -68.18, 57.83 126.81 2.78 24
3 04/30/2019 20:53:57 67.09,-133.47 52.09 04/30/2019 20:52:51 67.12,-135.73 52.13 97.95 66
4 05/03/2019 10:39:18 -69.26,-162.40 126.50 05/03/2019 10:40:26 -69.15,-160.37 126.62 81.15 68
5 05/03/2019 11:29:46 68.29, 6.21 52.51 05/03/2019 11:30:07 68.27, 6.17 52.49 2.60 21
6 05/03/2019 12:20:27 -68.14, 173.72 127.66 05/03/2019 12:19:37 -68.16, 173.68 127.64 2.84 50
7 05/06/2019 02:55:58 -68.36, -45.42 128.19 05/06/2019 02:57:10 -68.36, -45.48 128.19 2.62 72
8 05/06/2019 03:46:42 68.24, 122.03 51.69 05/06/2019 03:46:37 68.25, 122.03 51.70 0.86 5
9 05/06/2019 04:37:22 -68.04, -70.39 128.53 05/06/2019 04:36:08 -68.09, -70.53 128.48 8.16 74
10 05/08/2019 19:12:55 -68.37, 70.33 128.92 05/08/2019 19:13:40 -68.35, 70.38 128.94 2.39 45
11 05/08/2019 20:03:38 68.20,-122.15 50.91 05/08/2019 20:03:08 68.18,-122.18 50.89 2.46 30
12 05/08/2019 20:54:01 -67.08, 46.54 130.23 05/08/2019 20:52:55 -67.13, 44.26 130.17 98.72 66
13 05/11/2019 10:39:21 69.12, 17.76 51.16 05/11/2019 10:40:29 69.01, 19.43 51.03 67.57 68
14 05/11/2019 11:29:49 -68.27,-173.78 129.72 05/11/2019 11:30:10 -68.29,-173.82 129.70 3.13 21
15 05/11/2019 12:20:33 68.16, -6.33 50.16 05/11/2019 12:19:37 68.18, -6.31 50.18 1.82 56

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/29/2019
SNOs_Map_NPP_TERRA_20190429.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/29/2019 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service