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: 7/20/2019
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 07/22/2019 10:39:33 -68.37,-161.28 131.99 07/22/2019 10:40:20 -68.36,-161.32 132.00 1.70 47
2 07/22/2019 11:30:17 68.23, 6.20 47.88 07/22/2019 11:29:47 68.25, 6.19 47.90 1.89 30
3 07/22/2019 12:20:41 -67.19, 174.79 133.19 07/22/2019 12:19:34 -67.19, 172.62 133.12 93.67 67
4 07/25/2019 02:06:00 69.15, 146.11 49.37 07/25/2019 02:07:08 69.09, 147.83 49.25 68.28 68
5 07/25/2019 02:56:28 -68.33, -45.46 131.48 07/25/2019 02:56:50 -68.31, -45.50 131.50 2.36 22
6 07/25/2019 03:47:12 68.19, 122.02 48.39 07/25/2019 03:46:17 68.20, 122.01 48.40 0.89 55
7 07/27/2019 18:22:42 68.42, -97.12 49.20 07/27/2019 18:23:49 68.42, -97.13 49.19 0.33 67
8 07/27/2019 19:13:23 -68.28, 70.37 130.94 07/27/2019 19:13:20 -68.26, 70.31 130.96 3.29 3
9 07/27/2019 20:04:02 67.88,-121.82 48.66 07/27/2019 20:02:50 67.98,-122.38 48.77 25.53 72
10 07/30/2019 10:39:36 68.38, 18.70 49.79 07/30/2019 10:40:18 68.36, 18.68 49.76 1.89 42
11 07/30/2019 11:30:17 -68.24,-173.81 130.35 07/30/2019 11:29:48 -68.27,-173.81 130.33 2.53 29
12 08/02/2019 02:06:01 -69.21, -33.96 128.70 08/02/2019 02:07:09 -69.09, -32.18 128.87 71.79 68
13 08/02/2019 02:56:31 68.34, 134.52 50.41 08/02/2019 02:56:47 68.36, 134.56 50.43 2.72 16
14 08/02/2019 03:47:12 -68.20, -57.98 129.73 08/02/2019 03:46:18 -68.21, -57.99 129.72 0.93 54

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 7/20/2019
SNOs_Map_NPP_TERRA_20190721.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 07/20/2019 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service