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 -68.36,-161.27 132.00 07/22/2019 10:40:20 -68.38,-161.30 131.99 1.87 47
2 07/22/2019 11:30:17 68.23, 6.21 47.87 07/22/2019 11:29:48 68.21, 6.14 47.86 3.32 29
3 07/22/2019 12:20:41 -67.18, 174.80 133.19 07/22/2019 12:19:34 -67.21, 172.64 133.11 93.37 67
4 07/25/2019 02:06:01 69.20, 146.05 49.42 07/25/2019 02:07:09 69.05, 147.79 49.22 70.84 68
5 07/25/2019 02:56:28 -68.32, -45.45 131.49 07/25/2019 02:56:50 -68.34, -45.47 131.48 2.14 22
6 07/25/2019 03:47:12 68.19, 122.03 48.38 07/25/2019 03:46:18 68.17, 121.97 48.37 3.41 54
7 07/27/2019 18:22:41 68.42, -97.12 49.19 07/27/2019 18:23:49 68.40, -97.15 49.17 2.06 68
8 07/27/2019 19:13:22 -68.28, 70.38 130.94 07/27/2019 19:13:19 -68.30, 70.36 130.92 2.36 3
9 07/27/2019 20:04:02 67.94,-121.88 48.72 07/27/2019 20:02:50 67.96,-122.40 48.76 21.73 72
10 07/30/2019 10:39:36 68.38, 18.70 49.79 07/30/2019 10:40:19 68.36, 18.68 49.76 2.01 43
11 07/30/2019 11:30:17 -68.24,-173.80 130.35 07/30/2019 11:29:49 -68.27,-173.81 130.33 2.65 28
12 08/02/2019 02:06:02 -69.27, -34.04 128.64 08/02/2019 02:07:10 -69.12, -32.15 128.85 76.44 68
13 08/02/2019 02:56:31 68.35, 134.51 50.42 08/02/2019 02:56:49 68.33, 134.51 50.39 2.14 18
14 08/02/2019 03:47:12 -68.21, -57.99 129.73 08/02/2019 03:46:19 -68.23, -57.97 129.70 3.10 53

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 7/20/2019
SNOs_Map_NPP_TERRA_20190720.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