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: 10/19/2017
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 10/20/2017 10:39:51 -68.46,-161.33 101.16 10/20/2017 10:40:34 -68.44,-161.33 101.18 2.17 43
2 10/20/2017 11:30:35 68.32, 6.16 78.72 10/20/2017 11:30:01 68.32, 6.18 78.72 1.00 34
3 10/23/2017 02:06:14 69.05, 146.31 80.38 10/23/2017 02:07:24 68.95, 147.56 80.29 51.10 70
4 10/23/2017 02:56:45 -68.39, -45.48 100.27 10/23/2017 02:57:02 -68.40, -45.49 100.26 0.96 17
5 10/23/2017 03:47:29 68.26, 122.00 79.61 10/23/2017 03:46:29 68.28, 122.02 79.63 2.92 60
6 10/25/2017 18:22:58 68.46, -97.13 80.72 10/25/2017 18:24:00 68.46, -97.16 80.72 1.39 62
7 10/25/2017 19:13:40 -68.38, 70.29 99.35 10/25/2017 19:13:30 -68.36, 70.35 99.37 3.30 10
8 10/25/2017 20:04:15 67.77,-121.62 80.06 10/25/2017 20:03:04 67.85,-122.61 80.12 42.41 71
9 10/28/2017 10:39:51 68.41, 18.71 81.57 10/28/2017 10:40:27 68.43, 18.68 81.59 2.60 36
10 10/28/2017 11:30:33 -68.32,-173.86 98.50 10/28/2017 11:29:57 -68.33,-173.81 98.50 2.43 36
11 10/31/2017 02:06:11 -69.01, -33.64 96.97 10/31/2017 02:07:21 -68.90, -32.49 97.06 47.16 70
12 10/31/2017 02:56:46 68.41, 134.48 82.45 10/31/2017 02:56:55 68.39, 134.52 82.43 2.64 9
13 10/31/2017 03:47:27 -68.27, -58.03 97.68 10/31/2017 03:46:26 -68.24, -58.03 97.72 3.53 61

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 10/19/2017
SNOs_Map_NPP_TERRA_20171019.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 10/19/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service