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: 10/15/2017
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 10/17/2017 18:22:57 -68.47, 82.89 102.11 10/17/2017 18:24:06 -68.49, 82.85 102.09 3.00 69
2 10/17/2017 19:13:42 68.39,-109.70 77.83 10/17/2017 19:13:33 68.37,-109.64 77.81 2.95 9
3 10/17/2017 20:04:19 -68.04, 58.06 102.50 10/17/2017 20:03:06 -68.10, 57.66 102.46 17.70 73
4 10/20/2017 10:39:51 -68.45,-161.33 101.16 10/20/2017 10:40:33 -68.44,-161.33 101.18 1.84 42
5 10/20/2017 11:30:35 68.32, 6.15 78.73 10/20/2017 11:30:00 68.32, 6.18 78.72 1.21 35
6 10/23/2017 02:06:13 69.01, 146.38 80.33 10/23/2017 02:07:23 68.93, 147.53 80.27 46.78 70
7 10/23/2017 02:56:45 -68.39, -45.48 100.27 10/23/2017 02:57:01 -68.38, -45.52 100.29 2.11 16
8 10/23/2017 03:47:29 68.26, 121.99 79.62 10/23/2017 03:46:28 68.26, 121.99 79.61 0.30 61
9 10/25/2017 18:22:58 68.46, -97.13 80.72 10/25/2017 18:23:58 68.47, -97.16 80.73 1.02 60
10 10/25/2017 19:13:40 -68.38, 70.29 99.35 10/25/2017 19:13:28 -68.36, 70.35 99.37 3.03 12
11 10/25/2017 20:04:14 67.71,-121.56 80.01 10/25/2017 20:03:04 67.74,-122.73 80.01 49.39 70
12 10/28/2017 10:39:53 68.46, 18.64 81.63 10/28/2017 10:40:25 68.45, 18.71 81.61 3.28 32
13 10/28/2017 11:30:33 -68.27,-173.80 98.56 10/28/2017 11:29:56 -68.29,-173.85 98.54 3.06 37

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 10/15/2017
SNOs_Map_NPP_TERRA_20171013.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 10/15/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service