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: 8/13/2017
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 08/14/2017 19:13:08 68.34,-109.59 54.14 08/14/2017 19:13:45 68.35,-109.65 54.15 2.64 37
2 08/14/2017 20:03:50 -68.25, 57.85 125.95 08/14/2017 20:03:15 -68.24, 57.85 125.95 0.38 35
3 08/17/2017 10:39:31 -68.97,-161.97 124.39 08/17/2017 10:40:41 -68.85,-160.80 124.53 48.42 70
4 08/17/2017 11:30:05 68.32, 6.20 54.96 08/17/2017 11:30:16 68.30, 6.16 54.94 2.72 11
5 08/17/2017 12:20:47 -68.22, 173.64 125.14 08/17/2017 12:19:46 -68.19, 173.67 125.16 3.24 61
6 08/20/2017 02:56:18 -68.41, -45.46 124.10 08/20/2017 02:57:19 -68.42, -45.47 124.10 0.68 61
7 08/20/2017 03:47:02 68.30, 121.99 55.81 08/20/2017 03:46:46 68.30, 122.04 55.81 2.05 16
8 08/20/2017 04:37:34 -67.71, -69.96 124.78 08/20/2017 04:36:23 -67.75, -70.97 124.72 42.87 71
9 08/22/2017 19:13:14 -68.39, 70.33 123.22 08/22/2017 19:13:49 -68.37, 70.34 123.25 2.62 35
10 08/22/2017 20:03:57 68.23,-122.16 56.63 08/22/2017 20:03:16 68.25,-122.15 56.65 2.68 41
11 08/25/2017 10:39:35 68.80, 18.23 58.10 08/25/2017 10:40:45 68.70, 18.99 57.98 32.75 70
12 08/25/2017 11:30:10 -68.32,-173.82 122.38 08/25/2017 11:30:20 -68.32,-173.84 122.38 0.82 10
13 08/25/2017 12:20:54 68.21, -6.37 57.53 08/25/2017 12:19:47 68.20, -6.33 57.52 1.95 67

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 8/13/2017
SNOs_Map_NPP_TERRA_20170814.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 08/13/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service