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: 8/17/2017
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 08/20/2017 02:56:17 -68.39, -45.44 124.12 08/20/2017 02:57:18 -68.39, -45.50 124.12 2.58 61
2 08/20/2017 03:47:01 68.27, 122.02 55.78 08/20/2017 03:46:45 68.29, 122.02 55.79 1.65 16
3 08/20/2017 04:37:34 -67.69, -69.93 124.80 08/20/2017 04:36:23 -67.73, -71.00 124.75 45.06 71
4 08/22/2017 19:13:14 -68.37, 70.36 123.25 08/22/2017 19:13:48 -68.37, 70.34 123.25 0.52 34
5 08/22/2017 20:03:58 68.25,-122.19 56.65 08/22/2017 20:03:15 68.25,-122.14 56.65 1.88 43
6 08/25/2017 10:39:34 68.71, 18.35 58.01 08/25/2017 10:40:45 68.60, 18.87 57.89 24.92 71
7 08/25/2017 11:30:11 -68.34,-173.85 122.36 08/25/2017 11:30:18 -68.33,-173.83 122.38 2.32 7
8 08/25/2017 12:20:54 68.18, -6.33 57.49 08/25/2017 12:19:46 68.16, -6.38 57.47 3.19 68
9 08/28/2017 02:56:25 68.43, 134.49 58.66 08/28/2017 02:57:16 68.44, 134.55 58.66 2.91 51
10 08/28/2017 03:47:06 -68.27, -57.99 121.50 08/28/2017 03:46:47 -68.28, -58.01 121.49 0.81 19
11 08/28/2017 04:37:35 67.35, 110.45 57.59 08/28/2017 04:36:27 67.43, 108.67 57.69 76.88 68
12 08/30/2017 19:13:21 68.36,-109.66 59.54 08/30/2017 19:13:46 68.38,-109.64 59.55 2.15 25
13 08/30/2017 20:04:02 -68.20, 57.86 120.62 08/30/2017 20:03:17 -68.22, 57.80 120.60 3.18 45

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 8/17/2017
SNOs_Map_NPP_TERRA_20170818.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 08/17/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service