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: 5/16/2017
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 05/18/2017 19:12:51 -68.31, 70.45 131.53 05/18/2017 19:13:26 -68.33, 70.41 131.51 2.78 35
2 05/18/2017 20:03:35 68.17,-122.07 48.33 05/18/2017 20:02:54 68.17,-122.13 48.33 2.57 41
3 05/21/2017 10:39:11 68.74, 18.33 48.37 05/21/2017 10:40:22 68.63, 19.03 48.25 30.83 71
4 05/21/2017 11:29:46 -68.29,-173.76 132.10 05/21/2017 11:29:56 -68.30,-173.75 132.10 1.00 10
5 05/21/2017 12:20:30 68.16, -6.28 47.76 05/21/2017 12:19:24 68.13, -6.30 47.74 2.71 66
6 05/24/2017 02:55:58 68.35, 134.61 47.46 05/24/2017 02:56:55 68.38, 134.60 47.48 3.14 57
7 05/24/2017 03:46:39 -68.22, -57.90 132.69 05/24/2017 03:46:26 -68.22, -57.96 132.69 2.76 13
8 05/24/2017 04:37:12 67.50, 110.31 46.58 05/24/2017 04:36:03 67.55, 108.90 46.64 60.00 69
9 05/26/2017 19:12:53 68.34,-109.60 46.97 05/26/2017 19:13:25 68.36,-109.55 46.99 3.08 32
10 05/26/2017 20:03:34 -68.21, 57.89 133.17 05/26/2017 20:02:56 -68.20, 57.89 133.18 0.63 38
11 05/29/2017 10:39:12 -68.89,-161.86 132.90 05/29/2017 10:40:22 -68.80,-160.78 133.00 44.56 70
12 05/29/2017 11:29:47 68.28, 6.25 46.48 05/29/2017 11:29:56 68.30, 6.25 46.50 1.62 9
13 05/29/2017 12:20:28 -68.15, 173.74 133.66 05/29/2017 12:19:27 -68.14, 173.70 133.67 2.07 61

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 5/16/2017
SNOs_Map_NPP_TERRA_20170517.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 05/16/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service