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: 12/18/2017
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 12/20/2017 18:22:44 -68.63, 82.63 88.06 12/20/2017 18:23:56 -68.52, 83.05 88.16 20.46 72
2 12/20/2017 19:13:24 68.30,-109.64 91.62 12/20/2017 19:13:25 68.31,-109.57 91.62 2.88 1
3 12/20/2017 20:04:05 -68.15, 57.87 88.54 12/20/2017 20:02:56 -68.14, 57.86 88.55 0.92 69
4 12/23/2017 10:39:32 -68.36,-161.25 88.33 12/23/2017 10:40:29 -68.38,-161.26 88.32 2.32 57
5 12/23/2017 11:30:16 68.25, 6.20 91.56 12/23/2017 11:29:56 68.27, 6.26 91.58 3.56 20
6 12/23/2017 12:20:46 -67.51, 174.44 89.20 12/23/2017 12:19:36 -67.61, 173.12 89.09 57.09 70
7 12/26/2017 02:56:25 -68.31, -45.41 88.45 12/26/2017 02:57:02 -68.33, -45.45 88.43 2.74 37
8 12/26/2017 03:47:09 68.20, 122.04 91.45 12/26/2017 03:46:29 68.22, 122.06 91.47 2.55 40
9 12/28/2017 18:22:48 69.01, -97.88 92.15 12/28/2017 18:23:57 68.87, -96.55 91.99 55.33 69
10 12/28/2017 19:13:19 -68.31, 70.35 88.56 12/28/2017 19:13:35 -68.32, 70.40 88.56 2.21 16
11 12/28/2017 20:04:02 68.15,-122.13 91.28 12/28/2017 20:03:03 68.15,-122.15 91.28 0.78 59
12 12/31/2017 10:39:30 68.37, 18.74 91.33 12/31/2017 10:40:39 68.39, 18.72 91.35 2.24 69
13 12/31/2017 11:30:12 -68.27,-173.82 88.78 12/31/2017 11:30:09 -68.29,-173.76 88.76 3.29 3
14 12/31/2017 12:20:52 67.95, -6.10 90.90 12/31/2017 12:19:39 68.01, -6.45 90.97 16.30 73

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 12/18/2017
SNOs_Map_NPP_TERRA_20171219.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 12/18/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service