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: 6/17/2017
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 06/19/2017 19:12:50 -68.34, 70.43 135.19 06/19/2017 19:13:27 -68.36, 70.44 135.18 1.98 37
2 06/19/2017 20:03:34 68.20,-122.08 44.67 06/19/2017 20:02:55 68.19,-122.12 44.65 2.42 39
3 06/22/2017 10:39:10 68.85, 18.21 45.33 06/22/2017 10:40:20 68.74, 19.15 45.20 39.65 70
4 06/22/2017 11:29:43 -68.30,-173.73 135.24 06/22/2017 11:29:56 -68.30,-173.75 135.23 1.12 13
5 06/22/2017 12:20:27 68.16, -6.25 44.63 06/22/2017 12:19:23 68.18, -6.25 44.65 2.80 64
6 06/25/2017 02:55:56 68.38, 134.61 44.90 06/25/2017 02:56:55 68.40, 134.61 44.91 1.76 59
7 06/25/2017 03:46:37 -68.25, -57.90 135.23 06/25/2017 03:46:26 -68.25, -57.94 135.24 1.63 11
8 06/25/2017 04:37:11 67.58, 110.24 44.09 06/25/2017 04:36:01 67.67, 109.04 44.21 51.91 70
9 06/27/2017 19:12:50 68.35,-109.57 44.97 06/27/2017 19:13:25 68.34,-109.59 44.95 1.35 35
10 06/27/2017 20:03:31 -68.21, 57.92 135.17 06/27/2017 20:02:55 -68.24, 57.93 135.14 3.34 36
11 06/30/2017 10:39:10 -68.97,-161.93 134.25 06/30/2017 10:40:20 -68.84,-160.73 134.41 50.14 70
12 06/30/2017 11:29:44 68.31, 6.25 45.08 06/30/2017 11:29:54 68.33, 6.28 45.09 2.12 10
13 06/30/2017 12:20:25 -68.17, 173.75 135.06 06/30/2017 12:19:25 -68.18, 173.74 135.05 0.64 60

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 6/17/2017
SNOs_Map_NPP_TERRA_20170618.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 06/17/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service