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: 7/20/2017
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 07/21/2017 19:12:46 -68.39, 70.41 132.00 07/21/2017 19:13:36 -68.38, 70.42 132.02 1.77 50
2 07/21/2017 20:03:30 68.27,-122.12 47.88 07/21/2017 20:03:03 68.26,-122.07 47.88 2.16 27
3 07/21/2017 20:53:56 -67.32, 46.37 133.09 07/21/2017 20:52:48 -67.32, 44.49 133.03 80.66 68
4 07/24/2017 10:39:17 69.30, 17.63 49.48 07/24/2017 10:40:24 69.17, 19.66 49.31 81.30 67
5 07/24/2017 11:29:43 -68.35,-173.77 131.50 07/24/2017 11:30:07 -68.35,-173.73 131.50 1.45 24
6 07/24/2017 12:20:26 68.17, -6.24 48.33 07/24/2017 12:19:35 68.18, -6.29 48.34 2.56 51
7 07/27/2017 02:55:58 68.40, 134.61 49.14 07/27/2017 02:57:08 68.42, 134.59 49.15 2.28 70
8 07/27/2017 03:46:40 -68.30, -57.95 130.96 07/27/2017 03:46:38 -68.32, -57.90 130.94 2.87 2
9 07/27/2017 04:37:20 67.97, 109.78 48.71 07/27/2017 04:36:08 68.03, 109.41 48.79 17.09 72
10 07/29/2017 19:12:54 68.36,-109.58 49.73 07/29/2017 19:13:38 68.38,-109.58 49.74 2.33 44
11 07/29/2017 20:03:36 -68.26, 57.87 130.37 07/29/2017 20:03:09 -68.23, 57.87 130.40 3.35 27
12 08/01/2017 10:39:22 -69.23,-162.30 128.73 08/01/2017 10:40:30 -69.13,-160.42 128.88 74.94 68
13 08/01/2017 11:29:51 68.32, 6.23 50.35 08/01/2017 11:30:09 68.34, 6.24 50.36 1.97 18
14 08/01/2017 12:20:33 -68.22, 173.69 129.76 08/01/2017 12:19:40 -68.19, 173.69 129.78 3.14 53

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 7/20/2017
SNOs_Map_NPP_TERRA_20170721.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 07/20/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service