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: 7/27/2017
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 07/29/2017 19:12:55 68.37,-109.59 49.73 07/29/2017 19:13:39 68.39,-109.58 49.75 2.09 44
2 07/29/2017 20:03:36 -68.22, 57.92 130.41 07/29/2017 20:03:10 -68.23, 57.86 130.40 2.55 26
3 08/01/2017 10:39:22 -69.25,-162.32 128.71 08/01/2017 10:40:30 -69.13,-160.42 128.87 76.22 68
4 08/01/2017 11:29:51 68.33, 6.22 50.36 08/01/2017 11:30:09 68.35, 6.25 50.37 2.00 18
5 08/01/2017 12:20:32 -68.18, 173.73 129.79 08/01/2017 12:19:40 -68.19, 173.69 129.78 1.97 52
6 08/04/2017 02:56:04 -68.41, -45.43 128.88 08/04/2017 02:57:13 -68.43, -45.43 128.87 1.55 69
7 08/04/2017 03:46:48 68.30, 122.03 51.02 08/04/2017 03:46:40 68.31, 122.07 51.03 2.05 8
8 08/04/2017 04:37:26 -67.99, -70.26 129.30 08/04/2017 04:36:13 -68.04, -70.61 129.23 16.01 73
9 08/06/2017 19:13:01 -68.38, 70.38 128.18 08/06/2017 19:13:44 -68.39, 70.39 128.18 0.75 43
10 08/06/2017 20:03:45 68.27,-122.17 51.72 08/06/2017 20:03:11 68.27,-122.11 51.71 2.86 34
11 08/09/2017 10:39:27 69.05, 17.93 53.26 08/09/2017 10:40:36 68.94, 19.32 53.11 56.56 69
12 08/09/2017 11:29:58 -68.35,-173.82 127.45 08/09/2017 11:30:15 -68.34,-173.79 127.47 1.63 17
13 08/09/2017 12:20:41 68.19, -6.31 52.40 08/09/2017 12:19:42 68.22, -6.29 52.43 3.11 59

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 7/27/2017
SNOs_Map_NPP_TERRA_20170728.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 07/27/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service