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: 9/22/2017
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 09/23/2017 18:23:02 68.87, -97.69 69.12 09/23/2017 18:24:12 68.75, -96.83 69.01 36.80 70
2 09/23/2017 19:13:36 -68.36, 70.30 111.38 09/23/2017 19:13:47 -68.37, 70.33 111.37 1.18 11
3 09/23/2017 20:04:20 68.23,-122.22 68.51 09/23/2017 20:03:14 68.25,-122.16 68.53 3.47 66
4 09/26/2017 10:39:50 68.45, 18.63 69.75 09/26/2017 10:40:45 68.44, 18.66 69.73 2.12 55
5 09/26/2017 11:30:31 -68.32,-173.87 110.37 09/26/2017 11:30:15 -68.33,-173.83 110.36 2.21 16
6 09/26/2017 12:21:03 67.54, -5.59 68.87 09/26/2017 12:19:53 67.60, -7.04 68.91 61.90 70
7 09/29/2017 02:56:46 68.41, 134.45 70.75 09/29/2017 02:57:14 68.39, 134.49 70.73 2.44 28
8 09/29/2017 03:47:27 -68.28, -58.05 109.37 09/29/2017 03:46:44 -68.29, -58.00 109.36 2.87 43
9 10/01/2017 18:23:02 -68.72, 82.51 107.92 10/01/2017 18:24:13 -68.64, 83.02 107.99 22.32 71
10 10/01/2017 19:13:42 68.38,-109.73 71.76 10/01/2017 19:13:43 68.35,-109.68 71.73 3.25 1
11 10/01/2017 20:04:22 -68.19, 57.83 108.42 10/01/2017 20:03:14 -68.20, 57.76 108.42 3.15 68
12 10/04/2017 10:39:53 -68.41,-161.32 107.19 10/04/2017 10:40:45 -68.43,-161.36 107.17 2.34 52
13 10/04/2017 11:30:37 68.29, 6.15 72.70 10/04/2017 11:30:12 68.30, 6.14 72.72 2.14 25
14 10/04/2017 12:21:04 -67.39, 174.58 108.17 10/04/2017 12:19:56 -67.43, 172.76 108.16 77.67 68

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 9/22/2017
SNOs_Map_NPP_TERRA_20170922.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 09/22/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service