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: 12/22/2017
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 12/23/2017 10:39:33 -68.39,-161.29 88.31 12/23/2017 10:40:27 -68.39,-161.25 88.31 1.77 54
2 12/23/2017 11:30:16 68.22, 6.24 91.53 12/23/2017 11:29:55 68.22, 6.20 91.53 1.53 21
3 12/23/2017 12:20:45 -67.43, 174.53 89.28 12/23/2017 12:19:36 -67.50, 173.00 89.19 65.73 69
4 12/26/2017 02:56:26 -68.34, -45.45 88.42 12/26/2017 02:56:58 -68.31, -45.46 88.45 2.84 32
5 12/26/2017 03:47:10 68.22, 122.00 91.47 12/26/2017 03:46:25 68.20, 122.06 91.45 3.41 45
6 12/28/2017 18:22:42 68.71, -97.48 91.85 12/28/2017 18:23:53 68.61, -96.84 91.74 27.97 71
7 12/28/2017 19:13:18 -68.29, 70.38 88.58 12/28/2017 19:13:27 -68.29, 70.39 88.59 0.59 9
8 12/28/2017 20:04:02 68.18,-122.17 91.31 12/28/2017 20:02:54 68.17,-122.10 91.30 2.86 68
9 12/31/2017 10:39:29 68.34, 18.77 91.31 12/31/2017 10:40:27 68.35, 18.72 91.31 2.35 58
10 12/31/2017 11:30:11 -68.25,-173.79 88.80 12/31/2017 11:29:57 -68.25,-173.77 88.80 0.98 14
11 12/31/2017 12:20:44 67.54, -5.60 90.49 12/31/2017 12:19:34 67.57, -6.91 90.54 55.54 70
12 01/03/2018 02:56:22 68.30, 134.60 91.04 01/03/2018 02:56:57 68.31, 134.55 91.04 2.12 35
13 01/03/2018 03:47:04 -68.20, -57.96 89.07 01/03/2018 03:46:27 -68.21, -57.94 89.07 1.13 37

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 12/22/2017
SNOs_Map_NPP_TERRA_20171222.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 12/22/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service