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: 12/19/2018
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 12/21/2018 02:56:35 68.34, 134.52 91.67 12/21/2018 02:57:00 68.32, 134.53 91.64 2.89 25
2 12/21/2018 03:47:16 -68.20, -57.98 88.48 12/21/2018 03:46:30 -68.21, -57.96 88.47 1.43 46
3 12/23/2018 18:22:48 -68.63, 82.60 88.06 12/23/2018 18:23:59 -68.57, 83.07 88.13 20.34 71
4 12/23/2018 19:13:28 68.30,-109.66 91.62 12/23/2018 19:13:29 68.29,-109.63 91.60 2.41 1
5 12/23/2018 20:04:09 -68.16, 57.85 88.54 12/23/2018 20:02:59 -68.18, 57.88 88.51 3.32 70
6 12/26/2018 10:39:38 -68.38,-161.29 88.38 12/26/2018 10:40:32 -68.37,-161.29 88.39 0.73 54
7 12/26/2018 11:30:22 68.27, 6.16 91.51 12/26/2018 11:29:59 68.25, 6.21 91.50 2.67 23
8 12/26/2018 12:20:50 -67.42, 174.53 89.35 12/26/2018 12:19:41 -67.48, 172.96 89.27 67.38 69
9 12/29/2018 02:56:32 -68.34, -45.47 88.54 12/29/2018 02:57:02 -68.34, -45.45 88.54 0.93 30
10 12/29/2018 03:47:15 68.18, 122.04 91.30 12/29/2018 03:46:30 68.16, 121.99 91.29 2.75 45
11 12/31/2018 18:22:48 68.62, -97.39 91.58 12/31/2018 18:23:59 68.57, -96.92 91.52 19.55 71
12 12/31/2018 19:13:26 -68.30, 70.35 88.75 12/31/2018 19:13:32 -68.31, 70.39 88.75 1.90 6
13 12/31/2018 20:04:09 68.14,-122.14 91.09 12/31/2018 20:03:00 68.13,-122.18 91.08 2.04 69

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 12/19/2018
SNOs_Map_NPP_TERRA_20181220.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 12/19/2018 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service