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: 9/19/2017
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 09/21/2017 02:56:40 -68.41, -45.53 112.37 09/21/2017 02:57:18 -68.40, -45.52 112.38 1.98 38
2 09/21/2017 03:47:24 68.28, 121.95 67.52 09/21/2017 03:46:45 68.29, 122.00 67.52 2.14 39
3 09/23/2017 18:23:02 68.88, -97.70 69.13 09/23/2017 18:24:12 68.76, -96.82 69.02 37.61 70
4 09/23/2017 19:13:36 -68.37, 70.29 111.37 09/23/2017 19:13:47 -68.38, 70.34 111.36 1.91 11
5 09/23/2017 20:04:20 68.24,-122.23 68.52 09/23/2017 20:03:15 68.21,-122.22 68.48 3.41 65
6 09/26/2017 10:39:51 68.46, 18.62 69.76 09/26/2017 10:40:46 68.46, 18.68 69.76 2.51 55
7 09/26/2017 11:30:32 -68.33,-173.88 110.37 09/26/2017 11:30:17 -68.30,-173.88 110.40 3.03 15
8 09/26/2017 12:21:04 67.55, -5.61 68.88 09/26/2017 12:19:55 67.57, -7.08 68.88 62.72 69
9 09/29/2017 02:56:45 68.37, 134.51 70.71 09/29/2017 02:57:15 68.38, 134.47 70.72 2.21 30
10 09/29/2017 03:47:27 -68.29, -58.06 109.36 09/29/2017 03:46:45 -68.28, -58.02 109.38 1.85 42
11 10/01/2017 18:23:02 -68.73, 82.50 107.91 10/01/2017 18:24:14 -68.64, 83.02 107.99 22.94 72
12 10/01/2017 19:13:41 68.33,-109.67 71.71 10/01/2017 19:13:44 68.36,-109.68 71.74 2.95 3
13 10/01/2017 20:04:22 -68.19, 57.82 108.42 10/01/2017 20:03:15 -68.20, 57.77 108.41 2.55 67

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 9/19/2017
SNOs_Map_NPP_TERRA_20170920.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 09/19/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service