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: 10/21/2017
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 10/23/2017 02:06:15 69.14, 146.20 80.46 10/23/2017 02:07:24 69.00, 147.64 80.35 59.39 69
2 10/23/2017 02:56:45 -68.42, -45.52 100.24 10/23/2017 02:57:03 -68.40, -45.47 100.26 3.16 18
3 10/23/2017 03:47:28 68.23, 122.03 79.59 10/23/2017 03:46:31 68.23, 121.96 79.58 2.79 57
4 10/25/2017 18:22:58 68.49, -97.16 80.75 10/25/2017 18:24:03 68.47, -97.14 80.73 2.14 65
5 10/25/2017 19:13:39 -68.36, 70.32 99.37 10/25/2017 19:13:33 -68.38, 70.38 99.36 2.91 6
6 10/25/2017 20:04:17 67.90,-121.79 80.20 10/25/2017 20:03:05 67.98,-122.45 80.25 28.86 72
7 10/28/2017 10:39:52 68.43, 18.67 81.60 10/28/2017 10:40:34 68.44, 18.69 81.61 0.99 42
8 10/28/2017 11:30:33 -68.30,-173.83 98.52 10/28/2017 11:30:05 -68.29,-173.85 98.54 1.26 28
9 10/31/2017 02:06:18 -69.36, -34.12 96.62 10/31/2017 02:07:26 -69.25, -32.07 96.70 81.68 68
10 10/31/2017 02:56:46 68.38, 134.51 82.43 10/31/2017 02:57:06 68.40, 134.52 82.45 2.51 20
11 10/31/2017 03:47:27 -68.24, -57.99 97.70 10/31/2017 03:46:37 -68.26, -58.03 97.69 2.03 50
12 11/02/2017 18:22:58 -68.61, 82.67 96.51 11/02/2017 18:24:10 -68.54, 82.90 96.57 12.27 72
13 11/02/2017 19:13:40 68.38,-109.72 83.28 11/02/2017 19:13:38 68.36,-109.67 83.26 3.29 2
14 11/02/2017 20:04:21 -68.24, 57.77 96.85 11/02/2017 20:03:09 -68.22, 57.79 96.88 2.88 72

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 10/21/2017
SNOs_Map_NPP_TERRA_20171021.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 10/21/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service