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: 10/18/2017
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 10/20/2017 10:39:51 -68.43,-161.30 101.18 10/20/2017 10:40:34 -68.45,-161.31 101.16 2.86 43
2 10/20/2017 11:30:35 68.29, 6.19 78.70 10/20/2017 11:30:02 68.28, 6.13 78.68 2.59 33
3 10/23/2017 02:06:14 69.08, 146.27 80.41 10/23/2017 02:07:23 68.95, 147.56 80.30 53.44 69
4 10/23/2017 02:56:45 -68.42, -45.52 100.24 10/23/2017 02:57:01 -68.40, -45.48 100.26 2.18 16
5 10/23/2017 03:47:29 68.28, 121.96 79.64 10/23/2017 03:46:28 68.28, 122.02 79.64 2.31 61
6 10/25/2017 18:22:58 68.49, -97.16 80.75 10/25/2017 18:23:58 68.50, -97.11 80.76 2.42 60
7 10/25/2017 19:13:39 -68.36, 70.33 99.37 10/25/2017 19:13:29 -68.35, 70.33 99.39 1.34 10
8 10/25/2017 20:04:14 67.74,-121.59 80.04 10/25/2017 20:03:04 67.78,-122.69 80.05 46.44 70
9 10/28/2017 10:39:52 68.44, 18.67 81.60 10/28/2017 10:40:26 68.43, 18.69 81.60 0.80 34
10 10/28/2017 11:30:33 -68.30,-173.83 98.53 10/28/2017 11:29:57 -68.28,-173.86 98.55 2.35 36
11 10/31/2017 02:06:10 -68.93, -33.53 97.04 10/31/2017 02:07:21 -68.82, -32.59 97.14 39.70 71
12 10/31/2017 02:56:46 68.38, 134.51 82.43 10/31/2017 02:56:54 68.36, 134.49 82.40 2.86 8
13 10/31/2017 03:47:27 -68.25, -58.00 97.70 10/31/2017 03:46:24 -68.27, -57.99 97.69 2.25 63

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 10/18/2017
SNOs_Map_NPP_TERRA_20171018.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 10/18/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service