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: 12/18/2011
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 12/20/2011 18:22:30 -68.56, 82.80 88.12 12/20/2011 18:23:42 -68.53, 82.88 88.16 5.03 72
2 12/20/2011 19:13:13 68.37,-109.64 91.68 12/20/2011 19:13:10 68.37,-109.67 91.68 1.51 3
3 12/20/2011 20:03:53 -68.20, 57.90 88.49 12/20/2011 20:02:41 -68.20, 57.76 88.49 5.63 72
4 12/23/2011 10:39:19 -68.50,-161.34 88.18 12/23/2011 10:40:12 -68.49,-161.30 88.20 2.44 53
5 12/23/2011 11:30:02 68.31, 6.22 91.63 12/23/2011 11:29:40 68.32, 6.15 91.64 3.17 22
6 12/23/2011 12:20:31 -67.55, 174.48 89.15 12/23/2011 12:19:21 -67.60, 172.94 89.08 65.64 70
7 12/26/2011 02:56:09 -68.44, -45.48 88.29 12/26/2011 02:56:43 -68.43, -45.49 88.31 1.70 34
8 12/26/2011 03:46:53 68.30, 122.00 91.57 12/26/2011 03:46:10 68.31, 122.02 91.58 1.14 43
9 12/28/2011 18:22:26 68.93, -97.67 92.11 12/28/2011 18:23:37 68.83, -96.74 91.99 38.91 71
10 12/28/2011 19:12:59 -68.38, 70.38 88.46 12/28/2011 19:13:13 -68.40, 70.35 88.44 2.31 14
11 12/28/2011 20:03:43 68.24,-122.14 91.40 12/28/2011 20:02:41 68.23,-122.21 91.39 3.42 62
12 12/31/2011 10:39:09 68.50, 18.68 91.50 12/31/2011 10:40:12 68.51, 18.73 91.51 2.06 63
13 12/31/2011 11:29:50 -68.37,-173.84 88.63 12/31/2011 11:29:43 -68.35,-173.82 88.65 2.53 7
14 12/31/2011 12:20:27 67.86, -5.88 90.85 12/31/2011 12:19:16 67.89, -6.72 90.90 35.09 71

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 12/18/2011
SNOs_Map_NPP_TERRA_20111218.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 12/18/2011 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service