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: 12/21/2017
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 12/23/2017 10:39:33 -68.37,-161.27 88.32 12/23/2017 10:40:28 -68.34,-161.29 88.35 3.16 55
2 12/23/2017 11:30:17 68.26, 6.19 91.57 12/23/2017 11:29:55 68.24, 6.22 91.55 2.61 22
3 12/23/2017 12:20:46 -67.46, 174.49 89.24 12/23/2017 12:19:36 -67.51, 173.02 89.18 62.69 70
4 12/26/2017 02:56:25 -68.32, -45.43 88.43 12/26/2017 02:56:57 -68.33, -45.43 88.43 0.75 32
5 12/26/2017 03:47:09 68.21, 122.02 91.46 12/26/2017 03:46:24 68.22, 122.08 91.46 2.59 45
6 12/28/2017 18:22:42 68.70, -97.46 91.84 12/28/2017 18:23:54 68.58, -96.88 91.71 26.84 72
7 12/28/2017 19:13:18 -68.28, 70.40 88.60 12/28/2017 19:13:28 -68.25, 70.35 88.63 3.39 10
8 12/28/2017 20:04:02 68.17,-122.15 91.29 12/28/2017 20:02:55 68.14,-122.14 91.27 3.03 67
9 12/31/2017 10:39:30 68.39, 18.72 91.35 12/31/2017 10:40:27 68.38, 18.76 91.34 1.60 57
10 12/31/2017 11:30:11 -68.23,-173.77 88.82 12/31/2017 11:29:58 -68.22,-173.80 88.83 1.63 13
11 12/31/2017 12:20:44 67.53, -5.59 90.47 12/31/2017 12:19:34 67.60, -6.87 90.56 55.26 70
12 01/03/2018 02:56:23 68.35, 134.54 91.08 01/03/2018 02:56:57 68.35, 134.59 91.08 2.10 34
13 01/03/2018 03:47:04 -68.19, -57.94 89.09 01/03/2018 03:46:28 -68.19, -57.96 89.09 0.80 36

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 12/21/2017
SNOs_Map_NPP_TERRA_20171221.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 12/21/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service