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: 4/15/2019
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 04/17/2019 11:29:36 68.30, 6.24 57.72 04/17/2019 11:30:05 68.28, 6.21 57.70 1.91 29
2 04/17/2019 12:20:17 -68.16, 173.74 122.44 04/17/2019 12:19:35 -68.17, 173.71 122.42 2.13 42
3 04/20/2019 02:55:54 -68.68, -45.81 122.81 04/20/2019 02:57:05 -68.58, -45.20 122.92 26.90 71
4 04/20/2019 03:46:32 68.24, 122.08 56.73 04/20/2019 03:46:36 68.25, 122.04 56.74 2.23 4
5 04/20/2019 04:37:14 -68.15, -70.49 123.38 04/20/2019 04:36:06 -68.14, -70.45 123.38 1.60 68
6 04/22/2019 19:12:44 -68.35, 70.38 124.06 04/22/2019 19:13:39 -68.35, 70.39 124.06 0.24 55
7 04/22/2019 20:03:28 68.24,-122.16 55.82 04/22/2019 20:03:06 68.24,-122.10 55.82 2.46 22
8 04/22/2019 20:53:57 -67.44, 46.14 125.00 04/22/2019 20:52:47 -67.52, 44.70 124.91 61.95 70
9 04/25/2019 11:29:40 -68.30,-173.78 125.00 04/25/2019 11:30:11 -68.31,-173.79 124.99 1.72 31
10 04/25/2019 12:20:24 68.18, -6.32 54.87 04/25/2019 12:19:38 68.20, -6.28 54.89 2.44 46
11 04/28/2019 02:55:59 68.61, 134.26 54.47 04/28/2019 02:57:10 68.56, 134.74 54.41 20.50 71
12 04/28/2019 03:46:37 -68.29, -58.01 125.86 04/28/2019 03:46:43 -68.29, -57.95 125.87 2.57 6
13 04/28/2019 04:37:20 68.13, 109.51 53.96 04/28/2019 04:36:11 68.12, 109.49 53.95 1.41 69

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/15/2019
SNOs_Map_NPP_TERRA_20190416.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/15/2019 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service