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: 10/16/2017
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 10/17/2017 18:22:57 -68.49, 82.85 102.09 10/17/2017 18:24:06 -68.50, 82.86 102.08 0.41 69
2 10/17/2017 19:13:41 68.36,-109.66 77.80 10/17/2017 19:13:34 68.33,-109.69 77.77 2.98 7
3 10/17/2017 20:04:19 -68.07, 58.02 102.48 10/17/2017 20:03:06 -68.11, 57.67 102.45 15.09 73
4 10/20/2017 10:39:52 -68.48,-161.37 101.13 10/20/2017 10:40:34 -68.46,-161.30 101.15 3.44 42
5 10/20/2017 11:30:35 68.29, 6.19 78.70 10/20/2017 11:30:02 68.30, 6.14 78.70 1.74 33
6 10/23/2017 02:06:14 69.09, 146.27 80.41 10/23/2017 02:07:23 68.98, 147.59 80.32 54.01 69
7 10/23/2017 02:56:45 -68.42, -45.52 100.24 10/23/2017 02:57:01 -68.43, -45.46 100.23 2.68 16
8 10/23/2017 03:47:28 68.23, 122.03 79.59 10/23/2017 03:46:29 68.26, 121.98 79.61 3.15 59
9 10/25/2017 18:22:58 68.49, -97.17 80.75 10/25/2017 18:23:59 68.49, -97.13 80.75 1.47 61
10 10/25/2017 19:13:39 -68.36, 70.33 99.37 10/25/2017 19:13:30 -68.33, 70.31 99.40 2.81 9
11 10/25/2017 20:04:15 67.80,-121.66 80.09 10/25/2017 20:03:04 67.82,-122.65 80.09 41.44 71
12 10/28/2017 10:39:52 68.44, 18.67 81.60 10/28/2017 10:40:27 68.44, 18.70 81.61 1.26 35
13 10/28/2017 11:30:33 -68.30,-173.83 98.53 10/28/2017 11:29:58 -68.29,-173.86 98.54 1.32 35

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 10/16/2017
SNOs_Map_NPP_TERRA_20171016.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 10/16/2017 in txt file.

Historical Predictions of SNOs between NPP and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service