Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 12/24/2017
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 12/24/2017 17:58:09 -68.44, 89.09 88.28 12/24/2017 17:59:14 -68.44, 89.12 88.28 1.52 65
2 12/24/2017 18:48:50 68.26,-103.37 91.55 12/24/2017 18:48:42 68.28,-103.43 91.57 3.44 8
3 12/24/2017 19:39:28 -67.98, 64.31 88.75 12/24/2017 19:38:15 -68.00, 63.87 88.72 18.26 73
4 12/27/2017 11:04:19 68.42, 12.56 91.62 12/27/2017 11:05:09 68.42, 12.62 91.61 2.43 50
5 12/27/2017 11:54:59 -68.24,-179.89 88.57 12/27/2017 11:54:40 -68.25,-179.95 88.56 2.84 19
6 12/27/2017 12:45:28 67.42, -11.56 90.60 12/27/2017 12:44:19 67.47, -13.21 90.67 70.47 69
7 12/30/2017 04:10:27 -68.40, -63.95 88.56 12/30/2017 04:11:06 -68.38, -63.92 88.58 2.39 39
8 12/30/2017 05:01:08 68.23, 103.58 91.28 12/30/2017 05:00:34 68.21, 103.53 91.26 3.00 34
9 01/01/2018 20:26:12 -69.41, 50.82 87.73 01/01/2018 20:27:19 -69.27, 53.09 87.89 90.42 67
10 01/01/2018 21:16:36 68.34,-140.42 91.19 01/01/2018 21:17:01 68.33,-140.45 91.17 1.87 25
11 01/01/2018 22:07:17 -68.20, 27.07 88.96 01/01/2018 22:06:31 -68.22, 27.06 88.94 2.51 46
12 01/04/2018 13:32:12 68.88, -24.99 91.48 01/04/2018 13:33:22 68.77, -24.03 91.35 40.41 70
13 01/04/2018 14:22:45 -68.30, 143.08 89.12 01/04/2018 14:22:58 -68.33, 143.06 89.09 2.90 13
14 01/04/2018 15:13:27 68.20, -49.47 90.78 01/04/2018 15:12:25 68.21, -49.43 90.79 2.11 62

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 12/24/2017
SNOs_Map_NOAA-20_TERRA_20171224.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 12/24/2017 in txt file.

Historical Predictions of SNOs between NOAA-20 and TERRA

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service