Simultaneous Nadir Overpasses (SNOs) Predictions

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

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/21/2017
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 11/26/2017 22:43:08 -81.26, -41.70 73.75 11/26/2017 22:41:53 -81.26, -41.70 73.71 0.05 75
2 11/26/2017 23:33:19 80.86, 136.57 104.71 11/26/2017 23:32:08 80.86, 136.73 104.73 2.95 71
3 11/27/2017 00:24:29 -81.26, -67.49 73.68 11/27/2017 00:23:24 -81.26, -67.51 73.64 0.40 65
4 11/27/2017 01:14:32 80.73, 113.64 104.36 11/27/2017 01:13:31 80.73, 113.78 104.38 2.46 61
5 11/27/2017 02:05:51 -81.28, -93.66 73.55 11/27/2017 02:04:56 -81.28, -93.71 73.52 0.85 55
6 11/27/2017 02:55:45 80.58, 90.64 104.02 11/27/2017 02:54:54 80.58, 90.75 104.03 1.95 51
7 11/27/2017 03:47:18 -81.32,-121.79 73.16 11/27/2017 03:46:33 -81.31,-121.86 73.13 1.28 45
8 11/27/2017 04:36:56 80.36, 68.21 103.56 11/27/2017 04:36:15 80.36, 68.29 103.57 1.41 41
9 11/27/2017 05:28:53 -81.33,-153.08 72.35 11/27/2017 05:28:18 -81.32,-153.17 72.32 1.69 35
10 11/27/2017 06:18:07 80.12, 45.65 103.10 11/27/2017 06:17:36 80.13, 45.70 103.11 0.85 31
11 11/27/2017 07:10:47 -81.03, 168.48 70.54 11/27/2017 07:10:22 -81.02, 168.41 70.52 2.01 25
12 11/27/2017 07:59:21 79.96, 22.08 102.81 11/27/2017 07:59:00 79.96, 22.09 102.81 0.26 21
13 11/27/2017 08:53:26 -78.89, 118.83 66.40 11/27/2017 08:53:11 -78.87, 118.83 66.38 2.09 15
14 11/27/2017 09:40:52 80.27, -6.67 103.41 11/27/2017 09:40:41 80.27, -6.68 103.42 0.31 11
15 11/27/2017 10:26:44 -67.06,-156.51 91.84 11/27/2017 10:26:38 -67.06,-156.50 91.84 0.58 6
16 11/27/2017 11:13:29 53.75, 20.91 75.55 11/27/2017 11:13:27 53.75, 20.91 75.55 0.29 2
17 11/27/2017 12:20:11 -67.00, 37.27 53.86 11/27/2017 12:20:16 -67.00, 37.27 53.86 0.03 5
18 11/27/2017 13:05:11 81.22, -94.36 108.70 11/27/2017 13:05:20 81.22, -94.34 108.69 0.65 9
19 11/27/2017 14:00:37 -69.88, 15.71 56.54 11/27/2017 14:00:52 -69.88, 15.67 56.55 1.60 15
20 11/27/2017 14:47:03 80.71,-131.88 110.46 11/27/2017 14:47:22 80.70,-131.86 110.44 0.28 19
21 11/27/2017 15:35:32 -80.33, 84.01 76.44 11/27/2017 15:35:56 -80.31, 84.06 76.47 2.26 24
22 11/27/2017 16:28:32 80.50,-160.30 110.95 11/27/2017 16:29:01 80.50,-160.31 110.93 0.23 29
23 11/27/2017 17:17:44 -81.25, 40.12 73.67 11/27/2017 17:18:18 -81.23, 40.21 73.71 2.02 34
24 11/27/2017 18:09:50 80.54, 174.97 110.87 11/27/2017 18:10:29 80.54, 174.93 110.85 0.77 39
25 11/27/2017 18:59:27 -81.33, 5.72 72.44 11/27/2017 19:00:11 -81.33, 5.81 72.48 1.65 44
26 11/27/2017 19:51:04 80.67, 151.62 110.57 11/27/2017 19:51:53 80.68, 151.54 110.55 1.29 49
27 11/27/2017 20:40:57 -81.31, -23.60 71.89 11/27/2017 20:41:51 -81.30, -23.53 71.94 1.22 54
28 11/27/2017 21:32:18 80.80, 128.31 110.28 11/27/2017 21:33:17 80.80, 128.21 110.26 1.80 59
29 11/27/2017 22:22:22 -81.28, -50.95 71.61 11/27/2017 22:23:26 -81.28, -50.90 71.65 0.77 64
30 11/27/2017 23:13:33 80.89, 104.70 110.04 11/27/2017 23:14:42 80.89, 104.56 110.01 2.30 69

Figure of NOAA-20 and NPP satellite orbits during SNOs since TLE Epoch: 11/21/2017
SNOs_Map_NOAA-20_NPP_20171122.jpg

Download SNOs between NOAA-20 and NPP since TLE EPOCH: 11/21/2017 in txt file.

Historical Predications of SNOs between NOAA-20 and NPP

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service