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 22:43:06 -81.24, -41.17 73.83 11/26/2017 22:41:51 -81.24, -41.16 73.79 0.21 75
2 11/26/2017 23:33:18 80.86, 136.70 104.69 11/26/2017 23:32:07 80.86, 136.87 104.71 3.03 71
3 11/27/2017 00:24:27 -81.25, -66.95 73.75 11/27/2017 00:23:22 -81.25, -66.96 73.72 0.24 65
4 11/27/2017 01:14:31 80.72, 113.77 104.34 11/27/2017 01:13:30 80.72, 113.91 104.36 2.54 61
5 11/27/2017 02:05:49 -81.27, -93.12 73.62 11/27/2017 02:04:54 -81.27, -93.16 73.59 0.69 55
6 11/27/2017 02:55:43 80.55, 91.10 103.94 11/27/2017 02:54:52 80.55, 91.21 103.95 2.03 51
7 11/27/2017 03:47:15 -81.31,-120.85 73.29 11/27/2017 03:46:30 -81.30,-120.92 73.26 1.12 45
8 11/27/2017 04:36:53 80.30, 68.97 103.43 11/27/2017 04:36:12 80.30, 69.05 103.44 1.50 41
9 11/27/2017 05:28:49 -81.33,-151.75 72.53 11/27/2017 05:28:14 -81.33,-151.83 72.50 1.53 35
10 11/27/2017 06:18:03 80.03, 46.68 102.92 11/27/2017 06:17:32 80.03, 46.73 102.93 0.93 31
11 11/27/2017 07:10:40 -81.12, 170.85 70.88 11/27/2017 07:10:15 -81.11, 170.78 70.86 1.86 25
12 11/27/2017 07:59:16 79.82, 23.36 102.57 11/27/2017 07:58:55 79.82, 23.38 102.58 0.34 21
13 11/27/2017 08:53:14 -79.30, 121.70 66.99 11/27/2017 08:52:59 -79.28, 121.69 66.98 1.97 15
14 11/27/2017 09:40:45 80.09, -4.69 103.07 11/27/2017 09:40:34 80.09, -4.70 103.08 0.25 11
15 11/27/2017 10:26:27 -66.16,-155.52 92.71 11/27/2017 10:26:21 -66.17,-155.51 92.71 0.65 6
16 11/27/2017 11:13:19 53.21, 21.18 75.05 11/27/2017 11:13:17 53.21, 21.19 75.05 0.31 2
17 11/27/2017 12:19:52 -67.99, 38.45 54.77 11/27/2017 12:19:57 -67.99, 38.46 54.78 0.06 5
18 11/27/2017 13:05:02 81.29, -91.10 108.25 11/27/2017 13:05:11 81.28, -91.08 108.24 0.68 9
19 11/27/2017 14:00:22 -70.64, 16.88 57.27 11/27/2017 14:00:37 -70.64, 16.84 57.27 1.51 15
20 11/27/2017 14:46:57 80.83,-129.64 110.12 11/27/2017 14:47:16 80.83,-129.63 110.10 0.34 19
21 11/27/2017 15:35:23 -80.07, 86.92 76.93 11/27/2017 15:35:47 -80.05, 86.96 76.96 2.39 24
22 11/27/2017 16:28:27 80.62,-158.50 110.67 11/27/2017 16:28:56 80.62,-158.51 110.65 0.15 29
23 11/27/2017 17:17:38 -81.18, 42.57 74.01 11/27/2017 17:18:12 -81.17, 42.66 74.04 2.18 34
24 11/27/2017 18:09:46 80.64, 176.45 110.64 11/27/2017 18:10:25 80.64, 176.41 110.62 0.67 39
25 11/27/2017 18:59:23 -81.33, 7.45 72.67 11/27/2017 19:00:07 -81.33, 7.55 72.71 1.82 44
26 11/27/2017 19:51:02 80.72, 152.44 110.45 11/27/2017 19:51:51 80.73, 152.37 110.43 1.19 49
27 11/27/2017 20:40:54 -81.32, -22.28 72.07 11/27/2017 20:41:48 -81.32, -22.20 72.11 1.40 54
28 11/27/2017 21:32:17 80.82, 128.80 110.21 11/27/2017 21:33:16 80.82, 128.70 110.18 1.69 59
29 11/27/2017 22:22:20 -81.29, -50.02 71.73 11/27/2017 22:23:24 -81.29, -49.96 71.78 0.96 64
30 11/27/2017 23:13:32 80.91, 105.19 109.97 11/27/2017 23:14:41 80.91, 105.07 109.94 2.18 69

Figure of NOAA-20 and NPP satellite orbits during SNOs since TLE Epoch: 11/21/2017
SNOs_Map_NOAA-20_NPP_20171121.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