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: 11/22/2017
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 11/27/2017 00:24:19 -81.06, -60.40 74.67 11/27/2017 00:23:05 -81.06, -60.26 74.65 2.48 74
2 11/27/2017 01:15:34 81.33, 93.55 107.17 11/27/2017 01:14:25 81.33, 93.45 107.22 1.79 69
3 11/27/2017 02:05:42 -81.10, -86.87 74.49 11/27/2017 02:04:38 -81.10, -86.79 74.47 1.26 64
4 11/27/2017 02:57:11 81.30, 61.49 108.09 11/27/2017 02:56:12 81.28, 61.34 108.14 2.91 59
5 11/27/2017 03:47:09 -81.19,-114.86 74.11 11/27/2017 03:46:15 -81.19,-114.85 74.08 0.06 54
6 11/27/2017 04:37:12 80.53, 65.93 103.92 11/27/2017 04:36:22 80.53, 66.04 103.93 1.99 50
7 11/27/2017 05:28:44 -81.30,-146.00 73.30 11/27/2017 05:28:00 -81.30,-146.07 73.27 1.11 44
8 11/27/2017 06:18:40 80.71, 37.87 104.36 11/27/2017 06:18:00 80.71, 37.91 104.38 0.78 40
9 11/27/2017 07:10:38 -81.25, 175.32 71.50 11/27/2017 07:10:04 -81.23, 175.22 71.47 2.19 34
10 11/27/2017 08:00:22 81.11, 4.20 105.60 11/27/2017 07:59:52 81.11, 4.18 105.61 0.33 30
11 11/27/2017 08:48:51 -77.05,-152.45 81.30 11/27/2017 08:48:26 -77.05,-152.37 81.31 2.17 25
12 11/27/2017 09:42:39 81.23, -43.42 108.63 11/27/2017 09:42:19 81.22, -43.46 108.64 1.23 20
13 11/27/2017 10:30:08 -76.92,-177.26 81.45 11/27/2017 10:29:53 -76.92,-177.23 81.45 0.75 15
14 11/27/2017 11:18:15 69.25, 7.99 90.34 11/27/2017 11:18:04 69.25, 8.03 90.34 1.30 11
15 11/27/2017 12:12:34 -79.50, 142.83 77.94 11/27/2017 12:12:29 -79.50, 142.82 77.94 0.42 5
16 11/27/2017 13:00:26 71.93, -21.69 93.08 11/27/2017 13:00:25 71.93, -21.70 93.08 0.39 1
17 11/27/2017 13:56:32 -80.72, 61.06 69.60 11/27/2017 13:56:37 -80.72, 61.08 69.61 0.61 5
18 11/27/2017 14:52:15 67.16, 179.42 126.02 11/27/2017 14:52:25 67.16, 179.40 126.01 0.84 10
19 11/27/2017 15:39:30 -77.47, 9.71 64.49 11/27/2017 15:39:45 -77.48, 9.69 64.50 0.38 15
20 11/27/2017 16:27:24 81.31,-131.05 106.84 11/27/2017 16:27:43 81.30,-131.02 106.82 0.98 19
21 11/27/2017 17:20:56 -77.22, -16.76 64.16 11/27/2017 17:21:21 -77.21, -16.83 64.17 1.77 25
22 11/27/2017 18:09:44 80.88,-179.50 110.02 11/27/2017 18:10:13 80.88,-179.50 110.00 0.10 29
23 11/27/2017 18:58:57 -81.05, 21.14 74.55 11/27/2017 18:59:31 -81.03, 21.24 74.59 2.53 34
24 11/27/2017 19:51:27 80.37, 147.32 111.25 11/27/2017 19:52:06 80.37, 147.26 111.23 1.04 39
25 11/27/2017 20:41:00 -81.33, -20.83 72.27 11/27/2017 20:41:44 -81.33, -20.75 72.31 1.48 44
26 11/27/2017 21:32:54 80.18, 119.76 111.63 11/27/2017 21:33:43 80.18, 119.64 111.61 2.26 49
27 11/27/2017 22:22:39 -81.22, -53.59 71.26 11/27/2017 22:23:33 -81.22, -53.57 71.29 0.32 54
28 11/27/2017 23:12:43 81.30, 127.94 106.85 11/27/2017 23:13:41 81.29, 128.07 106.80 2.54 58
29 11/28/2017 00:04:08 -81.12, -82.36 70.77 11/28/2017 00:05:12 -81.13, -82.41 70.80 0.88 64
30 11/28/2017 00:54:22 81.33, 95.08 107.87 11/28/2017 00:55:30 81.32, 95.16 107.82 1.42 68

Figure of NOAA-20 and NPP satellite orbits during SNOs since TLE Epoch: 11/22/2017
SNOs_Map_NOAA-20_NPP_20171123.jpg

Download SNOs between NOAA-20 and NPP since TLE EPOCH: 11/22/2017 in txt file.

Historical Predications of SNOs between NOAA-20 and NPP

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service