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: 11/24/2017
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 00:24:23 -81.11, -61.93 74.45 11/27/2017 00:23:09 -81.11, -61.81 74.43 2.05 74
2 11/27/2017 01:15:37 81.33, 92.33 107.34 11/27/2017 01:14:28 81.33, 92.21 107.39 2.09 69
3 11/27/2017 02:05:46 -81.15, -88.41 74.28 11/27/2017 02:04:42 -81.15, -88.36 74.25 0.83 64
4 11/27/2017 02:55:55 80.60, 90.24 104.07 11/27/2017 02:54:55 80.60, 90.40 104.08 2.92 60
5 11/27/2017 03:47:15 -81.24,-117.19 73.79 11/27/2017 03:46:21 -81.24,-117.21 73.76 0.37 54
6 11/27/2017 04:37:18 80.67, 63.87 104.25 11/27/2017 04:36:28 80.67, 63.97 104.26 1.69 50
7 11/27/2017 05:28:53 -81.33,-149.57 72.82 11/27/2017 05:28:09 -81.33,-149.66 72.79 1.53 44
8 11/27/2017 06:18:49 80.89, 34.67 104.85 11/27/2017 06:18:09 80.89, 34.69 104.86 0.49 40
9 11/27/2017 07:10:51 -81.10, 170.35 70.81 11/27/2017 07:10:17 -81.09, 170.23 70.78 2.61 34
10 11/27/2017 08:00:36 81.25, -0.81 106.29 11/27/2017 08:00:06 81.25, -0.84 106.31 0.60 30
11 11/27/2017 08:49:13 -77.94,-156.53 80.19 11/27/2017 08:48:48 -77.94,-156.45 80.19 1.79 25
12 11/27/2017 09:43:00 80.97, -50.98 109.68 11/27/2017 09:42:40 80.96, -51.01 109.70 1.44 20
13 11/27/2017 10:30:42 -78.30, 176.21 79.69 11/27/2017 10:30:27 -78.30, 176.23 79.69 0.45 15
14 11/27/2017 11:18:43 70.68, 5.83 91.78 11/27/2017 11:18:32 70.68, 5.86 91.79 1.14 11
15 11/27/2017 12:13:25 -80.83, 127.19 75.29 11/27/2017 12:13:20 -80.82, 127.18 75.29 0.55 5
16 11/27/2017 13:01:01 73.66, -25.30 94.90 11/27/2017 13:01:00 73.66, -25.32 94.90 0.42 1
17 11/27/2017 13:57:29 -79.11, 44.32 66.68 11/27/2017 13:57:34 -79.11, 44.33 66.69 0.48 5
18 11/27/2017 14:52:43 65.68, 177.80 127.37 11/27/2017 14:52:53 65.68, 177.78 127.36 1.00 10
19 11/27/2017 15:40:08 -75.83, 3.37 62.57 11/27/2017 15:40:23 -75.83, 3.34 62.58 0.72 15
20 11/27/2017 16:27:46 81.31,-139.77 108.01 11/27/2017 16:28:05 81.31,-139.75 107.99 0.73 19
21 11/27/2017 17:21:18 -76.24, -20.57 63.02 11/27/2017 17:21:43 -76.24, -20.65 63.03 2.22 25
22 11/27/2017 18:09:59 80.56, 175.27 110.81 11/27/2017 18:10:28 80.57, 175.26 110.80 0.22 29
23 11/27/2017 18:59:12 -81.23, 15.44 73.75 11/27/2017 18:59:46 -81.22, 15.54 73.79 2.05 34
24 11/27/2017 19:51:37 80.10, 144.16 111.77 11/27/2017 19:52:16 80.10, 144.09 111.76 1.40 39
25 11/27/2017 20:41:10 -81.29, -24.78 71.74 11/27/2017 20:41:54 -81.29, -24.73 71.78 0.96 44
26 11/27/2017 21:33:01 79.98, 117.61 112.00 11/27/2017 21:33:50 79.98, 117.48 111.99 2.66 49
27 11/27/2017 22:22:46 -81.15, -56.28 70.89 11/27/2017 22:23:40 -81.15, -56.29 70.92 0.22 54
28 11/27/2017 23:12:49 81.33, 125.55 107.17 11/27/2017 23:13:47 81.32, 125.66 107.12 2.12 58
29 11/28/2017 00:04:12 -81.07, -83.88 70.56 11/28/2017 00:05:16 -81.07, -83.96 70.58 1.45 64
30 11/28/2017 00:54:26 81.31, 93.48 108.08 11/28/2017 00:55:34 81.31, 93.53 108.04 0.98 68

Figure of NOAA-20 and NPP satellite orbits during SNOs since TLE Epoch: 11/24/2017
SNOs_Map_NOAA-20_NPP_20171124.jpg

Download SNOs between NOAA-20 and NPP since TLE EPOCH: 11/24/2017 in txt file.

Historical Predications of SNOs between NOAA-20 and NPP

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service