Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/30/2023
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 04/01/2023 04:53:21 70.58, 102.76 66.11 04/01/2023 04:54:31 70.52, 103.32 66.03 22.13 70
2 04/01/2023 05:43:58 -70.23, -89.38 114.27 04/01/2023 05:44:04 -70.24, -89.45 114.26 2.83 6
3 04/01/2023 06:34:43 70.16, 78.04 65.65 04/01/2023 06:33:31 70.13, 78.04 65.63 3.27 72
4 04/03/2023 21:10:13 70.29,-141.01 64.78 04/03/2023 21:10:58 70.30,-141.10 64.78 3.34 45
5 04/03/2023 22:00:55 -70.20, 26.44 115.33 04/03/2023 22:00:28 -70.19, 26.37 115.35 3.16 27
6 04/06/2023 12:36:36 -70.92, 166.43 115.58 04/06/2023 12:37:45 -70.85, 167.99 115.70 57.20 69
7 04/06/2023 13:27:10 70.28, -25.22 63.74 04/06/2023 13:27:21 70.25, -25.26 63.71 3.17 11
8 04/06/2023 14:17:52 -70.19, 142.23 116.37 04/06/2023 14:16:50 -70.19, 142.29 116.36 2.13 62
9 04/09/2023 04:53:21 -70.34, -76.86 117.20 04/09/2023 04:54:15 -70.32, -76.90 117.22 2.45 54
10 04/09/2023 05:44:05 70.22, 90.63 62.68 04/09/2023 05:43:42 70.21, 90.58 62.66 2.69 23
11 04/09/2023 06:34:32 -69.34,-100.73 118.25 04/09/2023 06:33:25 -69.38,-102.92 118.15 86.03 67
12 04/11/2023 20:19:48 71.07,-129.61 62.60 04/11/2023 20:20:56 70.94,-127.69 62.41 70.93 68
13 04/11/2023 21:10:17 -70.30, 38.98 118.23 04/11/2023 21:10:36 -70.29, 38.96 118.25 1.59 19
14 04/11/2023 22:01:01 70.19,-153.53 61.64 04/11/2023 22:00:03 70.17,-153.56 61.63 2.28 58

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/30/2023
SNOs_Map_NPP_LANDSAT-9_20230330.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/30/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9