Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/1/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 04/01/2023 23:01:22 70.11,-169.17 65.35 04/01/2023 23:02:28 70.11,-169.22 65.34 2.00 66
2 04/01/2023 23:52:04 -70.02, -1.72 114.76 04/01/2023 23:51:58 -70.00, -1.75 114.78 2.71 6
3 04/02/2023 00:42:41 69.54, 166.31 64.72 04/02/2023 00:41:30 69.62, 165.37 64.84 37.41 71
4 04/04/2023 15:18:13 70.10, -53.37 64.30 04/04/2023 15:18:57 70.08, -53.39 64.28 2.31 44
5 04/04/2023 16:08:54 -69.95, 114.16 115.86 04/04/2023 16:08:27 -69.97, 114.08 115.85 3.34 27
6 04/07/2023 06:44:36 -71.10,-106.51 115.66 04/07/2023 06:45:42 -70.97,-103.84 115.87 97.54 66
7 04/07/2023 07:35:02 70.05, 62.49 63.23 04/07/2023 07:35:24 70.04, 62.43 63.22 2.30 22
8 04/07/2023 08:25:44 -69.95,-130.05 116.88 04/07/2023 08:24:54 -69.93,-130.09 116.90 2.89 50
9 04/09/2023 23:01:11 -70.27, 10.61 117.53 04/09/2023 23:02:22 -70.22, 10.93 117.60 13.32 71
10 04/09/2023 23:51:52 70.01, 178.33 62.19 04/09/2023 23:51:51 70.00, 178.26 62.17 3.12 1
11 04/10/2023 00:42:34 -69.92, -14.21 117.93 04/10/2023 00:41:20 -69.94, -14.18 117.89 3.35 74
12 04/12/2023 15:17:58 -70.09, 126.68 118.71 04/12/2023 15:18:49 -70.12, 126.68 118.69 3.06 51
13 04/12/2023 16:08:42 69.99, -65.86 61.18 04/12/2023 16:08:16 70.00, -65.84 61.19 1.57 26

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/1/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230401.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/01/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-9