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: 3/30/2023
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 70.09,-169.14 65.33 04/01/2023 23:02:21 70.11,-169.19 65.34 3.12 59
2 04/01/2023 23:52:03 -70.00, -1.69 114.78 04/01/2023 23:51:50 -69.99, -1.72 114.79 1.50 13
3 04/02/2023 00:42:36 69.30, 166.64 64.48 04/02/2023 00:41:27 69.33, 165.02 64.57 63.67 69
4 04/04/2023 15:18:12 70.08, -53.34 64.28 04/04/2023 15:18:43 70.10, -53.31 64.30 2.44 31
5 04/04/2023 16:08:54 -69.99, 114.11 115.83 04/04/2023 16:08:13 -69.98, 114.16 115.83 1.93 41
6 04/07/2023 06:44:24 -70.45,-105.45 116.34 04/07/2023 06:45:35 -70.37,-104.66 116.45 30.69 71
7 04/07/2023 07:35:02 70.03, 62.52 63.21 04/07/2023 07:35:06 70.03, 62.50 63.22 0.77 4
8 04/07/2023 08:25:44 -69.94,-130.03 116.90 04/07/2023 08:24:36 -69.92,-130.02 116.91 1.52 68
9 04/09/2023 23:01:08 -70.10, 10.88 117.71 04/09/2023 23:02:01 -70.09, 10.85 117.72 1.43 53
10 04/09/2023 23:51:52 70.00, 178.35 62.17 04/09/2023 23:51:28 69.98, 178.33 62.16 2.23 24
11 04/10/2023 00:42:19 -69.11, -13.04 118.77 04/10/2023 00:41:11 -69.15, -15.15 118.65 83.58 68
12 04/12/2023 14:27:32 71.02, -42.12 62.28 04/12/2023 14:28:38 70.92, -39.65 62.11 90.30 66
13 04/12/2023 15:17:58 -70.08, 126.70 118.72 04/12/2023 15:18:21 -70.10, 126.77 118.71 3.32 23
14 04/12/2023 16:08:40 69.92, -65.76 61.11 04/12/2023 16:07:48 69.92, -65.83 61.12 2.93 52

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/30/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230331.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/30/2023 in txt file.

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