Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/29/2023
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 03/30/2023 22:24:28 -70.16, 20.13 113.82 03/30/2023 22:25:20 -70.17, 20.14 113.82 0.63 52
2 03/30/2023 23:15:12 70.05,-172.39 66.06 03/30/2023 23:14:47 70.06,-172.36 66.07 1.50 25
3 03/31/2023 00:05:38 -69.11, -3.69 114.94 03/31/2023 00:04:31 -69.18, -5.93 114.80 89.01 67
4 04/02/2023 13:50:56 70.89, -32.59 65.93 04/02/2023 13:52:04 70.80, -30.65 65.77 71.50 68
5 04/02/2023 14:41:25 -70.11, 135.98 114.91 04/02/2023 14:41:45 -70.09, 135.92 114.94 3.34 20
6 04/02/2023 15:32:09 70.00, -56.55 64.97 04/02/2023 15:31:12 69.98, -56.59 64.95 3.04 57
7 04/05/2023 06:07:40 70.17, 84.33 64.14 04/05/2023 06:08:38 70.18, 84.32 64.14 0.86 58
8 04/05/2023 06:58:22 -70.07,-108.19 115.98 04/05/2023 06:58:08 -70.07,-108.21 115.99 0.68 14
9 04/05/2023 07:48:54 69.33, 60.21 63.24 04/05/2023 07:47:45 69.40, 58.53 63.37 66.61 69
10 04/07/2023 22:24:36 70.14,-159.86 63.09 04/07/2023 22:24:59 70.16,-159.80 63.10 2.72 23
11 04/07/2023 23:15:18 -70.04, 7.62 117.03 04/07/2023 23:14:29 -70.05, 7.67 117.02 2.27 49
12 04/10/2023 13:50:49 -70.23, 148.47 117.81 04/10/2023 13:51:54 -70.21, 148.53 117.84 3.21 65
13 04/10/2023 14:41:32 70.07, -43.98 62.02 04/10/2023 14:41:21 70.09, -43.99 62.04 1.79 11
14 04/10/2023 15:32:08 -69.65, 123.97 118.44 04/10/2023 15:30:56 -69.71, 123.11 118.35 33.85 72

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/29/2023
SNOs_Map_NOAA-20_LANDSAT-9_20230330.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 03/29/2023 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-9