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: 4/18/2023
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 04/20/2023 15:17:45 70.12, -53.33 58.48 04/20/2023 15:18:50 70.11, -53.37 58.46 2.42 65
2 04/20/2023 16:08:27 -70.04, 114.11 121.62 04/20/2023 16:08:19 -70.05, 114.18 121.61 2.53 8
3 04/20/2023 16:59:03 69.50, -77.78 57.82 04/20/2023 16:57:53 69.56, -78.85 57.91 42.40 70
4 04/23/2023 07:34:34 70.08, 62.52 57.54 04/23/2023 07:35:18 70.11, 62.50 57.55 2.60 44
5 04/23/2023 08:25:16 -70.00,-130.04 122.57 04/23/2023 08:24:48 -70.00,-130.02 122.57 0.70 28
6 04/25/2023 23:51:23 70.06, 178.34 56.63 04/25/2023 23:51:46 70.06, 178.32 56.63 0.77 23
7 04/26/2023 00:42:05 -69.97, -14.21 123.48 04/26/2023 00:41:16 -69.96, -14.20 123.49 1.92 49
8 04/28/2023 15:17:32 -70.37, 126.35 123.90 04/28/2023 15:18:43 -70.31, 126.91 123.98 22.06 71
9 04/28/2023 16:08:12 70.05, -65.85 55.76 04/28/2023 16:08:13 70.03, -65.84 55.74 2.29 1
10 04/28/2023 16:58:53 -69.91, 101.68 124.40 04/28/2023 16:57:43 -69.92, 101.65 124.38 2.38 70
11 05/01/2023 07:34:15 -70.11,-117.45 125.00 05/01/2023 07:35:11 -70.12,-117.46 124.99 2.13 56
12 05/01/2023 08:24:59 70.00, 50.01 54.89 05/01/2023 08:24:38 70.01, 50.02 54.89 0.71 21

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/18/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230419.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/18/2023 in txt file.

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