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: 4/19/2023
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 70.11, -53.32 58.48 04/20/2023 15:18:50 70.11, -53.37 58.47 1.75 65
2 04/20/2023 16:08:27 -70.03, 114.12 121.62 04/20/2023 16:08:19 -70.05, 114.18 121.61 3.21 8
3 04/20/2023 16:59:04 69.54, -77.85 57.86 04/20/2023 16:57:53 69.56, -78.85 57.91 38.94 71
4 04/23/2023 07:34:35 70.13, 62.44 57.59 04/23/2023 07:35:18 70.11, 62.51 57.56 3.34 43
5 04/23/2023 08:25:16 -69.99,-130.03 122.57 04/23/2023 08:24:48 -70.00,-130.01 122.57 0.82 28
6 04/25/2023 23:51:23 70.06, 178.35 56.63 04/25/2023 23:51:46 70.06, 178.32 56.63 1.27 23
7 04/26/2023 00:42:05 -69.97, -14.20 123.48 04/26/2023 00:41:16 -69.95, -14.20 123.49 1.62 49
8 04/28/2023 15:17:32 -70.36, 126.35 123.90 04/28/2023 15:18:43 -70.30, 126.90 123.99 21.79 71
9 04/28/2023 16:08:12 70.05, -65.85 55.76 04/28/2023 16:08:13 70.02, -65.85 55.74 2.57 1
10 04/28/2023 16:58:53 -69.91, 101.68 124.40 04/28/2023 16:57:43 -69.92, 101.64 124.38 2.30 70
11 05/01/2023 07:34:15 -70.11,-117.45 125.00 05/01/2023 07:35:11 -70.11,-117.48 125.00 1.25 56
12 05/01/2023 08:24:59 70.00, 50.01 54.89 05/01/2023 08:24:38 70.00, 50.00 54.88 0.85 21

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/19/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230420.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/19/2023 in txt file.

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