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: 4/5/2023
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 04/07/2023 07:35:03 70.07, 62.45 63.25 04/07/2023 07:35:25 70.08, 62.48 63.26 1.38 22
2 04/07/2023 08:25:45 -69.98,-130.10 116.85 04/07/2023 08:24:55 -69.96,-130.05 116.87 2.92 50
3 04/09/2023 23:01:13 -70.34, 10.51 117.46 04/09/2023 23:02:24 -70.27, 10.98 117.56 19.80 71
4 04/09/2023 23:51:53 70.02, 178.31 62.20 04/09/2023 23:51:53 70.05, 178.32 62.23 3.43 0
5 04/10/2023 00:42:35 -69.93, -14.24 117.91 04/10/2023 00:41:23 -69.94, -14.20 117.90 1.68 72
6 04/12/2023 15:17:59 -70.09, 126.68 118.71 04/12/2023 15:18:54 -70.10, 126.63 118.71 2.17 55
7 04/12/2023 16:08:43 69.98, -65.85 61.17 04/12/2023 16:08:21 69.99, -65.88 61.18 1.56 22
8 04/12/2023 16:59:11 -69.15, 102.68 119.71 04/12/2023 16:58:03 -69.22, 100.71 119.58 78.14 68
9 04/15/2023 07:34:48 -70.06,-117.49 119.71 04/15/2023 07:35:20 -70.06,-117.54 119.72 2.06 32
10 04/15/2023 08:25:32 69.95, 49.98 60.17 04/15/2023 08:24:47 69.95, 49.94 60.17 1.65 45
11 04/17/2023 23:01:02 70.45,-169.63 59.76 04/17/2023 23:02:13 70.31,-168.93 59.59 30.49 71
12 04/17/2023 23:51:38 -70.04, -1.67 120.69 04/17/2023 23:51:46 -70.04, -1.68 120.69 0.46 8
13 04/18/2023 00:42:22 69.94, 165.79 59.20 04/18/2023 00:41:13 69.92, 165.80 59.19 1.36 69

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/5/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230406.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/05/2023 in txt file.

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