Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/12/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 04/13/2023 22:35:59 71.08,-164.33 61.85 04/13/2023 22:37:05 70.99,-161.75 61.69 93.90 66
2 04/13/2023 23:26:24 -70.10, 4.56 119.19 04/13/2023 23:26:49 -70.11, 4.58 119.18 1.97 25
3 04/14/2023 00:17:08 69.98, 172.04 60.68 04/14/2023 00:16:16 70.01, 172.08 60.71 3.25 52
4 04/16/2023 14:52:36 70.37, -47.40 60.15 04/16/2023 14:53:47 70.28, -46.95 60.04 19.84 71
5 04/16/2023 15:43:14 -70.07, 120.38 120.18 04/16/2023 15:43:19 -70.06, 120.37 120.19 1.45 5
6 04/16/2023 16:33:58 69.96, -72.14 59.70 04/16/2023 16:32:46 69.95, -72.13 59.70 1.05 72
7 04/19/2023 07:09:21 70.15, 68.73 58.98 04/19/2023 07:10:17 70.16, 68.76 58.98 1.97 56
8 04/19/2023 08:00:03 -70.06,-123.81 121.13 04/19/2023 07:59:47 -70.06,-123.76 121.14 2.09 16
9 04/19/2023 08:50:34 69.26, 44.67 58.03 04/19/2023 08:49:26 69.29, 42.84 58.11 72.17 68
10 04/21/2023 23:26:10 70.10,-175.40 58.00 04/21/2023 23:26:47 70.10,-175.45 58.00 2.34 37
11 04/22/2023 00:16:52 -70.00, -7.94 122.11 04/22/2023 00:16:17 -70.00, -7.96 122.11 1.01 35
12 04/24/2023 14:52:30 -70.94, 131.73 122.01 04/24/2023 14:53:38 -70.81, 133.82 122.19 77.27 68
13 04/24/2023 15:43:00 70.10, -59.62 57.11 04/24/2023 15:43:16 70.10, -59.59 57.10 1.48 16
14 04/24/2023 16:33:42 -70.01, 107.84 123.00 04/24/2023 16:32:46 -70.00, 107.90 123.01 2.70 56

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/12/2023
SNOs_Map_NOAA-21_LANDSAT-8_20230412.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/12/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-8