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: 3/24/2023
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 03/24/2023 23:01:32 -70.15, 10.74 111.47 03/24/2023 23:02:34 -70.15, 10.82 111.49 2.92 62
2 03/24/2023 23:52:15 69.98, 178.31 68.34 03/24/2023 23:52:02 69.98, 178.24 68.34 2.63 13
3 03/25/2023 00:42:49 -69.47, -13.62 112.21 03/25/2023 00:41:38 -69.54, -14.74 112.10 44.10 71
4 03/27/2023 15:18:22 -70.09, 126.61 112.59 03/27/2023 15:18:57 -70.11, 126.67 112.58 2.87 35
5 03/27/2023 16:09:06 69.98, -65.91 67.28 03/27/2023 16:08:24 70.00, -65.84 67.30 3.21 42
6 03/30/2023 06:44:36 70.41, 74.59 66.70 03/30/2023 06:45:47 70.30, 75.21 66.56 26.29 71
7 03/30/2023 07:35:13 -70.05,-117.54 113.69 03/30/2023 07:35:20 -70.02,-117.56 113.72 3.40 7
8 03/30/2023 08:25:56 69.89, 50.01 66.13 03/30/2023 08:24:47 69.90, 49.93 66.16 3.44 69
9 04/01/2023 23:01:22 70.12,-169.18 65.36 04/01/2023 23:02:10 70.09,-169.17 65.33 2.70 48
10 04/01/2023 23:52:03 -69.97, -1.64 114.82 04/01/2023 23:51:40 -69.98, -1.69 114.80 2.46 23
11 04/04/2023 14:27:42 -70.89, 138.06 114.86 04/04/2023 14:28:50 -70.78, 140.12 115.04 76.14 68
12 04/04/2023 15:18:12 70.05, -53.31 64.26 04/04/2023 15:18:28 70.06, -53.30 64.26 0.28 16
13 04/04/2023 16:08:54 -69.96, 114.16 115.86 04/04/2023 16:07:58 -69.94, 114.18 115.87 1.48 56

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/24/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230324.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/24/2023 in txt file.

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