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: 1/23/2023
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 01/25/2023 06:45:10 70.35, 74.71 89.40 01/25/2023 06:46:21 70.27, 75.15 89.28 19.27 71
2 01/25/2023 07:35:48 -70.05,-117.51 90.93 01/25/2023 07:35:53 -70.04,-117.53 90.95 1.28 5
3 01/25/2023 08:26:32 69.94, 49.97 88.94 01/25/2023 08:25:20 69.94, 49.97 88.96 0.58 72
4 01/27/2023 23:01:59 70.13,-169.18 88.49 01/27/2023 23:02:54 70.15,-169.14 88.50 2.77 55
5 01/27/2023 23:52:41 -70.04, -1.73 91.62 01/27/2023 23:52:24 -70.05, -1.66 91.62 2.54 17
6 01/28/2023 00:43:11 69.19, 166.83 87.48 01/28/2023 00:42:03 69.28, 164.94 87.66 75.25 68
7 01/30/2023 15:18:51 70.09, -53.34 87.73 01/30/2023 15:19:25 70.10, -53.35 87.73 0.99 34
8 01/30/2023 16:09:33 -69.99, 114.12 92.38 01/30/2023 16:08:55 -69.99, 114.13 92.38 0.73 38
9 02/02/2023 06:45:09 -70.73,-105.90 92.33 02/02/2023 06:46:18 -70.64,-104.33 92.50 58.76 69
10 02/02/2023 07:35:42 70.05, 62.49 86.94 02/02/2023 07:35:54 70.03, 62.44 86.92 2.83 12
11 02/02/2023 08:26:24 -69.96,-130.05 93.17 02/02/2023 08:25:24 -69.93,-130.07 93.19 3.22 60
12 02/04/2023 23:01:50 -70.13, 10.83 93.75 02/04/2023 23:02:55 -70.14, 10.82 93.76 0.57 65
13 02/04/2023 23:52:34 70.03, 178.30 86.13 02/04/2023 23:52:22 70.02, 178.31 86.13 0.90 12
14 02/05/2023 00:43:09 -69.56, -13.69 94.38 02/05/2023 00:41:58 -69.59, -14.66 94.30 37.64 71

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/23/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230123.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/23/2023 in txt file.

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