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: 2/28/2023
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 02/28/2023 23:01:47 70.09,-169.16 77.91 02/28/2023 23:02:46 70.10,-169.24 77.91 3.02 59
2 02/28/2023 23:52:29 -70.00, -1.71 102.21 02/28/2023 23:52:16 -69.98, -1.77 102.22 2.71 13
3 03/01/2023 00:43:02 69.30, 166.62 77.05 03/01/2023 00:41:53 69.33, 164.98 77.16 64.39 69
4 03/03/2023 15:18:42 70.10, -53.42 76.90 03/03/2023 15:19:14 70.08, -53.39 76.86 3.11 32
5 03/03/2023 16:09:23 -69.96, 114.12 103.28 03/03/2023 16:08:44 -69.97, 114.09 103.26 1.44 39
6 03/06/2023 06:44:59 -70.55,-105.67 103.66 03/06/2023 06:46:09 -70.45,-104.61 103.82 41.00 70
7 03/06/2023 07:35:35 70.03, 62.46 75.78 03/06/2023 07:35:42 70.01, 62.40 75.76 2.94 7
8 03/06/2023 08:26:17 -69.93,-130.07 104.34 03/06/2023 08:25:11 -69.96,-130.04 104.31 3.30 66
9 03/08/2023 23:01:45 -70.12, 10.78 105.16 03/08/2023 23:02:41 -70.12, 10.80 105.18 0.75 56
10 03/08/2023 23:52:29 70.01, 178.25 74.72 03/08/2023 23:52:08 70.00, 178.28 74.71 1.71 21
11 03/09/2023 00:42:58 -69.23, -13.29 106.13 03/09/2023 00:41:49 -69.29, -15.05 105.98 69.85 69
12 03/11/2023 15:18:37 -70.07, 126.63 106.27 03/11/2023 15:19:06 -70.07, 126.62 106.28 0.44 29
13 03/11/2023 16:09:21 69.96, -65.90 73.61 03/11/2023 16:08:33 69.95, -65.90 73.60 1.60 48

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/28/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230228.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/28/2023 in txt file.

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