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: 3/28/2023
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 03/30/2023 06:44:41 70.64, 74.22 66.95 03/30/2023 06:45:50 70.52, 75.50 66.77 49.29 69
2 03/30/2023 07:35:14 -70.07,-117.58 113.66 03/30/2023 07:35:26 -70.07,-117.51 113.67 2.74 12
3 03/30/2023 08:25:57 69.91, 49.98 66.15 03/30/2023 08:24:54 69.91, 49.91 66.16 2.68 63
4 04/01/2023 23:01:22 70.13,-169.21 65.38 04/01/2023 23:02:20 70.13,-169.17 65.36 1.75 58
5 04/01/2023 23:52:03 -69.99, -1.68 114.79 04/01/2023 23:51:50 -70.01, -1.70 114.77 2.40 13
6 04/02/2023 00:42:36 69.30, 166.65 64.48 04/02/2023 00:41:27 69.35, 165.04 64.59 63.38 69
7 04/04/2023 15:18:12 70.07, -53.33 64.27 04/04/2023 15:18:44 70.07, -53.35 64.27 1.00 32
8 04/04/2023 16:08:54 -69.98, 114.13 115.84 04/04/2023 16:08:14 -69.96, 114.13 115.85 1.56 40
9 04/07/2023 06:44:25 -70.49,-105.51 116.30 04/07/2023 06:45:36 -70.36,-104.67 116.46 33.97 71
10 04/07/2023 07:35:02 70.01, 62.54 63.20 04/07/2023 07:35:07 70.03, 62.50 63.21 2.35 5
11 04/07/2023 08:25:44 -69.92,-130.00 116.92 04/07/2023 08:24:37 -69.92,-130.03 116.91 0.87 67
12 04/09/2023 23:01:09 -70.13, 10.83 117.68 04/09/2023 23:02:02 -70.11, 10.87 117.70 2.35 53
13 04/09/2023 23:51:52 69.98, 178.38 62.15 04/09/2023 23:51:29 70.00, 178.35 62.18 2.55 23

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/28/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230329.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/28/2023 in txt file.

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