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: 2/4/2023
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 02/04/2023 23:01:51 -70.14, 10.81 93.74 02/04/2023 23:03:01 -70.17, 10.84 93.73 2.99 70
2 02/04/2023 23:52:35 70.03, 178.30 86.13 02/04/2023 23:52:29 70.01, 178.26 86.12 1.82 6
3 02/05/2023 00:43:13 -69.73, -13.94 94.20 02/05/2023 00:42:01 -69.79, -14.41 94.11 19.41 72
4 02/07/2023 15:18:42 -70.11, 126.64 94.60 02/07/2023 15:19:31 -70.11, 126.63 94.61 0.43 49
5 02/07/2023 16:09:26 70.00, -65.88 85.28 02/07/2023 16:08:58 70.01, -65.87 85.29 1.10 28
6 02/10/2023 07:35:34 -70.08,-117.55 95.48 02/10/2023 07:36:01 -70.08,-117.54 95.49 0.57 27
7 02/10/2023 08:26:18 69.97, 49.93 84.40 02/10/2023 08:25:28 69.97, 49.95 84.41 1.03 50
8 02/12/2023 23:01:47 70.32,-169.45 83.91 02/12/2023 23:02:59 70.24,-169.06 83.80 16.88 72
9 02/12/2023 23:52:25 -70.01, -1.66 96.43 02/12/2023 23:52:31 -70.03, -1.74 96.42 3.22 6
10 02/13/2023 00:43:09 69.90, 165.81 83.45 02/13/2023 00:41:58 69.91, 165.75 83.47 2.40 71
11 02/15/2023 15:18:35 70.10, -53.34 82.77 02/15/2023 15:19:30 70.10, -53.38 82.76 1.83 55
12 02/15/2023 16:09:17 -70.00, 114.13 97.35 02/15/2023 16:09:00 -70.00, 114.11 97.35 0.90 17
13 02/15/2023 16:59:47 69.15, -77.33 81.75 02/15/2023 16:58:39 69.22, -79.30 81.91 78.34 68

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/4/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230204.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/04/2023 in txt file.

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