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: 7/24/2023
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 07/25/2023 15:17:21 70.19, -53.48 50.59 07/25/2023 15:18:32 70.15, -53.18 50.52 12.50 71
2 07/25/2023 16:08:01 -69.99, 114.14 129.61 07/25/2023 16:08:03 -69.97, 114.21 129.64 3.53 2
3 07/25/2023 16:58:44 69.83, -78.31 50.23 07/25/2023 16:57:31 69.82, -78.36 50.23 2.39 73
4 07/28/2023 07:34:10 70.01, 62.58 51.00 07/28/2023 07:35:02 70.00, 62.51 50.98 2.84 52
5 07/28/2023 08:24:52 -69.92,-129.96 129.10 07/28/2023 08:24:31 -69.94,-129.94 129.07 2.86 21
6 07/28/2023 09:15:20 68.95, 38.72 49.91 07/28/2023 09:14:13 69.01, 36.45 50.06 90.80 67
7 07/30/2023 23:51:02 70.00, 178.38 51.62 07/30/2023 23:51:29 69.99, 178.39 51.61 0.60 27
8 07/31/2023 00:41:44 -69.90, -14.16 128.48 07/31/2023 00:40:59 -69.88, -14.13 128.49 2.16 45
9 08/02/2023 15:17:15 -70.35, 126.30 127.35 08/02/2023 15:18:26 -70.23, 126.99 127.50 29.04 71
10 08/02/2023 16:07:53 69.93, -65.75 52.23 08/02/2023 16:07:56 69.96, -65.76 52.25 2.76 3
11 08/02/2023 16:58:35 -69.84, 101.71 127.87 08/02/2023 16:57:26 -69.85, 101.72 127.85 1.77 69
12 08/05/2023 07:34:00 -70.03,-117.43 126.98 08/05/2023 07:34:55 -70.02,-117.43 127.01 2.20 55
13 08/05/2023 08:24:43 69.88, 50.11 52.87 08/05/2023 08:24:22 69.90, 50.06 52.90 2.80 21

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/24/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230725.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 07/24/2023 in txt file.

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