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: 4/10/2023
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 04/12/2023 15:17:59 -70.09, 126.67 118.71 04/12/2023 15:18:54 -70.10, 126.62 118.71 1.98 55
2 04/12/2023 16:08:43 69.98, -65.84 61.17 04/12/2023 16:08:21 69.99, -65.88 61.18 2.20 22
3 04/12/2023 16:59:11 -69.15, 102.67 119.71 04/12/2023 16:58:03 -69.22, 100.71 119.58 78.03 68
4 04/15/2023 07:34:48 -70.06,-117.49 119.71 04/15/2023 07:35:20 -70.06,-117.54 119.71 1.75 32
5 04/15/2023 08:25:32 69.95, 49.98 60.16 04/15/2023 08:24:47 69.96, 49.95 60.17 1.31 45
6 04/17/2023 23:01:02 70.45,-169.62 59.76 04/17/2023 23:02:13 70.33,-168.91 59.61 29.94 71
7 04/17/2023 23:51:38 -70.04, -1.68 120.69 04/17/2023 23:51:46 -70.05, -1.67 120.68 1.12 8
8 04/18/2023 00:42:22 69.93, 165.80 59.19 04/18/2023 00:41:13 69.94, 165.82 59.21 1.20 69
9 04/20/2023 15:17:46 70.12, -53.33 58.49 04/20/2023 15:18:42 70.11, -53.33 58.47 1.12 56
10 04/20/2023 16:08:28 -70.03, 114.13 121.63 04/20/2023 16:08:12 -70.00, 114.15 121.65 2.94 16
11 04/20/2023 16:58:59 69.23, -77.40 57.54 04/20/2023 16:57:50 69.28, -79.18 57.64 70.42 69
12 04/23/2023 07:34:35 70.07, 62.54 57.52 04/23/2023 07:35:07 70.09, 62.53 57.53 1.77 32
13 04/23/2023 08:25:17 -69.97,-130.00 122.59 04/23/2023 08:24:37 -69.98,-129.99 122.59 0.74 40

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/10/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230411.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/10/2023 in txt file.

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