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: 4/17/2023
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 04/17/2023 23:01:05 70.59,-169.86 59.91 04/17/2023 23:02:15 70.50,-168.67 59.78 44.88 70
2 04/17/2023 23:51:38 -70.03, -1.67 120.69 04/17/2023 23:51:51 -70.06, -1.68 120.67 2.82 13
3 04/18/2023 00:42:22 69.92, 165.82 59.18 04/18/2023 00:41:19 69.90, 165.74 59.17 3.34 63
4 04/20/2023 15:17:45 70.12, -53.32 58.48 04/20/2023 15:18:50 70.11, -53.37 58.46 1.98 65
5 04/20/2023 16:08:27 -70.03, 114.12 121.62 04/20/2023 16:08:19 -70.05, 114.18 121.61 3.24 8
6 04/20/2023 16:59:04 69.55, -77.85 57.87 04/20/2023 16:57:53 69.56, -78.85 57.91 38.89 71
7 04/23/2023 07:34:35 70.13, 62.44 57.59 04/23/2023 07:35:18 70.11, 62.51 57.56 3.40 43
8 04/23/2023 08:25:16 -69.99,-130.02 122.57 04/23/2023 08:24:48 -70.00,-130.01 122.56 1.59 28
9 04/25/2023 23:51:23 70.05, 178.35 56.62 04/25/2023 23:51:46 70.07, 178.34 56.64 2.29 23
10 04/26/2023 00:42:05 -69.96, -14.19 123.49 04/26/2023 00:41:16 -69.97, -14.18 123.48 0.66 49
11 04/28/2023 15:17:32 -70.35, 126.37 123.92 04/28/2023 15:18:44 -70.27, 126.86 124.02 20.49 72
12 04/28/2023 16:08:12 70.04, -65.84 55.75 04/28/2023 16:08:13 70.05, -65.82 55.76 0.87 1
13 04/28/2023 16:58:54 -69.95, 101.62 124.36 04/28/2023 16:57:43 -69.94, 101.67 124.36 1.85 71

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/17/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230417.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/17/2023 in txt file.

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