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,-169.85 59.90 04/17/2023 23:02:15 70.51,-168.67 59.78 44.64 70
2 04/17/2023 23:51:39 -70.08, -1.74 120.64 04/17/2023 23:51:51 -70.06, -1.68 120.67 3.32 12
3 04/18/2023 00:42:22 69.91, 165.82 59.17 04/18/2023 00:41:19 69.91, 165.75 59.17 2.94 63
4 04/20/2023 15:17:45 70.11, -53.32 58.48 04/20/2023 15:18:50 70.11, -53.37 58.47 1.82 65
5 04/20/2023 16:08:27 -70.03, 114.13 121.63 04/20/2023 16:08:20 -70.00, 114.11 121.66 3.42 7
6 04/20/2023 16:59:04 69.54, -77.84 57.86 04/20/2023 16:57:53 69.56, -78.85 57.91 39.00 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 3.32 43
8 04/23/2023 08:25:16 -69.99,-130.02 122.58 04/23/2023 08:24:48 -70.00,-130.01 122.56 1.24 28
9 04/25/2023 23:51:23 70.05, 178.35 56.62 04/25/2023 23:51:46 70.06, 178.32 56.63 1.40 23
10 04/26/2023 00:42:05 -69.97, -14.20 123.48 04/26/2023 00:41:16 -69.96, -14.19 123.49 0.96 49
11 04/28/2023 15:17:32 -70.36, 126.36 123.91 04/28/2023 15:18:43 -70.31, 126.91 123.98 21.48 71
12 04/28/2023 16:08:12 70.05, -65.84 55.76 04/28/2023 16:08:13 70.03, -65.84 55.74 2.13 1
13 04/28/2023 16:58:53 -69.90, 101.69 124.41 04/28/2023 16:57:43 -69.92, 101.64 124.38 2.97 70
14 05/01/2023 07:34:15 -70.10,-117.44 125.01 05/01/2023 07:35:11 -70.12,-117.47 125.00 2.17 56
15 05/01/2023 08:24:59 70.00, 50.02 54.88 05/01/2023 08:24:38 70.00, 50.01 54.88 0.60 21

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/17/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230418.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