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: 11/21/2023
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 11/22/2023 15:17:59 -70.94, 125.09 88.99 11/22/2023 15:19:05 -70.81, 127.74 89.13 97.78 66
2 11/22/2023 16:08:25 69.89, -65.93 89.95 11/22/2023 16:08:47 69.89, -65.96 89.95 1.15 22
3 11/22/2023 16:59:06 -69.79, 101.53 90.14 11/22/2023 16:58:16 -69.78, 101.52 90.16 1.06 50
4 11/25/2023 07:34:38 -70.02,-117.67 89.38 11/25/2023 07:35:50 -70.00,-117.58 89.40 3.83 72
5 11/25/2023 08:25:21 69.86, 49.88 90.47 11/25/2023 08:25:18 69.84, 49.84 90.45 2.04 3
6 11/25/2023 09:16:02 -69.70,-142.57 89.69 11/25/2023 09:14:48 -69.74,-142.67 89.65 5.33 74
7 11/27/2023 23:51:34 -69.93, -1.78 88.96 11/27/2023 23:52:22 -69.94, -1.80 88.96 0.59 48
8 11/28/2023 00:42:18 69.83, 165.68 90.94 11/28/2023 00:41:49 69.83, 165.69 90.94 0.51 29
9 11/30/2023 15:18:04 70.81, -54.72 92.38 11/30/2023 15:19:11 70.66, -52.50 92.22 83.01 67
10 11/30/2023 16:08:31 -69.91, 114.01 88.53 11/30/2023 16:08:53 -69.90, 114.03 88.54 1.12 22
11 11/30/2023 16:59:15 69.81, -78.53 91.38 11/30/2023 16:58:20 69.79, -78.48 91.36 2.61 55
12 12/03/2023 07:34:45 69.95, 62.40 91.92 12/03/2023 07:35:54 69.95, 62.34 91.92 2.19 69
13 12/03/2023 08:25:27 -69.84,-130.12 88.19 12/03/2023 08:25:24 -69.85,-130.17 88.18 1.84 3
14 12/03/2023 09:16:05 69.48, 37.72 91.45 12/03/2023 09:14:53 69.57, 37.09 91.55 26.54 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/21/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231121.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 11/21/2023 in txt file.

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