Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and NOAA-20 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 12/31/1999
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Distance(km) Time Diff (sec)
1 12/31/1999 00:00:00 -90.00, 171.02 -nan 11/24/-4713 12:00:00 -90.00, 171.02 -nan 0.00 0
2 01/01/2000 03:46:39 -90.00, 113.21 -nan 11/24/-4713 12:00:00 -90.00, 113.21 -nan 0.00 0
3 01/02/2000 07:33:18 -90.00, 55.41 -nan 11/24/-4713 12:00:00 -90.00, 55.41 -nan 0.00 0
4 01/03/2000 11:19:58 -90.00, -2.40 -nan 11/24/-4713 12:00:00 -90.00, -2.40 -nan 0.00 0
5 01/04/2000 15:06:37 -90.00, -60.20 -nan 11/24/-4713 12:00:00 -90.00, -60.20 -nan 0.00 0
6 01/05/2000 18:53:17 -90.00,-118.01 -nan 11/24/-4713 12:00:00 -90.00,-118.01 -nan 0.00 0
7 01/06/2000 22:39:56 -90.00,-175.81 -nan 11/24/-4713 12:00:00 -90.00,-175.81 -nan 0.00 0
8 01/08/2000 02:26:36 -90.00, 126.38 -nan 11/24/-4713 12:00:00 -90.00, 126.38 -nan 0.00 0
9 01/09/2000 06:13:15 -90.00, 68.58 -nan 11/24/-4713 12:00:00 -90.00, 68.58 -nan 0.00 0
10 01/10/2000 09:59:55 -90.00, 10.77 -nan 11/24/-4713 12:00:00 -90.00, 10.77 -nan 0.00 0
11 01/11/2000 13:46:34 -90.00, -47.03 -nan 11/24/-4713 12:00:00 -90.00, -47.03 -nan 0.00 0
12 01/12/2000 17:33:14 -90.00,-104.84 -nan 11/24/-4713 12:00:00 -90.00,-104.84 -nan 0.00 0

Figure of NOAA-21 and NOAA-20 satellite orbits during SNOs since TLE Epoch: 12/31/1999
SNOs_Map_NOAA-21_NOAA-20_20240711.jpg

Download SNOs between NOAA-21 and NOAA-20 since TLE EPOCH: 12/31/1999 in txt file.

Historial Predications of SNOs between NOAA-21 and NOAA-20