Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 4 4.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 04/05/2021   14:31:55   (  80.30,  -8.12) 04/05/2021   14:32:03  (  80.31,  -8.04)    1.75                 8
 04/07/2021   20:05:38   ( -80.32,  88.68) 04/07/2021   20:05:20  ( -80.32,  88.52)    3.05                18
 04/07/2021   20:55:05   (  80.29,-103.98) 04/07/2021   20:56:15  (  80.31,-104.03)    2.08                70
 04/10/2021   01:39:21   (  80.31,-174.84) 04/10/2021   01:38:27  (  80.32,-174.66)    3.40                54
 04/10/2021   02:28:48   ( -80.32,  -7.17) 04/10/2021   02:29:31  ( -80.30,  -7.22)    1.59                43
 04/12/2021   08:02:31   (  80.30,  89.27) 04/12/2021   08:02:39  (  80.32,  89.34)    2.25                 8
 04/14/2021   13:36:14   ( -80.33,-173.93) 04/14/2021   13:35:55  ( -80.33,-174.07)    2.80                19
 04/14/2021   14:25:40   (  80.32,  -6.33) 04/14/2021   14:26:50  (  80.30,  -6.33)    2.35                70
 04/16/2021   19:09:56   (  80.34, -77.25) 04/16/2021   19:09:03  (  80.33, -77.31)    1.51                53