Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 4 5.  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   (  80.29,  -8.15) 04/05/2021   14:32:03  (  80.31,  -8.07)    2.01                 8
 04/07/2021   20:05:38   ( -80.32,  88.65) 04/07/2021   20:05:20  ( -80.32,  88.48)    3.11                18
 04/07/2021   20:55:05   (  80.29,-104.00) 04/07/2021   20:56:15  (  80.31,-104.06)    2.64                70
 04/10/2021   01:39:21   (  80.31,-174.86) 04/10/2021   01:38:27  (  80.32,-174.70)    3.25                54
 04/10/2021   02:28:48   ( -80.31,  -7.20) 04/10/2021   02:29:31  ( -80.31,  -7.26)    1.31                43
 04/12/2021   08:02:31   (  80.30,  89.25) 04/12/2021   08:02:39  (  80.32,  89.30)    2.47                 8
 04/14/2021   13:36:14   ( -80.33,-173.95) 04/14/2021   13:35:55  ( -80.33,-174.12)    3.27                19
 04/14/2021   14:25:40   (  80.32,  -6.35) 04/14/2021   14:26:50  (  80.30,  -6.37)    1.97                70
 04/16/2021   19:09:56   (  80.34, -77.26) 04/16/2021   19:09:03  (  80.33, -77.35)    1.84                53
 04/16/2021   19:59:24   ( -80.32,  90.15) 04/16/2021   20:00:06  ( -80.32,  90.07)    1.82                42