Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 6 19.  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)
 06/20/2021   21:32:13   (  80.40,-111.84) 06/20/2021   21:32:10  (  80.41,-111.85)    1.70                 3
 06/23/2021   03:05:57   ( -80.43, -14.97) 06/23/2021   03:05:16  ( -80.41, -15.01)    2.02                41
 06/23/2021   03:55:24   (  80.40, 152.42) 06/23/2021   03:56:18  (  80.39, 152.58)    3.14                54
 06/25/2021   08:39:41   (  80.43,  81.66) 06/25/2021   08:38:28  (  80.42,  81.69)    2.04                73
 06/25/2021   09:29:09   ( -80.40,-111.03) 06/25/2021   09:29:26  ( -80.42,-111.09)    2.22                17
 06/27/2021   15:02:53   (  80.40, -14.43) 06/27/2021   15:02:37  (  80.42, -14.28)    3.28                16
 06/27/2021   15:52:18   ( -80.47, 153.84) 06/27/2021   15:53:32  ( -80.35, 154.15)   13.80                74
 06/29/2021   20:36:37   ( -80.43,  82.44) 06/29/2021   20:35:45  ( -80.42,  82.41)    1.40                52
 06/29/2021   21:26:04   (  80.40,-110.23) 06/29/2021   21:26:46  (  80.42,-110.27)    1.89                42