Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 3 11.  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)
 03/11/2021   22:03:13   ( -80.29,  59.06) 03/11/2021   22:02:54  ( -80.26,  58.94)    3.45                19
 03/11/2021   22:52:40   (  80.26,-133.55) 03/11/2021   22:53:50  (  80.24,-133.48)    2.28                70
 03/14/2021   03:36:55   (  80.30, 155.72) 03/14/2021   03:36:03  (  80.27, 155.62)    3.40                52
 03/14/2021   04:26:23   ( -80.26, -36.97) 03/14/2021   04:27:06  ( -80.25, -36.84)    2.76                43
 03/16/2021   10:00:05   (  80.27,  59.65) 03/16/2021   10:00:15  (  80.27,  59.69)    0.79                10
 03/18/2021   15:33:48   ( -80.27, 156.23) 03/18/2021   15:33:32  ( -80.28, 156.26)    1.44                16
 03/18/2021   16:23:14   (  80.27, -36.14) 03/18/2021   16:24:27  (  80.27, -36.25)    2.13                73
 03/20/2021   21:07:29   (  80.30,-106.92) 03/20/2021   21:06:39  (  80.27,-106.82)    3.27                50
 03/20/2021   21:56:57   ( -80.27,  60.45) 03/20/2021   21:57:44  ( -80.27,  60.42)    0.59                47
 03/23/2021   02:41:14   ( -80.23, -10.95) 03/23/2021   02:40:01  ( -80.37, -11.73)   21.02                73