Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 4 21.  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)
 04/21/2021   07:06:49   ( -80.35, -76.43) 04/21/2021   07:06:28  ( -80.33, -76.34)    2.94                21
 04/21/2021   07:56:16   (  80.32,  90.93) 04/21/2021   07:57:26  (  80.32,  90.94)    0.61                70
 04/23/2021   12:40:31   (  80.36,  20.27) 04/23/2021   12:39:38  (  80.34,  20.24)    2.70                53
 04/23/2021   13:29:59   ( -80.33,-172.40) 04/23/2021   13:30:39  ( -80.32,-172.25)    2.99                40
 04/25/2021   19:03:41   (  80.34, -75.74) 04/25/2021   19:03:50  (  80.35, -75.84)    1.97                 9
 04/28/2021   00:37:24   ( -80.35,  20.91) 04/28/2021   00:37:02  ( -80.35,  20.92)    0.28                22
 04/28/2021   01:26:50   (  80.35,-171.47) 04/28/2021   01:28:01  (  80.33,-171.61)    2.94                71
 04/30/2021   06:11:06   (  80.35, 117.49) 04/30/2021   06:10:13  (  80.35, 117.64)    2.74                53
 04/30/2021   07:00:33   ( -80.32, -75.13) 04/30/2021   07:01:12  ( -80.35, -75.05)    3.07                39
 05/02/2021   12:34:14   (  80.35,  21.73) 05/02/2021   12:34:23  (  80.34,  21.84)    2.45                 9
 05/04/2021   18:07:57   ( -80.36, 118.36) 05/04/2021   18:07:34  ( -80.36, 118.33)    0.57                23