Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 7 9.  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)
 07/11/2021   02:04:11   (  80.43,-179.53) 07/11/2021   02:03:29  (  80.44,-179.38)    3.10                42
 07/11/2021   02:53:38   ( -80.42, -11.92) 07/11/2021   02:54:30  ( -80.42, -11.83)    1.59                52
 07/13/2021   07:37:57   ( -80.38, -83.42) 07/13/2021   07:36:43  ( -80.50, -83.76)   14.50                74
 07/13/2021   08:27:21   (  80.45,  84.88) 07/13/2021   08:27:37  (  80.43,  84.80)    2.06                16
 07/15/2021   14:01:06   ( -80.43,-178.70) 07/15/2021   14:00:49  ( -80.45,-178.73)    2.09                17
 07/15/2021   14:50:32   (  80.43, -11.04) 07/15/2021   14:51:45  (  80.43, -11.04)    0.53                73
 07/17/2021   19:34:49   (  80.45, -81.97) 07/17/2021   19:33:54  (  80.44, -81.84)    2.47                55
 07/17/2021   20:24:16   ( -80.45,  85.70) 07/17/2021   20:24:57  ( -80.43,  85.59)    2.50                41
 07/20/2021   01:57:59   (  80.46,-177.61) 07/20/2021   01:58:02  (  80.44,-177.71)    2.79                 3
 07/22/2021   07:31:44   ( -80.45, -81.18) 07/22/2021   07:31:15  ( -80.45, -81.14)    0.95                29