Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 12 16.  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)
 12/17/2021   12:53:26   (  80.63,  20.22) 12/17/2021   12:53:06  (  80.64,  20.13)    1.73                20
 12/17/2021   13:42:57   ( -80.51,-173.45) 12/17/2021   13:43:58  ( -80.44,-168.11)   98.63                61
 12/19/2021   18:27:10   ( -80.63, 116.78) 12/19/2021   18:26:15  ( -80.64, 116.87)    1.81                55
 12/19/2021   19:16:36   (  80.63, -75.56) 12/19/2021   19:17:09  (  80.62, -75.40)    3.03                33
 12/22/2021   00:50:20   ( -80.63,  20.99) 12/22/2021   00:50:19  ( -80.64,  20.88)    2.24                 1
 12/24/2021   06:24:02   (  80.66, 117.84) 12/24/2021   06:23:18  (  80.64, 117.86)    2.37                44
 12/24/2021   07:13:30   ( -80.63, -74.82) 12/24/2021   07:14:22  ( -80.63, -74.79)    0.71                52
 12/26/2021   12:47:12   (  80.65,  21.98) 12/26/2021   12:47:22  (  80.64,  21.93)    1.84                10
 12/28/2021   18:20:56   ( -80.65, 118.49) 12/28/2021   18:20:30  ( -80.64, 118.52)    0.57                26