Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 12 17.  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   12:53:25   (  80.65,  20.42) 12/17/2021   12:53:05  (  80.63,  20.35)    2.76                20
 12/17/2021   13:42:57   ( -80.50,-173.58) 12/17/2021   13:43:58  ( -80.45,-168.25)   98.35                61
 12/19/2021   18:27:09   ( -80.65, 116.97) 12/19/2021   18:26:14  ( -80.63, 117.08)    2.70                55
 12/19/2021   19:16:36   (  80.62, -75.68) 12/19/2021   19:17:09  (  80.63, -75.55)    2.58                33
 12/22/2021   00:50:19   ( -80.65,  21.18) 12/22/2021   00:50:18  ( -80.63,  21.08)    2.46                 1
 12/24/2021   06:24:02   (  80.65, 117.70) 12/24/2021   06:23:18  (  80.64, 117.71)    0.40                44
 12/24/2021   07:13:30   ( -80.62, -74.96) 12/24/2021   07:14:22  ( -80.64, -74.94)    2.28                52
 12/26/2021   12:47:12   (  80.64,  21.84) 12/26/2021   12:47:22  (  80.64,  21.77)    1.25                10
 12/28/2021   18:20:56   ( -80.63, 118.34) 12/28/2021   18:20:30  ( -80.65, 118.34)    2.01                26
 12/28/2021   19:10:22   (  80.63, -74.05) 12/28/2021   19:11:26  (  80.64, -74.18)    2.77                64
 12/30/2021   23:54:38   (  80.65,-144.94) 12/30/2021   23:53:31  (  80.66,-145.07)    2.72                67