Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 12 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)
 12/10/2021   19:22:48   (  80.64, -77.05) 12/10/2021   19:22:52  (  80.62, -77.09)    2.38                 4
 12/13/2021   00:56:32   ( -80.65,  19.59) 12/13/2021   00:56:02  ( -80.63,  19.50)    2.72                30
 12/13/2021   01:45:59   (  80.62,-173.07) 12/13/2021   01:46:56  (  80.62,-172.94)    2.39                57
 12/15/2021   06:30:17   (  80.59, 115.58) 12/15/2021   06:29:03  (  80.65, 115.57)    6.84                74
 12/15/2021   07:19:43   ( -80.62, -76.43) 12/15/2021   07:20:06  ( -80.62, -76.38)    0.96                23
 12/17/2021   12:53:26   (  80.63,  20.17) 12/17/2021   12:53:06  (  80.64,  20.06)    2.39                20
 12/17/2021   13:42:57   ( -80.51,-173.45) 12/17/2021   13:43:59  ( -80.46,-168.48)   91.60                62
 12/19/2021   18:27:10   ( -80.63, 116.79) 12/19/2021   18:26:15  ( -80.64, 116.85)    1.23                55
 12/19/2021   19:16:36   (  80.63, -75.59) 12/19/2021   19:17:09  (  80.62, -75.47)    2.38                33