Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 1 18.  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)
 01/19/2021   07:32:05   (  80.20,  96.19) 01/19/2021   07:31:02  (  80.17,  96.26)    3.12                63
 01/19/2021   08:21:33   ( -80.16, -96.49) 01/19/2021   08:21:57  ( -80.18, -96.56)    2.37                24
 01/21/2021   13:55:15   (  80.17,   0.17) 01/21/2021   13:55:16  (  80.19,   0.04)    3.23                 1
 01/23/2021   19:28:58   ( -80.18,  96.79) 01/23/2021   19:28:23  ( -80.18,  96.93)    2.74                35
 01/23/2021   20:18:24   (  80.18, -95.56) 01/23/2021   20:19:28  (  80.16, -95.57)    1.36                64
 01/26/2021   01:02:40   (  80.18,-166.61) 01/26/2021   01:01:42  (  80.19,-166.48)    2.85                58
 01/26/2021   01:52:07   ( -80.18,   1.05) 01/26/2021   01:52:36  ( -80.18,   1.00)    1.02                29
 01/28/2021   07:25:49   (  80.18,  97.62) 01/28/2021   07:25:55  (  80.19,  97.55)    1.99                 6
 01/30/2021   12:59:32   ( -80.19,-165.77) 01/30/2021   12:59:03  ( -80.21,-165.83)    2.55                29