Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 5 3.  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)
 05/04/2021   18:07:57   ( -80.37, 118.45) 05/04/2021   18:07:34  ( -80.36, 118.35)    2.28                23
 05/04/2021   18:57:24   (  80.34, -74.19) 05/04/2021   18:58:35  (  80.35, -74.23)    1.19                71
 05/06/2021   23:41:39   (  80.37,-144.98) 05/06/2021   23:40:47  (  80.37,-145.06)    1.63                52
 05/07/2021   00:31:06   ( -80.37,  22.66) 05/07/2021   00:31:44  ( -80.35,  22.64)    2.89                38
 05/09/2021   06:04:48   (  80.37, 119.20) 05/09/2021   06:04:58  (  80.37, 119.05)    2.88                10
 05/11/2021   11:38:31   ( -80.37,-144.25) 05/11/2021   11:38:06  ( -80.37,-144.12)    2.49                25
 05/11/2021   12:27:57   (  80.36,  23.37) 05/11/2021   12:29:08  (  80.35,  23.47)    2.90                71
 05/13/2021   17:12:12   (  80.39, -47.47) 05/13/2021   17:11:20  (  80.37, -47.42)    2.29                52
 05/13/2021   18:01:40   ( -80.36, 119.91) 05/13/2021   18:02:17  ( -80.37, 119.80)    2.38                37