Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 5 11.  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)
 05/11/2021   11:38:37   ( -80.37,-143.81) 05/11/2021   11:38:05  ( -80.36,-143.92)    2.30                32
 05/11/2021   12:28:04   (  80.34,  23.56) 05/11/2021   12:29:07  (  80.33,  23.72)    3.07                63
 05/13/2021   17:12:22   (  80.37, -47.18) 05/13/2021   17:11:19  (  80.36, -47.19)    1.60                63
 05/13/2021   18:01:50   ( -80.34, 120.16) 05/13/2021   18:02:15  ( -80.34, 120.31)    2.78                25
 05/15/2021   23:35:35   (  80.35,-143.24) 05/15/2021   23:35:30  (  80.36,-143.17)    1.98                 5
 05/18/2021   05:09:21   ( -80.35, -46.64) 05/18/2021   05:08:37  ( -80.37, -46.56)    2.75                44
 05/18/2021   05:58:47   (  80.35, 121.00) 05/18/2021   05:59:40  (  80.34, 121.15)    2.87                53
 05/20/2021   10:43:05   (  80.38,  50.21) 05/20/2021   10:41:52  (  80.37,  50.15)    1.25                73
 05/20/2021   11:32:33   ( -80.35,-142.40) 05/20/2021   11:32:47  ( -80.36,-142.38)    1.31                14
 05/22/2021   17:06:17   (  80.38, -45.59) 05/22/2021   17:06:02  (  80.36, -45.59)    1.70                15
 05/22/2021   17:55:45   ( -80.35, 121.81) 05/22/2021   17:56:57  ( -80.36, 121.79)    0.46                72
 05/24/2021   22:40:03   ( -80.38,  51.00) 05/24/2021   22:39:08  ( -80.37,  51.00)    0.62                55