Simultaneous Nadir Overpasses (SNOs) between METOP-C and LANDSAT-8
TLE Epoch: 2021 4 18.  Predictions up to the next  14.0 days:

     Date     Time(METOP-C) METOP-C Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 04/20/2021   22:01:48   (  81.08,-111.70) 04/20/2021   22:02:31  (  81.08,-111.84)    2.40                43
 04/20/2021   22:52:27   ( -81.10,  56.01) 04/20/2021   22:51:57  ( -81.11,  56.12)    2.06                30
 04/23/2021   17:36:11   (  81.08, -45.54) 04/23/2021   17:36:45  (  81.08, -45.49)    0.78                34
 04/23/2021   18:26:49   ( -81.10, 122.57) 04/23/2021   18:26:11  ( -81.10, 122.49)    1.44                38
 04/26/2021   13:10:31   (  81.09,  21.35) 04/26/2021   13:10:57  (  81.09,  21.18)    3.04                26
 04/26/2021   14:01:11   ( -81.10,-171.25) 04/26/2021   14:00:24  ( -81.09,-171.17)    1.35                47
 04/29/2021   08:44:54   (  81.08,  87.48) 04/29/2021   08:45:11  (  81.08,  87.46)    0.42                17
 04/29/2021   09:35:32   ( -81.11,-104.34) 04/29/2021   09:34:37  ( -81.11,-104.51)    3.02                55
 05/02/2021   04:19:17   (  81.07, 153.59) 05/02/2021   04:19:25  (  81.07, 153.70)    1.96                 8