Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 4 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 04/17/2021   18:38:57   (   0.08,-127.98) (  -0.24,-126.45)  173.55                80
 04/18/2021   07:00:21   (  -0.07,-127.89) (  -0.87,-131.64)  426.80                80
 04/20/2021   06:48:08   (  -0.07,-127.81) (  -0.28,-128.68)   98.70                80
 04/22/2021   06:33:16   (  -0.07,-127.74) (   0.36,-125.72)  229.14                80
 04/22/2021   18:54:31   (   0.06,-127.79) (   0.75,-130.88)  352.30                80
 04/24/2021   18:42:19   (   0.07,-127.71) (   0.10,-127.93)   24.74                80
 04/26/2021   18:32:46   (   0.07,-127.62) (  -0.49,-124.96)  302.36                80
 04/27/2021   06:54:10   (  -0.06,-127.54) (  -0.60,-130.16)  297.39                80
 04/29/2021   06:39:17   (  -0.06,-127.44) (  -0.01,-127.19)   28.57                80