Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 17.  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)
 01/18/2021   18:45:32   (   0.04,-127.98) (   0.01,-127.91)    9.44                80
 01/20/2021   18:33:19   (   0.05,-127.94) (  -0.59,-124.94)  340.79                80
 01/21/2021   06:52:03   (  -0.01,-127.90) (  -0.51,-130.13)  254.76                80
 01/23/2021   06:42:31   (  -0.01,-127.84) (   0.16,-127.18)   76.03                80
 01/25/2021   06:30:18   (  -0.02,-127.78) (   0.76,-124.21)  406.19                80
 01/25/2021   18:48:54   (  -0.02,-127.80) (   0.29,-129.38)  179.50                80
 01/27/2021   18:39:21   (  -0.02,-127.73) (  -0.31,-126.41)  149.80                80
 01/28/2021   06:58:05   (   0.06,-127.67) (  -0.78,-131.61)  446.95                80
 01/29/2021   18:27:08   (  -0.01,-127.65) (  -0.92,-123.45)  478.74                80
 01/30/2021   06:45:52   (   0.05,-127.60) (  -0.17,-128.64)  118.00                80