Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 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)
 01/16/2021   06:36:29   (  -0.07,-128.01) (   0.42,-125.70)  263.10                80
 01/16/2021   18:55:04   (   0.03,-128.03) (   0.64,-130.86)  322.54                80
 01/18/2021   18:42:52   (   0.04,-127.98) (   0.04,-127.90)    9.65                80
 01/20/2021   18:33:20   (   0.05,-127.94) (  -0.61,-124.94)  341.00                80
 01/21/2021   06:52:03   (  -0.01,-127.90) (  -0.48,-130.14)  254.47                80
 01/23/2021   06:42:30   (  -0.01,-127.84) (   0.12,-127.17)   76.39                80
 01/25/2021   06:30:17   (  -0.02,-127.79) (   0.72,-124.20)  406.70                80
 01/25/2021   18:48:53   (  -0.02,-127.80) (   0.33,-129.37)  179.01                80
 01/27/2021   18:39:20   (  -0.02,-127.73) (  -0.27,-126.40)  150.41                80
 01/28/2021   06:58:05   (   0.06,-127.68) (  -0.75,-131.61)  446.30                80
 01/29/2021   18:27:07   (  -0.01,-127.66) (  -0.88,-123.44)  479.44                80