Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 19.  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)
 01/20/2021   18:33:21   (   0.05,-127.93) (  -0.60,-124.95)  340.08                80
 01/21/2021   06:52:04   (  -0.01,-127.89) (  -0.51,-130.14)  255.80                80
 01/23/2021   06:42:33   (  -0.01,-127.84) (   0.14,-127.19)   74.23                80
 01/25/2021   06:30:22   (  -0.02,-127.78) (   0.73,-124.22)  403.72                80
 01/25/2021   18:48:57   (  -0.02,-127.79) (   0.34,-129.39)  182.02                80
 01/27/2021   18:39:26   (  -0.02,-127.72) (  -0.31,-126.44)  146.58                80
 01/28/2021   06:58:10   (   0.06,-127.67) (  -0.80,-131.63)  450.49                80
 01/29/2021   18:27:14   (  -0.01,-127.65) (  -0.91,-123.47)  474.80                80
 01/30/2021   06:45:58   (   0.05,-127.59) (  -0.20,-128.66)  122.28                80
 02/01/2021   06:36:26   (   0.04,-127.51) (   0.40,-125.70)  205.56                80
 02/01/2021   18:55:03   (  -0.08,-127.53) (   0.61,-130.88)  380.02                80