Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 8 4.  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)
 08/05/2021   06:27:41   (   0.04,-128.02) (   0.86,-124.27)  427.11                80
 08/05/2021   18:51:35   (  -0.01,-127.96) (   0.28,-129.42)  165.42                80
 08/07/2021   18:36:45   (  -0.03,-128.00) (  -0.38,-126.47)  174.88                80
 08/08/2021   07:00:49   (  -0.00,-128.09) (  -0.76,-131.65)  405.17                80
 08/10/2021   06:48:39   (   0.01,-128.12) (  -0.10,-128.70)   65.52                80
 08/12/2021   06:33:48   (   0.02,-128.15) (   0.51,-125.74)  273.80                80
 08/12/2021   18:57:43   (   0.01,-128.08) (   0.63,-130.89)  320.00                80
 08/14/2021   18:42:53   (   0.00,-128.10) (  -0.04,-127.94)   18.82                80
 08/16/2021   18:30:42   (  -0.00,-128.12) (  -0.64,-124.98)  356.92                80
 08/17/2021   06:54:47   (  -0.03,-128.21) (  -0.42,-130.18)  222.92                80