Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 8 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 08/10/2021   06:06:50   (   0.05,-128.12) (  -0.06,-128.56)   50.14                80
 08/12/2021   18:02:22   (  -0.05,-128.10) (  -0.06,-128.13)    3.94                80
 08/15/2021   06:00:41   (   0.04,-128.21) (   0.14,-127.73)   54.36                80
 08/16/2021   18:22:11   (  -0.01,-128.15) (   0.92,-132.28)  471.15                80
 08/17/2021   17:58:52   (  -0.03,-128.16) (  -0.22,-127.29)   98.72                80
 08/19/2021   06:20:31   (  -0.00,-128.25) (  -0.79,-131.89)  414.34                80
 08/20/2021   05:57:11   (   0.02,-128.25) (   0.30,-126.89)  154.72                80
 08/21/2021   18:18:41   (   0.01,-128.18) (   0.75,-131.44)  371.95                80
 08/22/2021   17:55:21   (  -0.02,-128.19) (  -0.39,-126.45)  197.59                80