Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 8 13.  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)
 08/15/2021   06:00:41   (   0.04,-128.22) (   0.16,-127.73)   55.24                80
 08/16/2021   18:22:12   (  -0.00,-128.16) (   0.90,-132.29)  469.90                80
 08/17/2021   17:58:52   (  -0.03,-128.17) (  -0.24,-127.30)  100.18                80
 08/19/2021   06:20:30   (  -0.01,-128.26) (  -0.83,-131.88)  412.81                80
 08/20/2021   05:57:11   (   0.02,-128.27) (   0.31,-126.89)  156.36                80
 08/21/2021   18:18:41   (   0.01,-128.20) (   0.74,-131.45)  369.88                80
 08/22/2021   17:55:22   (  -0.01,-128.21) (  -0.41,-126.46)  199.84                80
 08/24/2021   06:17:01   (  -0.02,-128.30) (  -0.61,-131.05)  312.86                80
 08/25/2021   05:53:42   (   0.01,-128.31) (   0.53,-126.07)  256.34                80
 08/26/2021   18:15:11   (   0.03,-128.24) (   0.56,-130.61)  270.32                80