Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 10 3.  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)
 10/03/2021   05:49:06   (   0.33,-127.77) (   1.08,-124.41)  381.94                80
 10/04/2021   18:05:19   (  -0.34,-127.82) (  -0.10,-128.98)  131.74                80
 10/05/2021   17:47:20   (  -0.33,-127.86) (  -1.22,-123.99)  441.40                80
 10/07/2021   06:03:42   (   0.35,-127.91) (   0.20,-128.59)   77.42                80
 10/08/2021   05:45:44   (   0.34,-127.94) (   1.33,-123.60)  495.22                80
 10/09/2021   18:01:56   (  -0.35,-127.98) (  -0.33,-128.16)   19.90                80
 10/12/2021   06:02:59   (   0.35,-128.05) (   0.39,-127.76)   32.62                80
 10/13/2021   18:19:11   (  -0.35,-128.08) (   0.61,-132.32)  483.63                80
 10/14/2021   18:01:13   (  -0.34,-128.10) (  -0.52,-127.33)   88.14                80
 10/16/2021   06:17:35   (   0.35,-128.14) (  -0.47,-131.93)  431.67                80