Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 4 4.  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)
 04/04/2021   17:55:20   (   0.12,-128.31) (  -0.48,-125.59)  310.57                80
 04/06/2021   06:14:19   (  -0.12,-128.19) (  -0.57,-130.17)  226.92                80
 04/07/2021   05:50:59   (  -0.12,-128.17) (   0.53,-125.18)  339.95                80
 04/08/2021   18:09:53   (   0.11,-128.23) (   0.44,-129.75)  172.94                80
 04/09/2021   17:51:53   (   0.12,-128.22) (  -0.67,-124.76)  394.30                80
 04/11/2021   06:10:53   (  -0.11,-128.09) (  -0.39,-129.35)  142.99                80
 04/12/2021   05:47:33   (  -0.12,-128.07) (   0.71,-124.35)  423.69                80
 04/13/2021   18:06:25   (   0.11,-128.13) (   0.30,-128.92)   90.01                80
 04/14/2021   17:48:26   (   0.11,-128.11) (  -0.81,-123.92)  476.66                80
 04/16/2021   06:07:26   (  -0.10,-127.98) (  -0.21,-128.52)   61.54                80