Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 4 7.  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)
 04/07/2021   05:50:59   (  -0.12,-128.16) (   0.52,-125.18)  339.66                80
 04/08/2021   18:09:53   (   0.11,-128.23) (   0.45,-129.75)  173.50                80
 04/09/2021   17:51:53   (   0.12,-128.21) (  -0.66,-124.76)  393.56                80
 04/11/2021   06:10:52   (  -0.11,-128.08) (  -0.40,-129.34)  144.02                80
 04/12/2021   05:47:33   (  -0.12,-128.06) (   0.70,-124.35)  422.52                80
 04/13/2021   18:06:25   (   0.11,-128.12) (   0.31,-128.91)   91.45                80
 04/14/2021   17:48:26   (   0.11,-128.09) (  -0.80,-123.92)  475.07                80
 04/16/2021   06:07:26   (  -0.10,-127.96) (  -0.22,-128.52)   63.41                80
 04/18/2021   18:02:59   (   0.09,-127.97) (   0.11,-128.09)   13.38                80