Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 4 6.  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)
 04/06/2021   06:14:19   (  -0.12,-128.18) (  -0.54,-130.18)  227.09                80
 04/07/2021   05:51:00   (  -0.12,-128.16) (   0.56,-125.19)  339.69                80
 04/08/2021   18:09:52   (   0.11,-128.23) (   0.46,-129.75)  173.33                80
 04/09/2021   17:51:53   (   0.12,-128.21) (  -0.64,-124.75)  393.79                80
 04/11/2021   06:10:52   (  -0.11,-128.08) (  -0.42,-129.34)  143.76                80
 04/12/2021   05:47:34   (  -0.12,-128.06) (   0.74,-124.36)  422.87                80
 04/13/2021   18:06:26   (   0.11,-128.12) (   0.27,-128.92)   90.98                80
 04/14/2021   17:48:26   (   0.11,-128.10) (  -0.84,-123.93)  475.59                80
 04/16/2021   06:07:26   (  -0.10,-127.96) (  -0.24,-128.51)   62.83                80
 04/18/2021   18:02:59   (   0.09,-127.98) (   0.13,-128.08)   12.65                80