Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 5 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)
 05/05/2021   06:14:19   (  -0.02,-127.78) (  -0.55,-130.21)  275.95                80
 05/06/2021   05:51:00   (  -0.03,-127.81) (   0.57,-125.21)  297.06                80
 05/07/2021   18:09:51   (   0.03,-127.93) (   0.43,-129.78)  210.16                80
 05/08/2021   17:51:52   (   0.03,-127.97) (  -0.69,-124.78)  363.47                80
 05/10/2021   06:10:53   (  -0.03,-127.97) (  -0.32,-129.39)  160.56                80
 05/11/2021   05:47:33   (  -0.03,-128.00) (   0.80,-124.39)  412.03                80
 05/12/2021   18:06:24   (   0.03,-128.11) (   0.24,-128.95)   96.71                80
 05/13/2021   17:48:24   (   0.03,-128.14) (  -0.87,-123.95)  476.19                80
 05/15/2021   06:07:25   (  -0.02,-128.14) (  -0.13,-128.56)   48.51                80
 05/17/2021   18:05:37   (   0.02,-128.24) (  -0.01,-128.13)   12.47                80