Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 4 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 04/15/2021   16:56:33   (   0.11,-128.05) (   0.72,-130.98)  332.43                80
 04/16/2021   16:38:32   (   0.11,-128.02) (  -0.35,-125.99)  231.40                80
 04/18/2021   04:57:32   (  -0.10,-127.87) (  -0.72,-130.62)  313.00                80
 04/19/2021   04:34:11   (  -0.10,-127.84) (   0.36,-125.64)  250.26                80
 04/20/2021   16:53:03   (   0.10,-127.88) (   0.63,-130.24)  269.13                80
 04/21/2021   16:35:02   (   0.10,-127.84) (  -0.44,-125.26)  294.09                80
 04/23/2021   04:54:02   (  -0.09,-127.69) (  -0.56,-129.90)  250.89                80
 04/24/2021   04:30:42   (  -0.10,-127.65) (   0.51,-124.91)  311.95                80
 04/25/2021   16:49:33   (   0.09,-127.68) (   0.47,-129.52)  208.34                80
 04/26/2021   16:31:33   (   0.10,-127.64) (  -0.60,-124.53)  354.39                80