Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 4 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 04/15/2021   10:01:48   (  -0.00,-128.01) (   0.20,-128.84)   95.07                80
 04/16/2021   09:40:25   (  -0.01,-127.98) (  -0.85,-124.32)  417.06                80
 04/17/2021   22:02:21   (  -0.00,-127.93) (  -0.38,-129.62)  193.05                80
 04/18/2021   21:46:17   (   0.00,-127.90) (   0.61,-125.09)  319.45                80
 04/20/2021   10:08:05   (   0.01,-127.85) (   0.57,-130.36)  286.63                80
 04/21/2021   09:46:40   (   0.00,-127.81) (  -0.42,-125.83)  224.84                80
 04/22/2021   22:08:38   (  -0.02,-127.74) (  -0.75,-131.14)  387.47                80
 04/23/2021   21:52:33   (  -0.01,-127.70) (   0.25,-126.61)  124.53                80
 04/25/2021   10:14:22   (   0.02,-127.66) (   0.94,-131.89)  481.08                80
 04/26/2021   09:52:57   (   0.01,-127.61) (  -0.06,-127.35)   29.87                80
 04/28/2021   21:56:09   (  -0.01,-127.48) (  -0.17,-128.12)   73.57                80