Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 3 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/16/2022   22:11:23   (  -0.08,-128.02) (  -0.77,-131.08)  348.79                80
 03/17/2022   21:49:59   (  -0.08,-128.05) (   0.25,-126.55)  171.13                80
 03/19/2022   10:14:27   (   0.08,-128.10) (   0.89,-131.83)  424.22                80
 03/20/2022   09:53:02   (   0.08,-128.13) (  -0.13,-127.30)   95.26                80
 03/22/2022   21:58:53   (  -0.08,-128.20) (  -0.07,-128.07)   14.43                80
 03/25/2022   10:01:56   (   0.09,-128.25) (   0.24,-128.80)   63.92                80
 03/26/2022   09:40:32   (   0.09,-128.27) (  -0.79,-124.28)  454.54                80
 03/27/2022   22:02:28   (  -0.10,-128.29) (  -0.38,-129.58)  146.89                80
 03/28/2022   21:46:23   (  -0.10,-128.31) (   0.65,-125.06)  371.62                80