Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/19/2022   22:08:11   (  -0.07,-127.56) (  -0.80,-130.95)  385.51                80
 05/20/2022   21:52:05   (  -0.08,-127.52) (   0.16,-126.40)  127.24                80
 05/22/2022   10:11:11   (   0.06,-127.44) (   1.00,-131.67)  481.90                80
 05/23/2022   09:53:18   (   0.08,-127.39) (   0.04,-127.12)   30.61                27
 05/25/2022   21:55:35   (  -0.07,-127.30) (  -0.17,-127.89)   66.50                80
 05/26/2022   21:39:28   (  -0.08,-127.26) (   0.80,-123.34)  446.26                80
 05/28/2022   09:58:34   (   0.05,-127.18) (   0.35,-128.61)  162.98                80
 05/29/2022   09:42:28   (   0.06,-127.13) (  -0.62,-124.07)  348.98                80
 05/30/2022   22:01:43   (  -0.03,-127.06) (  -0.52,-129.37)  262.27                80
 05/31/2022   21:45:37   (  -0.04,-127.02) (   0.46,-124.83)  249.80                80