Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 5 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/04/2022   21:52:20   (  -0.12,-128.07) (   0.23,-126.48)  181.28                80
 05/06/2022   10:11:26   (   0.10,-128.01) (   0.95,-131.74)  425.71                80
 05/07/2022   09:55:21   (   0.11,-127.98) (  -0.05,-127.21)   87.86                80
 05/09/2022   21:55:51   (  -0.11,-127.91) (  -0.12,-127.97)    6.18                80
 05/12/2022   09:58:52   (   0.11,-127.82) (   0.29,-128.70)  100.06                80
 05/13/2022   09:42:46   (   0.11,-127.78) (  -0.72,-124.16)  413.00                80
 05/14/2022   22:02:00   (  -0.09,-127.74) (  -0.51,-129.45)  196.20                80
 05/15/2022   21:45:55   (  -0.10,-127.70) (   0.51,-124.92)  316.64                80
 05/17/2022   10:05:01   (   0.08,-127.62) (   0.67,-130.18)  291.92                80