Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 4 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)
 04/16/2022   09:46:41   (   0.13,-128.37) (  -0.47,-125.77)  296.83                80
 04/17/2022   22:08:36   (  -0.12,-128.38) (  -0.74,-131.06)  306.56                80
 04/18/2022   21:52:31   (  -0.12,-128.37) (   0.31,-126.54)  209.14                80
 04/20/2022   10:14:18   (   0.12,-128.33) (   0.90,-131.80)  395.34                80
 04/21/2022   09:52:52   (   0.13,-128.31) (  -0.09,-127.26)  119.61                80
 04/22/2022   22:14:49   (  -0.12,-128.30) (  -1.06,-132.57)  485.77                80
 04/23/2022   21:58:43   (  -0.13,-128.29) (  -0.06,-128.03)   29.27                80
 04/26/2022   09:59:04   (   0.13,-128.23) (   0.28,-128.75)   60.60                80
 04/27/2022   09:40:19   (   0.14,-128.21) (  -0.78,-124.23)  454.31                80
 04/28/2022   22:02:15   (  -0.13,-128.20) (  -0.42,-129.53)  151.46                80
 04/29/2022   21:46:09   (  -0.13,-128.18) (   0.58,-124.99)  363.45                80