Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 9 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/30/2021   09:59:48   (   0.34,-127.67) (   0.58,-128.86)  135.38                80
 10/01/2021   09:43:43   (   0.34,-127.70) (  -0.43,-124.33)  385.26                80
 10/02/2021   22:03:01   (  -0.32,-127.74) (  -0.72,-129.64)  215.63                80
 10/03/2021   21:46:56   (  -0.33,-127.78) (   0.29,-125.11)  304.92                80
 10/05/2021   10:06:05   (   0.30,-127.85) (   0.88,-130.38)  288.38                80
 10/06/2021   09:50:00   (   0.32,-127.88) (  -0.13,-125.84)  231.92                80
 10/07/2021   22:09:17   (  -0.29,-127.91) (  -1.02,-131.15)  369.78                80
 10/08/2021   21:53:13   (  -0.31,-127.94) (  -0.01,-126.62)  150.14                80
 10/10/2021   10:12:21   (   0.28,-128.00) (   1.18,-131.89)  444.45                80
 10/11/2021   09:56:17   (   0.29,-128.02) (   0.17,-127.36)   74.89                80