Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 8 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/02/2021   10:05:44   (  -0.16,-127.97) (   0.42,-130.45)  283.04                80
 08/03/2021   09:49:41   (  -0.15,-127.99) (  -0.62,-125.92)  236.10                80
 08/04/2021   22:08:58   (   0.17,-127.93) (  -0.57,-131.23)  376.37                80
 08/05/2021   21:52:54   (   0.17,-127.95) (   0.48,-126.71)  142.32                80
 08/07/2021   10:12:04   (  -0.19,-128.08) (   0.66,-131.99)  444.90                80
 08/08/2021   09:55:59   (  -0.18,-128.10) (  -0.33,-127.45)   73.60                80
 08/10/2021   21:56:32   (   0.19,-128.04) (   0.12,-128.22)   21.43                80
 08/11/2021   21:40:29   (   0.18,-128.06) (   1.17,-123.70)  496.92                80
 08/13/2021   09:59:38   (  -0.20,-128.18) (  -0.03,-128.98)   91.16                80
 08/14/2021   09:43:33   (  -0.19,-128.19) (  -1.02,-124.45)  426.71                80
 08/15/2021   22:02:51   (   0.21,-128.11) (  -0.16,-129.75)  187.47                80