Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 7 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)
 07/29/2021   09:43:21   (  -0.12,-127.85) (  -0.87,-124.39)  394.71                80
 07/30/2021   22:02:39   (   0.14,-127.80) (  -0.26,-129.71)  217.11                80
 07/31/2021   21:46:35   (   0.13,-127.82) (   0.73,-125.17)  302.55                80
 08/02/2021   10:05:44   (  -0.16,-127.98) (   0.42,-130.45)  282.47                80
 08/03/2021   09:49:41   (  -0.15,-128.00) (  -0.63,-125.93)  236.78                80
 08/04/2021   22:08:58   (   0.17,-127.93) (  -0.56,-131.23)  376.22                80
 08/05/2021   21:52:54   (   0.17,-127.95) (   0.43,-126.70)  142.58                80
 08/07/2021   10:12:03   (  -0.19,-128.09) (   0.71,-131.98)  443.73                80
 08/08/2021   09:55:59   (  -0.18,-128.11) (  -0.34,-127.46)   74.89                80
 08/10/2021   21:56:32   (   0.19,-128.05) (   0.14,-128.23)   20.35                80
 08/11/2021   21:40:28   (   0.18,-128.07) (   1.13,-123.69)  497.96                80