Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 2 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/19/2021   09:39:58   (  -0.19,-127.98) (  -1.04,-124.33)  416.66                80
 02/20/2021   22:01:53   (   0.18,-128.06) (  -0.19,-129.63)  178.80                80
 02/21/2021   21:45:49   (   0.18,-128.09) (   0.84,-125.10)  340.65                80
 02/23/2021   10:07:37   (  -0.17,-128.09) (   0.31,-130.37)  259.54                80
 02/24/2021   09:46:12   (  -0.17,-128.11) (  -0.66,-125.83)  259.01                80
 02/25/2021   22:08:08   (   0.16,-128.17) (  -0.50,-131.14)  338.28                80
 02/26/2021   21:52:04   (   0.17,-128.19) (   0.53,-126.61)  180.49                80
 02/28/2021   10:13:51   (  -0.16,-128.20) (   0.67,-131.88)  419.65                80
 03/01/2021   09:52:27   (  -0.16,-128.21) (  -0.36,-127.35)   98.29                80
 03/03/2021   21:58:17   (   0.16,-128.28) (   0.18,-128.12)   17.62                80