Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 1 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/20/2022   10:02:12   (  -0.04,-128.36) (   0.07,-128.85)   55.77                80
 01/21/2022   09:40:45   (  -0.04,-128.36) (  -0.93,-124.31)  461.18                80
 01/22/2022   22:02:40   (   0.04,-128.36) (  -0.25,-129.60)  142.17                80
 01/23/2022   21:46:34   (   0.04,-128.36) (   0.80,-125.08)  374.71                80
 01/25/2022   10:08:20   (  -0.04,-128.35) (   0.38,-130.34)  226.25                80
 01/26/2022   09:46:53   (  -0.04,-128.34) (  -0.62,-125.80)  290.07                80
 01/27/2022   22:08:46   (   0.04,-128.33) (  -0.61,-131.08)  314.71                80
 01/28/2022   21:52:41   (   0.03,-128.32) (   0.45,-126.55)  201.28                80
 01/30/2022   10:14:26   (  -0.02,-128.29) (   0.73,-131.82)  400.80                80
 01/31/2022   09:53:00   (  -0.02,-128.28) (  -0.26,-127.27)  114.74                80
 02/01/2022   22:14:53   (   0.02,-128.26) (  -0.96,-132.56)  491.22                80
 02/02/2022   21:58:48   (   0.03,-128.24) (   0.10,-128.04)   24.43                80