Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 1 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/25/2022   10:08:19   (  -0.04,-128.35) (   0.42,-130.33)  226.14                80
 01/26/2022   09:46:53   (  -0.04,-128.34) (  -0.63,-125.80)  290.42                80
 01/27/2022   22:08:47   (   0.03,-128.34) (  -0.60,-131.08)  313.00                80
 01/28/2022   21:52:40   (   0.03,-128.33) (   0.40,-126.54)  203.20                80
 01/30/2022   10:14:25   (  -0.02,-128.30) (   0.78,-131.80)  399.55                80
 01/31/2022   09:52:59   (  -0.02,-128.29) (  -0.22,-127.26)  116.23                80
 02/01/2022   22:14:53   (   0.02,-128.28) (  -0.95,-132.56)  488.41                80
 02/02/2022   21:58:47   (   0.03,-128.27) (   0.05,-128.02)   27.44                80
 02/05/2022   10:01:47   (  -0.02,-128.23) (   0.07,-128.76)   59.67                80
 02/06/2022   09:40:20   (  -0.02,-128.21) (  -0.93,-124.22)  455.93                80
 02/07/2022   22:02:14   (   0.02,-128.20) (  -0.28,-129.51)  148.78                80