Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 7 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/18/2023   08:19:11   (  -0.01,-104.72) (  -0.30,-103.53)  136.51                80
 07/19/2023   20:41:07   (   0.01,-104.71) (  -0.91,-108.84)  470.49                80
 07/20/2023   20:25:02   (   0.01,-104.71) (   0.11,-104.31)   45.74                80
 07/23/2023   08:28:05   (  -0.01,-104.73) (   0.08,-105.05)   37.28                80
 07/24/2023   08:06:41   (  -0.01,-104.73) (  -0.93,-100.52)  478.96                80
 07/25/2023   20:28:37   (   0.02,-104.71) (  -0.26,-105.83)  128.00                80
 07/26/2023   20:12:33   (   0.02,-104.71) (   0.76,-101.30)  388.26                80
 07/28/2023   08:34:21   (  -0.02,-104.73) (   0.38,-106.58)  211.08                80
 07/29/2023   08:12:56   (  -0.02,-104.72) (  -0.64,-102.05)  304.55                80
 07/30/2023   20:34:53   (   0.02,-104.69) (  -0.55,-107.36)  303.76                80
 07/31/2023   20:18:47   (   0.02,-104.69) (   0.42,-102.82)  212.03                80