Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 6 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/16/2023   08:19:08   (   0.00,-104.72) (  -0.31,-103.44)  146.66                80
 06/17/2023   20:41:02   (  -0.01,-104.71) (  -0.89,-108.73)  458.25                80
 06/18/2023   20:24:55   (  -0.01,-104.71) (   0.09,-104.19)   58.72                80
 06/21/2023   08:27:56   (   0.02,-104.72) (   0.04,-104.93)   23.56                80
 06/22/2023   08:06:30   (   0.02,-104.72) (  -0.94,-100.39)  493.37                80
 06/23/2023   20:28:24   (  -0.02,-104.72) (  -0.25,-105.69)  111.35                80
 06/24/2023   20:12:19   (  -0.02,-104.72) (   0.79,-101.16)  405.90                80
 06/26/2023   08:34:04   (   0.02,-104.74) (   0.43,-106.42)  192.24                80
 06/27/2023   08:12:39   (   0.02,-104.74) (  -0.61,-101.89)  324.76                80
 06/28/2023   20:34:33   (  -0.03,-104.73) (  -0.57,-107.19)  280.36                80
 06/29/2023   20:18:26   (  -0.03,-104.73) (   0.42,-102.65)  236.78                80