Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 6 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/21/2023   08:27:56   (   0.00,-104.73) (   0.06,-104.93)   22.83                80
 06/22/2023   08:06:30   (   0.00,-104.74) (  -0.98,-100.40)  494.95                80
 06/23/2023   20:28:25   (   0.00,-104.74) (  -0.21,-105.70)  108.63                80
 06/24/2023   20:12:19   (   0.00,-104.76) (   0.83,-101.17)  409.65                80
 06/26/2023   08:34:05   (  -0.00,-104.80) (   0.38,-106.43)  186.47                80
 06/27/2023   08:12:39   (  -0.00,-104.81) (  -0.66,-101.90)  331.58                80
 06/28/2023   20:34:33   (   0.00,-104.81) (  -0.52,-107.20)  272.33                80
 06/29/2023   20:18:27   (   0.00,-104.82) (   0.47,-102.66)  245.84                80
 07/01/2023   08:40:13   (   0.00,-104.86) (   0.67,-107.93)  350.33                80
 07/02/2023   08:18:47   (   0.00,-104.86) (  -0.31,-103.39)  167.20                80
 07/03/2023   20:40:41   (   0.00,-104.85) (  -0.86,-108.70)  438.06                80
 07/04/2023   20:24:35   (   0.00,-104.86) (   0.14,-104.16)   79.63                80