Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 12 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)
 12/21/2023   20:33:42   (  -0.00,-104.67) (  -0.62,-107.30)  300.17                80
 12/22/2023   20:17:36   (  -0.02,-104.67) (   0.43,-102.77)  217.42                80
 12/24/2023   08:39:18   (   0.02,-104.70) (   0.73,-108.02)  377.09                80
 12/25/2023   08:17:48   (   0.02,-104.70) (  -0.29,-103.46)  141.95                80
 12/26/2023   20:39:31   (  -0.02,-104.67) (  -0.93,-108.71)  460.19                80
 12/27/2023   20:23:17   (  -0.02,-104.68) (   0.12,-104.14)   61.11                80
 12/30/2023   08:25:46   (   0.00,-104.71) (  -0.00,-104.75)    3.68                80
 01/01/2024   20:25:31   (   0.00,-104.69) (  -0.14,-105.33)   73.11                80
 01/02/2024   20:09:06   (   0.01,-104.70) (   0.92,-100.72)  453.61                80