Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 6 20.  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,-104.72) (   0.03,-104.93)   24.32                80
 06/22/2023   08:06:30   (   0.01,-104.72) (  -0.95,-100.39)  492.63                80
 06/23/2023   20:28:24   (  -0.01,-104.71) (  -0.24,-105.69)  112.06                80
 06/24/2023   20:12:19   (  -0.02,-104.71) (   0.80,-101.16)  405.20                80
 06/26/2023   08:34:04   (   0.02,-104.73) (   0.41,-106.42)  193.25                80
 06/27/2023   08:12:39   (   0.02,-104.73) (  -0.63,-101.89)  323.68                80
 06/28/2023   20:34:33   (  -0.02,-104.72) (  -0.55,-107.20)  281.76                80
 06/29/2023   20:18:26   (  -0.02,-104.72) (   0.44,-102.65)  235.14                80
 07/01/2023   08:40:13   (   0.00,-104.73) (   0.71,-107.93)  363.72                80
 07/02/2023   08:18:46   (   0.00,-104.73) (  -0.28,-103.39)  152.56                80
 07/03/2023   20:40:41   (   0.00,-104.70) (  -0.89,-108.69)  454.13                80