Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 4 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/15/2021   20:07:39   (  -0.15,-104.30) (   0.57,-101.18)  356.62                80
 04/17/2021   08:29:26   (   0.15,-104.28) (   0.64,-106.43)  245.97                80
 04/18/2021   08:13:21   (   0.15,-104.28) (  -0.41,-101.91)  271.02                80
 04/19/2021   20:35:16   (  -0.15,-104.31) (  -0.81,-107.20)  330.27                80
 04/20/2021   20:13:51   (  -0.16,-104.29) (   0.19,-102.67)  185.14                80
 04/22/2021   08:35:38   (   0.15,-104.24) (   0.96,-107.94)  420.35                80
 04/23/2021   08:19:33   (   0.16,-104.25) (  -0.03,-103.40)   96.64                80
 04/25/2021   20:20:04   (  -0.16,-104.29) (  -0.12,-104.17)   13.66                80
 04/28/2021   08:23:04   (   0.15,-104.21) (   0.33,-104.89)   77.80                80