Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 4 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/24/2021   20:41:28   (  -0.15,-104.32) (  -1.15,-108.70)  499.72                80
 04/25/2021   20:20:04   (  -0.15,-104.31) (  -0.10,-104.17)   16.41                80
 04/28/2021   08:23:05   (   0.15,-104.24) (   0.31,-104.89)   74.78                80
 04/29/2021   08:06:59   (   0.15,-104.24) (  -0.69,-100.36)  442.39                80
 04/30/2021   20:28:56   (  -0.15,-104.31) (  -0.46,-105.66)  154.30                80
 05/01/2021   20:07:30   (  -0.15,-104.30) (   0.54,-101.13)  361.45                80
 05/03/2021   08:29:16   (   0.15,-104.21) (   0.66,-106.39)  248.17                80
 05/04/2021   08:13:12   (   0.16,-104.22) (  -0.39,-101.86)  269.26                80
 05/05/2021   20:35:07   (  -0.15,-104.32) (  -0.81,-107.16)  324.38                80
 05/06/2021   20:13:43   (  -0.16,-104.31) (   0.25,-102.63)  192.00                80
 05/08/2021   08:35:29   (   0.14,-104.21) (   0.96,-107.89)  419.38                80