Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 6 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/28/2021   20:23:32   (   0.09,-104.33) (   0.09,-104.35)    1.84                80
 07/01/2021   08:23:57   (  -0.10,-104.09) (   0.10,-105.09)  112.51                80
 07/02/2021   08:07:52   (  -0.08,-104.10) (  -0.88,-100.55)  404.42                80
 07/03/2021   20:27:12   (   0.12,-104.35) (  -0.20,-105.88)  174.39                80
 07/04/2021   20:11:07   (   0.10,-104.35) (   0.78,-101.34)  342.60                80
 07/06/2021   08:30:16   (  -0.15,-104.11) (   0.44,-106.61)  284.95                80
 07/07/2021   08:14:12   (  -0.13,-104.11) (  -0.60,-102.08)  231.73                80
 07/08/2021   20:33:30   (   0.17,-104.36) (  -0.53,-107.40)  347.79                80
 07/09/2021   20:17:26   (   0.15,-104.36) (   0.46,-102.87)  169.06                80
 07/11/2021   08:36:35   (  -0.19,-104.12) (   0.70,-108.14)  458.20                80