Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 3 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/28/2021   09:46:04   (  -0.07,-128.35) (  -0.66,-125.80)  291.44                80
 03/29/2021   22:07:59   (   0.06,-128.35) (  -0.56,-131.09)  312.11                80
 03/30/2021   21:51:54   (   0.06,-128.35) (   0.48,-126.57)  203.40                80
 04/01/2021   10:13:41   (  -0.05,-128.32) (   0.74,-131.82)  399.79                80
 04/02/2021   09:52:16   (  -0.06,-128.30) (  -0.30,-127.30)  114.52                80
 04/03/2021   22:14:12   (   0.04,-128.28) (  -0.91,-132.59)  491.49                80
 04/04/2021   21:58:06   (   0.05,-128.26) (   0.07,-128.05)   23.41                80
 04/07/2021   10:01:08   (  -0.04,-128.21) (   0.10,-128.78)   65.39                80
 04/08/2021   09:39:43   (  -0.05,-128.19) (  -0.94,-124.26)  448.62                80
 04/09/2021   22:01:39   (   0.03,-128.16) (  -0.27,-129.55)  158.18                80
 04/10/2021   21:45:33   (   0.04,-128.14) (   0.72,-125.01)  356.49                80