Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 5 15.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/23/2021   10:59:58   ( -78.32, 168.36) 05/23/2021   11:01:13  ( -78.32, 168.19)    3.97                75
 05/23/2021   11:51:03   (  78.31, -24.47) 05/23/2021   11:51:58  (  78.31, -24.45)    0.39                55
 05/23/2021   12:41:59   ( -78.30, 142.72) 05/23/2021   12:42:43  ( -78.32, 142.80)    3.36                44
 05/23/2021   13:33:03   (  78.32, -49.88) 05/23/2021   13:33:28  (  78.31, -49.84)    1.52                25
 05/23/2021   14:23:59   ( -78.31, 117.30) 05/23/2021   14:24:13  ( -78.33, 117.42)    3.05                14
 05/23/2021   15:15:03   (  78.34, -75.30) 05/23/2021   15:14:58  (  78.32, -75.22)    2.91                 5
 05/23/2021   16:05:59   ( -78.32,  91.88) 05/23/2021   16:05:43  ( -78.33,  92.03)    3.37                16
 05/23/2021   16:57:03   (  78.35,-100.71) 05/23/2021   16:56:29  (  78.36,-100.83)    2.71                34
 05/23/2021   17:47:59   ( -78.34,  66.47) 05/23/2021   17:47:14  ( -78.37,  66.43)    3.51                45
 05/23/2021   18:39:03   (  78.36,-126.13) 05/23/2021   18:37:59  (  78.36,-126.22)    1.99                64
 05/23/2021   19:29:59   ( -78.35,  41.05) 05/23/2021   19:28:44  ( -78.37,  41.04)    2.17                75