Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 5 10.  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   10:59:59   ( -78.30, 168.21) 05/23/2021   11:01:13  ( -78.31, 168.24)    1.82                74
 05/23/2021   11:51:03   (  78.32, -24.41) 05/23/2021   11:51:58  (  78.31, -24.42)    1.47                55
 05/23/2021   12:41:59   ( -78.31, 142.79) 05/23/2021   12:42:43  ( -78.31, 142.85)    1.44                44
 05/23/2021   13:33:03   (  78.33, -49.82) 05/23/2021   13:33:28  (  78.31, -49.81)    2.71                25
 05/23/2021   14:23:59   ( -78.32, 117.38) 05/23/2021   14:24:13  ( -78.32, 117.47)    2.23                14
 05/23/2021   15:15:03   (  78.35, -75.24) 05/23/2021   15:14:59  (  78.35, -75.42)    3.98                 4
 05/23/2021   16:05:59   ( -78.34,  91.96) 05/23/2021   16:05:44  ( -78.36,  91.86)    3.18                15
 05/23/2021   16:57:03   (  78.36,-100.65) 05/23/2021   16:56:29  (  78.35,-100.80)    3.39                34
 05/23/2021   17:47:59   ( -78.35,  66.54) 05/23/2021   17:47:14  ( -78.36,  66.48)    1.83                45
 05/23/2021   18:39:04   (  78.34,-126.30) 05/23/2021   18:37:59  (  78.35,-126.19)    3.25                65
 05/23/2021   19:29:59   ( -78.36,  41.13) 05/23/2021   19:28:44  ( -78.36,  41.09)    0.80                75