Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 5 23.  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   ( -78.29, 168.16) 05/23/2021   11:01:13  ( -78.31, 168.24)    2.92                74
 05/23/2021   11:51:03   (  78.32, -24.40) 05/23/2021   11:51:58  (  78.30, -24.37)    2.94                55
 05/23/2021   12:41:59   ( -78.30, 142.75) 05/23/2021   12:42:43  ( -78.31, 142.85)    2.64                44
 05/23/2021   13:33:03   (  78.34, -49.82) 05/23/2021   13:33:29  (  78.34, -49.97)    3.45                26
 05/23/2021   14:23:59   ( -78.32, 117.33) 05/23/2021   14:24:13  ( -78.32, 117.47)    3.08                14
 05/23/2021   15:15:03   (  78.35, -75.24) 05/23/2021   15:14:59  (  78.34, -75.36)    2.90                 4
 05/23/2021   16:05:59   ( -78.33,  91.91) 05/23/2021   16:05:44  ( -78.36,  91.86)    3.28                15
 05/23/2021   16:57:03   (  78.36,-100.65) 05/23/2021   16:56:29  (  78.34,-100.74)    2.99                34
 05/23/2021   17:47:59   ( -78.34,  66.50) 05/23/2021   17:47:14  ( -78.36,  66.48)    1.90                45
 05/23/2021   18:39:02   (  78.37,-126.07) 05/23/2021   18:37:58  (  78.34,-126.13)    3.66                64
 05/23/2021   19:29:58   ( -78.35,  41.08) 05/23/2021   19:28:43  ( -78.36,  41.09)    0.67                75