Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 7 18.  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)
 07/19/2021   06:28:02   ( -78.14,-122.58) 07/19/2021   06:29:05  ( -78.13,-122.68)    2.54                63
 07/19/2021   07:18:57   (  78.14,  44.72) 07/19/2021   07:19:51  (  78.14,  44.55)    3.90                54
 07/19/2021   08:10:02   ( -78.15,-148.01) 07/19/2021   08:10:35  ( -78.13,-148.07)    2.40                33
 07/19/2021   09:00:57   (  78.15,  19.29) 07/19/2021   09:01:21  (  78.14,  19.17)    3.02                24
 07/19/2021   09:52:02   ( -78.16,-173.44) 07/19/2021   09:52:05  ( -78.13,-173.45)    3.06                 3
 07/19/2021   10:42:56   (  78.16,  -6.14) 07/19/2021   10:42:50  (  78.15,  -6.22)    2.70                 6
 07/19/2021   11:34:01   ( -78.17, 161.12) 07/19/2021   11:33:35  ( -78.17, 160.95)    4.08                26
 07/19/2021   12:24:56   (  78.17, -31.58) 07/19/2021   12:24:20  (  78.15, -31.60)    3.13                36
 07/19/2021   13:16:01   ( -78.18, 135.69) 07/19/2021   13:15:05  ( -78.17, 135.56)    3.10                56
 07/19/2021   14:06:56   (  78.19, -57.01) 07/19/2021   14:05:50  (  78.15, -56.99)    4.06                66