Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 7 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)
 07/19/2021   06:28:02   ( -78.13,-122.64) 07/19/2021   06:29:05  ( -78.14,-122.75)    2.76                63
 07/19/2021   07:18:57   (  78.13,  44.65) 07/19/2021   07:19:50  (  78.11,  44.69)    2.06                53
 07/19/2021   08:10:02   ( -78.14,-148.08) 07/19/2021   08:10:35  ( -78.14,-148.13)    1.40                33
 07/19/2021   09:00:57   (  78.14,  19.22) 07/19/2021   09:01:21  (  78.16,  19.09)    3.27                24
 07/19/2021   09:52:02   ( -78.15,-173.51) 07/19/2021   09:52:05  ( -78.14,-173.52)    0.80                 3
 07/19/2021   10:42:57   (  78.15,  -6.22) 07/19/2021   10:42:51  (  78.16,  -6.29)    1.85                 6
 07/19/2021   11:34:02   ( -78.16, 161.06) 07/19/2021   11:33:35  ( -78.14, 161.10)    1.92                27
 07/19/2021   12:24:57   (  78.16, -31.65) 07/19/2021   12:24:21  (  78.16, -31.68)    0.71                36
 07/19/2021   13:16:02   ( -78.17, 135.63) 07/19/2021   13:15:05  ( -78.15, 135.71)    3.32                57
 07/19/2021   14:06:57   (  78.17, -57.08) 07/19/2021   14:05:51  (  78.16, -57.06)    1.38                66