Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 6 14.  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)
 06/20/2021   19:53:09   (  78.13,-145.00) 06/20/2021   19:54:22  (  78.16,-144.23)   18.06                73
 06/20/2021   20:44:05   ( -78.22,  22.82) 06/20/2021   20:45:08  ( -78.22,  22.79)    0.91                63
 06/20/2021   21:35:07   (  78.22,-169.98) 06/20/2021   21:35:54  (  78.24,-170.05)    3.45                47
 06/20/2021   22:26:05   ( -78.24,  -2.60) 06/20/2021   22:26:38  ( -78.22,  -2.59)    1.79                33
 06/20/2021   23:17:07   (  78.23, 164.60) 06/20/2021   23:17:24  (  78.25, 164.57)    2.04                17
 06/21/2021   00:08:05   ( -78.25, -28.02) 06/21/2021   00:08:08  ( -78.22, -27.98)    3.17                 3
 06/21/2021   00:59:07   (  78.24, 139.17) 06/21/2021   00:58:54  (  78.25, 139.19)    0.91                13
 06/21/2021   01:50:05   ( -78.26, -53.45) 06/21/2021   01:49:39  ( -78.26, -53.58)    2.94                26
 06/21/2021   02:41:07   (  78.25, 113.75) 06/21/2021   02:40:24  (  78.25, 113.80)    1.38                43
 06/21/2021   03:32:05   ( -78.27, -78.87) 06/21/2021   03:31:09  ( -78.26, -78.96)    2.26                56
 06/21/2021   04:23:07   (  78.26,  88.32) 06/21/2021   04:21:54  (  78.25,  88.42)    2.71                73