Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 3 21.  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)
 03/27/2021   20:37:18   ( -78.50,  22.95) 03/27/2021   20:38:29  ( -78.50,  22.88)    1.63                71
 03/27/2021   21:28:12   (  78.50,-169.73) 03/27/2021   21:29:14  (  78.48,-169.69)    2.85                62
 03/27/2021   22:19:18   ( -78.51,  -2.45) 03/27/2021   22:19:59  ( -78.50,  -2.52)    1.79                41
 03/27/2021   23:10:12   (  78.52, 164.87) 03/27/2021   23:10:44  (  78.48, 164.91)    3.87                32
 03/28/2021   00:01:18   ( -78.52, -27.85) 03/28/2021   00:01:29  ( -78.51, -27.92)    2.46                11
 03/28/2021   00:52:13   (  78.50, 139.23) 03/28/2021   00:52:15  (  78.53, 139.28)    3.57                 2
 03/28/2021   01:43:18   ( -78.54, -53.25) 03/28/2021   01:42:59  ( -78.51, -53.33)    3.35                19
 03/28/2021   02:34:13   (  78.51, 113.83) 03/28/2021   02:33:45  (  78.53, 113.88)    2.56                28
 03/28/2021   03:25:19   ( -78.52, -78.89) 03/28/2021   03:24:29  ( -78.52, -78.73)    3.64                50
 03/28/2021   04:16:13   (  78.52,  88.42) 03/28/2021   04:15:15  (  78.54,  88.47)    1.64                58
 03/28/2021   05:07:14   ( -78.71,-103.08) 03/28/2021   05:06:04  ( -78.71,-105.29)   48.03                70