Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 4 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)
 04/25/2021   02:57:44   ( -78.39, -71.74) 04/25/2021   02:58:52  ( -78.42, -71.79)    3.76                68
 04/25/2021   03:48:43   (  78.39,  95.53) 04/25/2021   03:49:37  (  78.41,  95.61)    2.42                54
 04/25/2021   04:39:44   ( -78.40, -97.15) 04/25/2021   04:40:22  ( -78.43, -97.19)    2.85                38
 04/25/2021   05:30:43   (  78.41,  70.12) 04/25/2021   05:31:07  (  78.41,  70.20)    1.86                24
 04/25/2021   06:21:44   ( -78.42,-122.56) 04/25/2021   06:21:52  ( -78.43,-122.60)    1.95                 8
 04/25/2021   07:12:43   (  78.42,  44.72) 04/25/2021   07:12:37  (  78.42,  44.79)    1.73                 6
 04/25/2021   08:03:44   ( -78.43,-147.97) 04/25/2021   08:03:22  ( -78.44,-148.00)    1.10                22
 04/25/2021   08:54:43   (  78.43,  19.31) 04/25/2021   08:54:07  (  78.42,  19.39)    2.08                36
 04/25/2021   09:45:44   ( -78.44,-173.38) 04/25/2021   09:44:52  ( -78.44,-173.41)    0.56                52
 04/25/2021   10:36:43   (  78.45,  -6.09) 04/25/2021   10:35:37  (  78.43,  -6.02)    2.75                66
 04/25/2021   11:27:35   ( -78.77, 163.39) 04/25/2021   11:26:31  ( -78.79, 159.10)   92.86                64