Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 4 23.  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   02:57:43   ( -78.41, -71.63) 04/25/2021   02:58:51  ( -78.40, -71.68)    1.30                68
 04/25/2021   03:48:42   (  78.41,  95.67) 04/25/2021   03:49:36  (  78.38,  95.74)    3.61                54
 04/25/2021   04:39:43   ( -78.42, -97.04) 04/25/2021   04:40:21  ( -78.41, -97.09)    1.78                38
 04/25/2021   05:30:42   (  78.43,  70.26) 04/25/2021   05:31:07  (  78.43,  70.11)    3.43                25
 04/25/2021   06:21:43   ( -78.43,-122.45) 04/25/2021   06:21:51  ( -78.41,-122.49)    2.52                 8
 04/25/2021   07:12:42   (  78.44,  44.85) 04/25/2021   07:12:37  (  78.43,  44.70)    3.52                 5
 04/25/2021   08:03:43   ( -78.45,-147.86) 04/25/2021   08:03:21  ( -78.42,-147.90)    3.35                22
 04/25/2021   08:54:43   (  78.42,  19.21) 04/25/2021   08:54:07  (  78.44,  19.30)    2.82                36
 04/25/2021   09:45:44   ( -78.43,-173.50) 04/25/2021   09:44:52  ( -78.46,-173.53)    4.13                52
 04/25/2021   10:36:43   (  78.43,  -6.19) 04/25/2021   10:35:37  (  78.44,  -6.11)    2.20                66
 04/25/2021   11:27:35   ( -78.75, 163.26) 04/25/2021   11:26:30  ( -78.77, 159.22)   87.76                65