Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 5 18.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 05/30/2025   18:36:00   ( -70.44,  76.81) 05/30/2025   18:34:52  ( -70.45,  74.52)   85.26                68
 05/30/2025   19:26:50   (  70.63,-116.18) 05/30/2025   19:25:40  (  70.64,-117.89)   62.99                70
 05/30/2025   20:17:44   ( -71.17,  50.22) 05/30/2025   20:16:35  ( -71.15,  50.22)    3.00                69
 05/30/2025   21:08:30   (  71.15,-142.43) 05/30/2025   21:07:26  (  71.18,-142.44)    2.93                64
 05/30/2025   21:59:14   ( -71.18,  24.84) 05/30/2025   21:58:31  ( -71.17,  24.78)    2.27                43
 05/30/2025   22:50:01   (  71.21,-167.90) 05/30/2025   22:49:22  (  71.20,-167.88)    0.99                39
 05/30/2025   23:40:45   ( -71.23,  -0.63) 05/30/2025   23:40:26  ( -71.25,  -0.57)    2.79                19
 05/31/2025   00:31:31   (  71.21, 166.72) 05/31/2025   00:31:18  (  71.23, 166.68)    2.41                13
 05/31/2025   01:22:16   ( -71.28, -26.09) 05/31/2025   01:22:22  ( -71.27, -26.01)    3.43                 6
 05/31/2025   02:13:02   (  71.26, 141.25) 05/31/2025   02:13:14  (  71.25, 141.24)    1.36                12
 05/31/2025   03:03:46   ( -71.29, -51.47) 05/31/2025   03:04:18  ( -71.30, -51.45)    1.36                32
 05/31/2025   03:54:32   (  71.27, 115.87) 05/31/2025   03:55:10  (  71.28, 115.80)    2.71                38
 05/31/2025   04:45:17   ( -71.34, -76.94) 05/31/2025   04:46:14  ( -71.32, -76.89)    3.04                57
 05/31/2025   05:36:03   (  71.32,  90.40) 05/31/2025   05:37:06  (  71.30,  90.36)    2.66                63
 05/31/2025   06:26:53   ( -71.65,-102.87) 05/31/2025   06:28:05  ( -71.60,-101.85)   36.21                72
 05/31/2025   07:17:43   (  71.84,  64.09) 05/31/2025   07:18:53  (  71.78,  65.78)   59.02                70