Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 5 19.  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   18:36:01   ( -70.49,  76.72) 05/30/2025   18:34:52  ( -70.48,  74.56)   80.47                69
 05/30/2025   19:26:50   (  70.63,-116.18) 05/30/2025   19:25:41  (  70.61,-117.93)   64.69                69
 05/30/2025   20:17:44   ( -71.17,  50.22) 05/30/2025   20:16:35  ( -71.17,  50.27)    1.61                69
 05/30/2025   21:08:30   (  71.15,-142.43) 05/30/2025   21:07:27  (  71.16,-142.48)    1.86                63
 05/30/2025   21:59:14   ( -71.18,  24.84) 05/30/2025   21:58:31  ( -71.20,  24.83)    2.74                43
 05/30/2025   22:50:01   (  71.21,-167.90) 05/30/2025   22:49:23  (  71.18,-167.92)    2.87                38
 05/30/2025   23:40:45   ( -71.23,  -0.62) 05/30/2025   23:40:27  ( -71.22,  -0.61)    0.74                18
 05/31/2025   00:31:31   (  71.21, 166.72) 05/31/2025   00:31:19  (  71.20, 166.64)    2.97                12
 05/31/2025   01:22:15   ( -71.23, -26.00) 05/31/2025   01:22:23  ( -71.25, -26.05)    2.58                 8
 05/31/2025   02:13:02   (  71.26, 141.25) 05/31/2025   02:13:14  (  71.28, 141.29)    2.53                12
 05/31/2025   03:03:46   ( -71.29, -51.47) 05/31/2025   03:04:19  ( -71.27, -51.49)    1.55                33
 05/31/2025   03:54:33   (  71.32, 115.78) 05/31/2025   03:55:10  (  71.31, 115.85)    2.73                37
 05/31/2025   04:45:16   ( -71.29, -76.85) 05/31/2025   04:46:15  ( -71.30, -76.93)    3.07                59
 05/31/2025   05:36:03   (  71.32,  90.41) 05/31/2025   05:37:06  (  71.33,  90.41)    1.29                63
 05/31/2025   06:26:53   ( -71.65,-102.87) 05/31/2025   06:28:05  ( -71.63,-101.80)   37.50                72
 05/31/2025   07:17:44   (  71.89,  64.00) 05/31/2025   07:18:53  (  71.81,  65.84)   64.22                69