Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 5 20.  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   ( -70.48,  76.74) 05/30/2025   18:34:53  ( -70.43,  74.48)   84.28                68
 05/30/2025   19:26:50   (  70.61,-116.16) 05/30/2025   19:25:41  (  70.62,-117.93)   65.02                69
 05/30/2025   20:17:44   ( -71.16,  50.24) 05/30/2025   20:16:35  ( -71.18,  50.27)    2.14                69
 05/30/2025   21:08:30   (  71.14,-142.41) 05/30/2025   21:07:27  (  71.16,-142.47)    3.12                63
 05/30/2025   21:59:15   ( -71.22,  24.77) 05/30/2025   21:58:31  ( -71.20,  24.84)    2.71                44
 05/30/2025   22:50:01   (  71.19,-167.88) 05/30/2025   22:49:23  (  71.19,-167.91)    1.50                38
 05/30/2025   23:40:45   ( -71.22,  -0.61) 05/30/2025   23:40:27  ( -71.23,  -0.60)    1.00                18
 05/31/2025   00:31:32   (  71.25, 166.65) 05/31/2025   00:31:18  (  71.26, 166.74)    3.52                14
 05/31/2025   01:22:16   ( -71.27, -26.07) 05/31/2025   01:22:23  ( -71.25, -26.04)    2.51                 7
 05/31/2025   02:13:02   (  71.25, 141.27) 05/31/2025   02:13:15  (  71.23, 141.21)    2.91                13
 05/31/2025   03:03:46   ( -71.28, -51.45) 05/31/2025   03:04:19  ( -71.28, -51.48)    1.11                33
 05/31/2025   03:54:33   (  71.30, 115.80) 05/31/2025   03:55:10  (  71.31, 115.86)    2.18                37
 05/31/2025   04:45:17   ( -71.33, -76.92) 05/31/2025   04:46:15  ( -71.30, -76.92)    3.01                58
 05/31/2025   05:36:03   (  71.31,  90.42) 05/31/2025   05:37:06  (  71.33,  90.42)    3.08                63
 05/31/2025   06:26:54   ( -71.69,-102.95) 05/31/2025   06:28:05  ( -71.63,-101.80)   40.81                71
 05/31/2025   07:17:44   (  71.88,  64.02) 05/31/2025   07:18:53  (  71.82,  65.85)   63.64                69