Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 5 30.  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   ( -70.47,  76.76) 05/30/2025   18:34:53  ( -70.45,  74.51)   84.04                68
 05/30/2025   19:26:51   (  70.64,-116.21) 05/30/2025   19:25:41  (  70.64,-117.88)   61.86                70
 05/30/2025   20:17:44   ( -71.15,  50.27) 05/30/2025   20:16:36  ( -71.14,  50.21)    2.09                68
 05/30/2025   21:08:31   (  71.17,-142.46) 05/30/2025   21:07:27  (  71.18,-142.43)    2.44                64
 05/30/2025   21:59:15   ( -71.20,  24.80) 05/30/2025   21:58:31  ( -71.22,  24.86)    2.89                44
 05/30/2025   22:50:02   (  71.22,-167.92) 05/30/2025   22:49:23  (  71.21,-167.87)    2.31                39
 05/30/2025   23:40:45   ( -71.20,  -0.58) 05/30/2025   23:40:28  ( -71.19,  -0.67)    3.46                17
 05/31/2025   00:31:32   (  71.22, 166.70) 05/31/2025   00:31:19  (  71.23, 166.69)    1.44                13
 05/31/2025   01:22:16   ( -71.26, -26.05) 05/31/2025   01:22:23  ( -71.27, -26.02)    1.54                 7
 05/31/2025   02:13:03   (  71.28, 141.23) 05/31/2025   02:13:15  (  71.26, 141.25)    2.06                12
 05/31/2025   03:03:47   ( -71.31, -51.52) 05/31/2025   03:04:19  ( -71.29, -51.45)    3.17                32
 05/31/2025   03:54:33   (  71.28, 115.85) 05/31/2025   03:55:11  (  71.28, 115.81)    1.44                38
 05/31/2025   04:45:16   ( -71.31, -76.90) 05/31/2025   04:46:14  ( -71.32, -76.89)    0.27                58
 05/31/2025   05:36:03   (  71.33,  90.38) 05/31/2025   05:37:06  (  71.31,  90.37)    2.66                63
 05/31/2025   06:26:53   ( -71.68,-102.92) 05/31/2025   06:28:04  ( -71.65,-101.77)   40.47                71
 05/31/2025   07:17:43   (  71.85,  64.07) 05/31/2025   07:18:52  (  71.84,  65.89)   63.23                69