Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and AQUA
TLE Epoch: 2023 4 13.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(AQUA) AQUA Lat/Lon    Distance(km)  Time Diff(sec)
 04/15/2023   07:41:03   ( -80.48, 151.19) 04/15/2023   07:41:08  ( -80.48, 151.22)    0.58                 5
 04/15/2023   08:31:13   (  81.13, -29.25) 04/15/2023   08:29:59  (  81.31, -29.44)   20.61                74
 04/17/2023   22:16:25   ( -80.45, -68.12) 04/17/2023   22:16:36  ( -80.45, -67.96)    2.89                11
 04/17/2023   23:07:03   (  80.60, 101.34) 04/17/2023   23:05:55  (  80.60, 101.30)    0.71                68
 04/20/2023   12:51:42   ( -80.51,  73.82) 04/20/2023   12:51:59  ( -80.50,  73.75)    1.29                17
 04/20/2023   13:42:23   (  80.59,-117.73) 04/20/2023   13:41:20  (  80.59,-117.65)    1.43                63
 04/23/2023   03:27:03   ( -80.49,-145.30) 04/23/2023   03:27:24  ( -80.49,-145.25)    0.96                21
 04/23/2023   04:17:41   (  80.63,  24.15) 04/23/2023   04:16:43  (  80.63,  23.99)    2.92                58
 04/25/2023   18:02:24   ( -80.46,  -4.48) 04/25/2023   18:02:48  ( -80.46,  -4.30)    3.19                24