Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 5 16.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/17/2023   04:11:48   ( -70.65, -67.69) 05/17/2023   04:12:28  ( -70.66, -67.63)    2.37                40
 05/17/2023   05:02:32   (  70.53,  99.82) 05/17/2023   05:01:52  (  70.52,  99.82)    0.50                40
 05/19/2023   16:15:13   (  71.30, -69.58) 05/19/2023   16:16:21  (  71.22, -67.81)   63.69                68
 05/19/2023   17:05:43   ( -70.59,  98.93) 05/19/2023   17:05:56  ( -70.58,  98.86)    2.91                13
 05/19/2023   17:56:27   (  70.46, -93.57) 05/19/2023   17:55:19  (  70.48, -93.62)    2.95                68
 05/22/2023   05:08:57   (  70.67,  97.99) 05/22/2023   05:09:57  (  70.67,  97.95)    1.45                60
 05/22/2023   05:59:39   ( -70.58, -94.55) 05/22/2023   05:59:22  ( -70.57, -94.53)    0.83                17
 05/22/2023   06:50:06   (  69.56,  74.31) 05/22/2023   06:49:00  (  69.65,  71.83)   96.85                66
 05/24/2023   18:02:52   (  70.62, -95.42) 05/24/2023   18:03:23  (  70.63, -95.48)    2.69                31
 05/24/2023   18:53:34   ( -70.53,  72.05) 05/24/2023   18:52:48  ( -70.54,  72.04)    1.72                46
 05/27/2023   06:06:10   ( -71.05, -96.93) 05/27/2023   06:07:21  ( -70.95, -96.04)   34.17                71
 05/27/2023   06:56:48   (  70.63,  71.08) 05/27/2023   06:56:48  (  70.62,  71.12)    2.08                 0
 05/27/2023   07:47:28   ( -70.43,-121.29) 05/27/2023   07:46:14  ( -70.49,-121.42)    7.85                74
 05/29/2023   18:59:58   ( -70.71,  70.17) 05/29/2023   19:00:49  ( -70.70,  70.21)    1.55                51
 05/29/2023   19:50:42   (  70.60,-122.35) 05/29/2023   19:50:12  (  70.58,-122.31)    2.29                30