Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 5 19.  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)
 05/19/2023   16:15:13   (  71.31, -69.59) 05/19/2023   16:16:21  (  71.22, -67.82)   64.12                68
 05/19/2023   17:05:43   ( -70.60,  98.91) 05/19/2023   17:05:55  ( -70.62,  98.92)    2.80                12
 05/19/2023   17:56:27   (  70.47, -93.58) 05/19/2023   17:55:19  (  70.48, -93.63)    1.85                68
 05/22/2023   05:08:57   (  70.67,  97.98) 05/22/2023   05:09:57  (  70.67,  97.96)    0.80                60
 05/22/2023   05:59:39   ( -70.59, -94.56) 05/22/2023   05:59:22  ( -70.58, -94.53)    1.78                17
 05/22/2023   06:50:06   (  69.57,  74.30) 05/22/2023   06:49:00  (  69.65,  71.83)   96.20                66
 05/24/2023   18:02:53   (  70.67, -95.50) 05/24/2023   18:03:23  (  70.66, -95.45)    2.64                30
 05/24/2023   18:53:34   ( -70.53,  72.04) 05/24/2023   18:52:49  ( -70.51,  71.99)    2.83                45
 05/27/2023   06:06:11   ( -71.10, -97.01) 05/27/2023   06:07:21  ( -71.00, -95.97)   39.31                70
 05/27/2023   06:56:48   (  70.62,  71.09) 05/27/2023   06:56:49  (  70.62,  71.12)    1.09                 1
 05/27/2023   07:47:28   ( -70.43,-121.28) 05/27/2023   07:46:15  ( -70.48,-121.43)    8.25                73
 05/29/2023   18:59:59   ( -70.69,  70.19) 05/29/2023   19:00:52  ( -70.68,  70.16)    1.75                53
 05/29/2023   19:50:43   (  70.58,-122.33) 05/29/2023   19:50:15  (  70.56,-122.35)    2.25                28
 06/01/2023   07:53:53   ( -70.65,-123.23) 06/01/2023   07:54:16  ( -70.66,-123.24)    1.48                23
 06/01/2023   08:44:37   (  70.54,  44.25) 06/01/2023   08:43:39  (  70.54,  44.24)    0.63                58