Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 5 1.  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)
 05/02/2023   00:29:39   ( -70.63, -12.08) 05/02/2023   00:30:25  ( -70.63, -12.01)    2.63                46
 05/02/2023   01:20:23   (  70.50, 155.42) 05/02/2023   01:19:49  (  70.49, 155.45)    1.64                34
 05/04/2023   12:33:10   (  71.59, -14.54) 05/04/2023   12:34:15  (  71.49, -11.73)   99.59                65
 05/04/2023   13:23:34   ( -70.57, 154.53) 05/04/2023   13:23:55  ( -70.56, 154.50)    0.98                21
 05/04/2023   14:14:18   (  70.44, -37.97) 05/04/2023   14:13:19  (  70.43, -38.04)    3.21                59
 05/07/2023   01:26:49   (  70.65, 153.57) 05/07/2023   01:28:00  (  70.63, 153.54)    2.87                71
 05/07/2023   02:17:30   ( -70.51, -38.88) 05/07/2023   02:17:25  ( -70.53, -38.95)    3.23                 5
 05/07/2023   03:08:06   (  69.97, 129.27) 05/07/2023   03:06:56  (  70.00, 127.96)   49.97                70
 05/09/2023   14:20:45   (  70.61, -39.85) 05/09/2023   14:21:29  (  70.62, -39.87)    1.25                44
 05/09/2023   15:11:27   ( -70.52, 127.62) 05/09/2023   15:10:54  ( -70.52, 127.64)    0.85                33
 05/12/2023   02:24:14   ( -71.57, -42.27) 05/12/2023   02:25:20  ( -71.49, -39.57)   95.57                66
 05/12/2023   03:14:41   (  70.57, 126.72) 05/12/2023   03:14:58  (  70.58, 126.68)    1.72                17
 05/12/2023   04:05:23   ( -70.48, -65.81) 05/12/2023   04:04:23  ( -70.48, -65.81)    0.51                60
 05/14/2023   15:17:53   ( -70.65, 125.80) 05/14/2023   15:19:03  ( -70.66, 125.75)    1.91                70
 05/14/2023   16:08:37   (  70.54, -66.72) 05/14/2023   16:08:26  (  70.56, -66.73)    2.28                11