Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 20.  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)
 04/21/2023   21:44:50   (  70.60,-150.81) 04/21/2023   21:45:43  (  70.59,-150.78)    1.68                53
 04/21/2023   22:35:31   ( -70.46,  16.72) 04/21/2023   22:35:09  ( -70.44,  16.66)    3.32                22
 04/24/2023   10:38:38   (  70.54,  15.81) 04/24/2023   10:39:15  (  70.55,  15.76)    2.35                37
 04/24/2023   11:29:20   ( -70.46,-176.73) 04/24/2023   11:28:40  ( -70.46,-176.73)    0.42                40
 04/26/2023   23:32:28   (  70.55,-177.66) 04/26/2023   23:32:47  (  70.53,-177.69)    2.87                19
 04/27/2023   00:23:10   ( -70.46, -10.20) 04/27/2023   00:22:12  ( -70.44, -10.17)    3.29                58
 04/29/2023   11:35:39   ( -70.94,-179.07) 04/29/2023   11:36:51  ( -70.83,-178.31)   30.34                72
 04/29/2023   12:26:17   (  70.52, -11.08) 04/29/2023   12:26:18  (  70.52, -11.11)    1.34                 1
 04/29/2023   13:16:57   ( -70.33, 156.55) 04/29/2023   13:15:44  ( -70.37, 156.33)    9.65                73
 05/02/2023   00:29:22   ( -70.61, -11.98) 05/02/2023   00:30:25  ( -70.61, -12.03)    1.99                63
 05/02/2023   01:20:06   (  70.51, 155.49) 05/02/2023   01:19:48  (  70.52, 155.49)    1.45                18