Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 18.  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)
 04/19/2023   08:50:59   (  70.57,  42.70) 04/19/2023   08:52:10  (  70.58,  42.61)    3.14                71
 04/19/2023   09:41:41   ( -70.49,-149.85) 04/19/2023   09:41:35  ( -70.49,-149.87)    0.59                 6
 04/19/2023   10:32:16   (  69.90,  18.37) 04/19/2023   10:31:06  (  69.95,  17.04)   51.11                70
 04/21/2023   21:44:49   (  70.55,-150.74) 04/21/2023   21:45:43  (  70.58,-150.80)    3.33                54
 04/21/2023   22:35:31   ( -70.47,  16.71) 04/21/2023   22:35:08  ( -70.49,  16.72)    1.96                23
 04/24/2023   10:38:39   (  70.55,  15.80) 04/24/2023   10:39:16  (  70.53,  15.73)    3.47                37
 04/24/2023   11:29:20   ( -70.46,-176.74) 04/24/2023   11:28:40  ( -70.44,-176.75)    2.35                40
 04/26/2023   23:32:28   (  70.56,-177.67) 04/26/2023   23:32:46  (  70.55,-177.65)    0.96                18
 04/27/2023   00:23:10   ( -70.47, -10.21) 04/27/2023   00:22:11  ( -70.46, -10.13)    2.95                59
 04/29/2023   11:35:39   ( -70.94,-179.07) 04/29/2023   11:36:50  ( -70.84,-178.28)   30.69                71
 04/29/2023   12:26:17   (  70.53, -11.08) 04/29/2023   12:26:17  (  70.53, -11.09)    0.42                 0
 04/29/2023   13:16:57   ( -70.33, 156.55) 04/29/2023   13:15:43  ( -70.38, 156.35)    9.61                74
 05/02/2023   00:29:22   ( -70.61, -11.98) 05/02/2023   00:30:24  ( -70.61, -12.03)    2.00                62
 05/02/2023   01:20:06   (  70.51, 155.49) 05/02/2023   01:19:47  (  70.51, 155.49)    0.81                19