Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 3 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)
 03/22/2023   12:40:02   (  70.51, -14.41) 03/22/2023   12:41:06  (  70.51, -14.42)    0.41                64
 03/22/2023   13:30:44   ( -70.42, 153.05) 03/22/2023   13:30:32  ( -70.42, 153.09)    1.59                12
 03/22/2023   14:21:15   (  69.62, -38.43) 03/22/2023   14:20:07  (  69.63, -40.35)   74.38                68
 03/25/2023   01:33:55   (  70.52, 152.10) 03/25/2023   01:34:48  (  70.49, 152.10)    3.58                53
 03/25/2023   02:24:36   ( -70.38, -40.35) 03/25/2023   02:24:14  ( -70.40, -40.38)    2.69                22
 03/27/2023   14:27:47   (  70.49, -41.33) 03/27/2023   14:28:29  (  70.49, -41.35)    1.13                42
 03/27/2023   15:18:29   ( -70.40, 126.14) 03/27/2023   15:17:55  ( -70.39, 126.16)    0.84                34
 03/30/2023   03:21:38   (  70.47, 125.23) 03/30/2023   03:22:08  (  70.50, 125.22)    2.94                30
 03/30/2023   04:12:20   ( -70.37, -67.29) 03/30/2023   04:11:35  ( -70.35, -67.34)    3.25                45
 04/01/2023   16:15:30   (  70.46, -68.22) 04/01/2023   16:15:48  (  70.47, -68.25)    1.77                18
 04/01/2023   17:06:12   ( -70.36,  99.26) 04/01/2023   17:05:14  ( -70.37,  99.25)    1.80                58