Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 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)
 01/02/2023   20:49:00   (  70.31,-136.12) 01/02/2023   20:50:01  (  70.30,-136.20)    3.35                61
 01/02/2023   21:39:42   ( -70.22,  31.34) 01/02/2023   21:39:26  ( -70.22,  31.35)    0.52                16
 01/02/2023   22:30:11   (  69.31,-160.01) 01/02/2023   22:29:04  (  69.33,-162.20)   86.40                67
 01/05/2023   09:42:56   (  70.36,  30.32) 01/05/2023   09:44:05  (  70.37,  30.36)    1.87                69
 01/05/2023   10:33:37   ( -70.21,-162.13) 01/05/2023   10:33:31  ( -70.24,-162.17)    3.17                 6
 01/05/2023   11:24:13   (  69.68,   5.98) 01/05/2023   11:23:02  (  69.74,   4.79)   46.55                71
 01/07/2023   22:36:55   (  70.62,-163.58) 01/07/2023   22:38:06  (  70.53,-162.95)   25.60                71
 01/07/2023   23:27:32   ( -70.26,   4.30) 01/07/2023   23:27:35  ( -70.24,   4.28)    3.20                 3
 01/08/2023   00:18:13   (  69.99, 172.02) 01/08/2023   00:17:00  (  70.06, 171.70)   14.65                73
 01/10/2023   11:30:56   (  70.94,   2.41) 01/10/2023   11:32:05  (  70.83,   3.96)   57.94                69
 01/10/2023   12:21:27   ( -70.27, 170.81) 01/10/2023   12:21:39  ( -70.26, 170.78)    1.15                12
 01/10/2023   13:12:11   (  70.16, -21.71) 01/10/2023   13:11:03  (  70.14, -21.73)    1.78                68
 01/13/2023   00:24:57   (  71.26, 168.37) 01/13/2023   00:26:03  (  71.16, 170.94)   92.66                66
 01/13/2023   01:15:22   ( -70.27, -22.69) 01/13/2023   01:15:43  ( -70.27, -22.75)    2.29                21
 01/13/2023   02:06:06   (  70.17, 144.78) 01/13/2023   02:05:07  (  70.15, 144.74)    3.14                59