Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2022 12 31.  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)
 12/31/2022   07:55:05   (  70.33,  57.34) 12/31/2022   07:55:55  (  70.31,  57.36)    3.10                50
 12/31/2022   08:45:46   ( -70.20,-135.13) 12/31/2022   08:45:21  ( -70.18,-135.17)    2.23                25
 01/02/2023   20:49:00   (  70.32,-136.13) 01/02/2023   20:50:00  (  70.35,-136.13)    2.95                60
 01/02/2023   21:39:42   ( -70.23,  31.33) 01/02/2023   21:39:26  ( -70.22,  31.34)    1.38                16
 01/02/2023   22:30:11   (  69.32,-160.01) 01/02/2023   22:29:04  (  69.33,-162.21)   86.41                67
 01/05/2023   09:42:56   (  70.36,  30.32) 01/05/2023   09:44:05  (  70.36,  30.35)    1.35                69
 01/05/2023   10:33:37   ( -70.22,-162.14) 01/05/2023   10:33:31  ( -70.23,-162.18)    2.33                 6
 01/05/2023   11:24:12   (  69.63,   6.05) 01/05/2023   11:23:02  (  69.73,   4.78)   50.53                70
 01/07/2023   22:36:56   (  70.62,-163.58) 01/07/2023   22:38:07  (  70.52,-162.96)   25.84                71
 01/07/2023   23:27:33   ( -70.26,   4.30) 01/07/2023   23:27:35  ( -70.28,   4.35)    2.89                 2
 01/08/2023   00:18:13   (  70.00, 172.02) 01/08/2023   00:17:00  (  70.05, 171.69)   14.33                73
 01/10/2023   11:30:56   (  70.94,   2.41) 01/10/2023   11:32:05  (  70.82,   3.95)   57.71                69
 01/10/2023   12:21:27   ( -70.26, 170.81) 01/10/2023   12:21:39  ( -70.26, 170.77)    1.77                12
 01/10/2023   13:12:11   (  70.16, -21.71) 01/10/2023   13:11:03  (  70.13, -21.74)    2.71                68
 01/13/2023   00:24:57   (  71.26, 168.38) 01/13/2023   00:26:03  (  71.15, 170.92)   92.09                66
 01/13/2023   01:15:22   ( -70.27, -22.68) 01/13/2023   01:15:43  ( -70.26, -22.76)    2.99                21
 01/13/2023   02:06:06   (  70.17, 144.79) 01/13/2023   02:05:06  (  70.19, 144.80)    3.07                60