Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2018 12 22.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-20) NOAA-20 Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/22/2018   11:04:13   ( -68.31,-167.49) 12/22/2018   11:05:16  ( -68.31,-167.54)    2.27                63
 12/22/2018   11:54:57   (  68.18,  -0.01) 12/22/2018   11:54:43  (  68.20,  -0.03)    2.54                14
 12/22/2018   12:45:31   ( -67.67, 167.94) 12/22/2018   12:44:20  ( -67.70, 167.02)   39.02                71
 12/25/2018   03:21:09   ( -68.28, -51.69) 12/25/2018   03:21:45  ( -68.27, -51.71)    1.78                36
 12/25/2018   04:11:53   (  68.16, 115.78) 12/25/2018   04:11:12  (  68.16, 115.80)    0.85                41
 12/27/2018   18:47:30   (  68.67,-103.75) 12/27/2018   18:48:41  (  68.55,-103.12)   28.63                71
 12/27/2018   19:38:05   ( -68.20,  64.18) 12/27/2018   19:38:15  ( -68.23,  64.12)    3.42                10
 12/27/2018   20:28:49   (  68.08,-128.36) 12/27/2018   20:27:42  (  68.11,-128.37)    3.39                67
 12/30/2018   11:04:21   (  68.33,  12.47) 12/30/2018   11:05:14  (  68.34,  12.50)    1.43                53
 12/30/2018   11:55:02   ( -68.18, 179.97) 12/30/2018   11:54:45  ( -68.18, 179.94)    1.41                17
 12/30/2018   12:45:33   (  67.36, -11.71) 12/30/2018   12:44:24  (  67.39, -13.32)   69.14                69
 01/02/2019   03:21:17   (  68.26, 128.32) 01/02/2019   03:21:44  (  68.28, 128.31)    2.71                27
 01/02/2019   04:11:59   ( -68.16, -64.23) 01/02/2019   04:11:14  ( -68.18, -64.18)    3.40                45
 01/04/2019   18:47:32   ( -68.51,  76.45) 01/04/2019   18:48:44  ( -68.45,  76.76)   14.03                72
 01/04/2019   19:38:13   (  68.24,-115.89) 01/04/2019   19:38:13  (  68.22,-115.88)    2.08                 0
 01/04/2019   20:28:54   ( -68.09,  51.63) 01/04/2019   20:27:44  ( -68.07,  51.57)    2.91                70