Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 3 27.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 03/29/2021   09:48:10   ( -69.12,-149.49) 03/29/2021   09:49:20  ( -69.03,-148.18)   53.41                70
 03/29/2021   10:38:44   (  68.45,  18.71) 03/29/2021   10:38:55  (  68.47,  18.78)    3.63                11
 03/29/2021   11:29:25   ( -68.32,-173.81) 03/29/2021   11:28:26  ( -68.31,-173.79)    2.20                59
 04/01/2021   02:04:53   ( -68.52, -32.91) 04/01/2021   02:05:56  ( -68.50, -32.95)    2.47                63
 04/01/2021   02:55:37   (  68.38, 134.57) 04/01/2021   02:55:23  (  68.39, 134.56)    0.75                14
 04/01/2021   03:46:10   ( -67.88, -57.47) 04/01/2021   03:44:58  ( -67.94, -58.33)   36.80                72
 04/03/2021   18:21:45   ( -68.45,  82.95) 04/03/2021   18:22:22  ( -68.47,  82.89)    3.20                37
 04/03/2021   19:12:30   (  68.37,-109.64) 04/03/2021   19:11:49  (  68.35,-109.60)    3.04                41
 04/06/2021   09:48:04   (  68.90,  30.82) 04/06/2021   09:49:14  (  68.81,  31.56)   31.41                70
 04/06/2021   10:38:39   ( -68.44,-161.26) 04/06/2021   10:38:49  ( -68.43,-161.27)    1.40                10
 04/06/2021   11:29:23   (  68.31,   6.22) 04/06/2021   11:28:16  (  68.31,   6.23)    0.76                67
 04/09/2021   02:04:51   (  68.52, 147.10) 04/09/2021   02:05:45  (  68.54, 147.11)    2.46                54
 04/09/2021   02:55:32   ( -68.38, -45.40) 04/09/2021   02:55:16  ( -68.38, -45.44)    1.94                16
 04/09/2021   03:46:03   (  67.55, 122.94) 04/09/2021   03:44:54  (  67.64, 121.34)   68.70                69