Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 3 28.  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   ( -69.16,-149.55) 03/29/2021   09:49:19  ( -69.04,-148.16)   56.74                69
 03/29/2021   10:38:43   (  68.43,  18.73) 03/29/2021   10:38:55  (  68.43,  18.73)    0.14                12
 03/29/2021   11:29:24   ( -68.31,-173.79) 03/29/2021   11:28:25  ( -68.32,-173.77)    1.45                59
 04/01/2021   02:04:52   ( -68.50, -32.89) 04/01/2021   02:05:55  ( -68.52, -32.93)    2.29                63
 04/01/2021   02:55:37   (  68.42, 134.52) 04/01/2021   02:55:22  (  68.40, 134.58)    3.04                15
 04/01/2021   03:46:10   ( -67.87, -57.45) 04/01/2021   03:44:59  ( -67.90, -58.38)   39.03                71
 04/03/2021   18:21:46   ( -68.49,  82.90) 04/03/2021   18:22:22  ( -68.48,  82.91)    0.87                36
 04/03/2021   19:12:30   (  68.36,-109.62) 04/03/2021   19:11:49  (  68.37,-109.58)    1.72                41
 04/06/2021   09:48:04   (  68.88,  30.83) 04/06/2021   09:49:15  (  68.77,  31.52)   30.08                71
 04/06/2021   10:38:39   ( -68.43,-161.24) 04/06/2021   10:38:49  ( -68.45,-161.25)    1.94                10
 04/06/2021   11:29:23   (  68.30,   6.23) 04/06/2021   11:28:16  (  68.33,   6.25)    2.84                67
 04/09/2021   02:04:50   (  68.51, 147.12) 04/09/2021   02:05:45  (  68.50, 147.06)    2.18                55
 04/09/2021   02:55:32   ( -68.42, -45.46) 04/09/2021   02:55:15  ( -68.40, -45.42)    2.82                17
 04/09/2021   03:46:03   (  67.60, 122.89) 04/09/2021   03:44:54  (  67.60, 121.29)   67.50                69