Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 5 5.  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)
 05/08/2021   09:47:54   (  68.60,  31.24) 05/08/2021   09:48:57  (  68.60,  31.26)    1.12                63
 05/08/2021   10:38:35   ( -68.46,-161.25) 05/08/2021   10:38:28  ( -68.44,-161.30)    3.00                 7
 05/08/2021   11:29:12   (  67.95,   6.70) 05/08/2021   11:28:01  (  67.99,   5.81)   37.23                71
 05/11/2021   02:04:51   (  68.57, 147.04) 05/11/2021   02:05:24  (  68.57, 147.11)    2.80                33
 05/11/2021   02:55:32   ( -68.43, -45.46) 05/11/2021   02:54:55  ( -68.41, -45.46)    2.19                37
 05/13/2021   17:31:09   ( -68.94,  95.01) 05/13/2021   17:32:21  ( -68.82,  95.65)   28.84                72
 05/13/2021   18:21:47   (  68.50, -97.10) 05/13/2021   18:21:52  (  68.48, -97.12)    2.30                 5
 05/13/2021   19:12:28   ( -68.35,  70.41) 05/13/2021   19:11:22  ( -68.38,  70.38)    3.14                66
 05/16/2021   09:48:00   ( -68.59,-148.77) 05/16/2021   09:48:51  ( -68.62,-148.72)    3.40                51
 05/16/2021   10:38:43   (  68.43,  18.76) 05/16/2021   10:38:19  (  68.44,  18.71)    2.51                24
 05/16/2021   11:29:11   ( -67.58,-172.86) 05/16/2021   11:28:02  ( -67.62,-174.62)   74.90                69
 05/19/2021   01:14:28   (  69.42, 158.53) 05/19/2021   01:15:36  (  69.29, 160.37)   73.88                68
 05/19/2021   02:04:55   ( -68.52, -32.91) 05/19/2021   02:05:18  ( -68.52, -32.96)    1.99                23
 05/19/2021   02:55:39   (  68.41, 134.54) 05/19/2021   02:54:45  (  68.40, 134.53)    1.73                54