Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 1 25.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2021   08:47:02   (  78.67,  19.49) 01/30/2021   08:48:15  (  78.68,  19.40)    2.24                73
 01/30/2021   09:37:58   ( -78.67,-173.25) 01/30/2021   09:39:00  ( -78.69,-173.35)    3.15                62
 01/30/2021   10:29:02   (  78.69,  -5.90) 01/30/2021   10:29:45  (  78.69,  -6.00)    2.17                43
 01/30/2021   11:19:58   ( -78.69, 161.36) 01/30/2021   11:20:30  ( -78.70, 161.25)    2.54                32
 01/30/2021   12:11:02   (  78.70, -31.29) 01/30/2021   12:11:15  (  78.69, -31.40)    2.74                13
 01/30/2021   13:01:58   ( -78.70, 135.97) 01/30/2021   13:02:00  ( -78.70, 135.85)    2.50                 2
 01/30/2021   13:53:03   (  78.68, -56.93) 01/30/2021   13:52:45  (  78.69, -56.80)    3.18                18
 01/30/2021   14:43:58   ( -78.72, 110.57) 01/30/2021   14:43:30  ( -78.70, 110.45)    3.04                28
 01/30/2021   15:35:03   (  78.70, -82.33) 01/30/2021   15:34:15  (  78.70, -82.19)    2.88                48
 01/30/2021   16:25:59   ( -78.70,  84.94) 01/30/2021   16:25:00  ( -78.71,  85.06)    2.75                59
 01/30/2021   17:17:00   (  78.81,-106.97) 01/30/2021   17:15:48  (  78.81,-108.31)   28.85                72