Simultaneous Nadir Overpasses (SNOs) between METOP-B and NPP
TLE Epoch: 2021 3 4.  Predictions up to the next  14.0 days:

     Date     Time(METOP-B) METOP-B Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/17/2021   04:20:53   (  73.43, 108.08) 03/17/2021   04:19:46  (  73.45, 105.28)   88.61                67
 03/17/2021   05:11:37   ( -73.34, -84.81) 03/17/2021   05:10:28  ( -73.35, -87.17)   75.40                69
 03/17/2021   06:02:20   (  73.16,  82.13) 03/17/2021   06:01:10  (  73.15,  80.57)   50.40                70
 03/17/2021   06:53:04   ( -73.06,-110.75) 03/17/2021   06:51:52  ( -73.05,-111.90)   37.35                72
 03/17/2021   07:43:48   (  72.83,  56.09) 03/17/2021   07:42:34  (  72.86,  55.83)    9.23                74
 03/17/2021   08:34:31   ( -72.79,-136.67) 03/17/2021   08:33:16  ( -72.76,-136.65)    3.32                75
 03/17/2021   09:25:11   (  72.76,  30.60) 03/17/2021   09:24:02  (  72.76,  30.65)    1.79                69
 03/17/2021   10:15:53   ( -72.76,-162.06) 03/17/2021   10:14:46  ( -72.76,-162.03)    0.71                67
 03/17/2021   11:06:32   (  72.78,   5.32) 03/17/2021   11:05:32  (  72.77,   5.27)    2.57                60
 03/17/2021   11:57:15   ( -72.74, 172.56) 03/17/2021   11:56:16  ( -72.77, 172.58)    3.24                59
 03/17/2021   12:47:54   (  72.76, -20.07) 03/17/2021   12:47:02  (  72.77, -20.12)    2.27                52
 03/17/2021   13:38:36   ( -72.77, 147.27) 03/17/2021   13:37:46  ( -72.78, 147.19)    2.86                50
 03/17/2021   14:29:16   (  72.74, -45.45) 03/17/2021   14:28:31  (  72.73, -45.40)    1.96                45
 03/17/2021   15:19:58   ( -72.75, 121.89) 03/17/2021   15:19:15  ( -72.73, 121.91)    1.81                43
 03/17/2021   16:10:38   (  72.72, -70.84) 03/17/2021   16:10:01  (  72.74, -70.79)    2.71                37
 03/17/2021   17:01:20   ( -72.72,  96.50) 03/17/2021   17:00:45  ( -72.74,  96.52)    1.66                35
 03/17/2021   17:51:59   (  72.74, -96.12) 03/17/2021   17:51:31  (  72.74, -96.18)    1.87                28
 03/17/2021   18:42:41   ( -72.75,  71.22) 03/17/2021   18:42:15  ( -72.74,  71.13)    2.94                26
 03/17/2021   19:33:21   (  72.72,-121.51) 03/17/2021   19:33:00  (  72.70,-121.46)    3.14                21
 03/17/2021   20:24:03   ( -72.73,  45.83) 03/17/2021   20:23:44  ( -72.70,  45.85)    3.38                19
 03/17/2021   21:14:43   (  72.70,-146.89) 03/17/2021   21:14:30  (  72.70,-146.85)    1.66                13
 03/17/2021   22:05:25   ( -72.71,  20.45) 03/17/2021   22:05:14  ( -72.71,  20.47)    0.63                11
 03/17/2021   22:56:04   (  72.73,-172.18) 03/17/2021   22:56:00  (  72.71,-172.23)    2.70                 4
 03/17/2021   23:46:47   ( -72.68,  -4.94) 03/17/2021   23:46:44  ( -72.71,  -4.92)    3.15                 3
 03/18/2021   00:37:26   (  72.70, 162.44) 03/18/2021   00:37:30  (  72.72, 162.38)    2.32                 4
 03/18/2021   01:28:08   ( -72.71, -30.22) 03/18/2021   01:28:14  ( -72.72, -30.31)    2.94                 6
 03/18/2021   02:18:48   (  72.68, 137.05) 03/18/2021   02:18:59  (  72.67, 137.10)    1.89                11