Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and FY3D TLE Epoch: 2025 10 11. Predictions up to the next 14.0 days: Date Time(NOAA-21) NOAA-21 Lat/Lon Date Time(FY3D) FY3D Lat/Lon Distance(km) Time Diff(sec) 10/21/2025 07:40:16 ( 81.01, 11.21) 10/21/2025 07:41:20 ( 80.96, 15.65) 77.51 64 10/21/2025 09:21:42 ( 80.95, -12.77) 10/21/2025 09:22:53 ( 80.93, -11.06) 30.08 71 10/21/2025 11:03:09 ( 80.90, -37.14) 10/21/2025 11:04:24 ( 80.91, -37.03) 2.17 75 10/21/2025 11:54:02 ( -81.04, 127.04) 10/21/2025 11:55:03 ( -80.97, 132.75) 99.45 61 10/21/2025 12:44:39 ( 80.91, -62.59) 10/21/2025 12:45:54 ( 80.90, -62.62) 0.57 75 10/21/2025 13:35:28 ( -80.98, 103.06) 10/21/2025 13:36:36 ( -80.94, 106.04) 52.24 68 10/21/2025 14:26:09 ( 80.91, -88.04) 10/21/2025 14:27:24 ( 80.90, -88.21) 3.31 75 10/21/2025 15:16:54 ( -80.92, 79.06) 10/21/2025 15:18:09 ( -80.90, 79.34) 5.20 75 10/21/2025 16:07:39 ( 80.91,-113.49) 10/21/2025 16:08:53 ( 80.90,-113.43) 1.63 74 10/21/2025 16:58:23 ( -80.91, 53.97) 10/21/2025 16:59:38 ( -80.91, 54.12) 2.59 75 10/21/2025 17:49:08 ( 80.90,-138.58) 10/21/2025 17:50:22 ( 80.91,-138.65) 1.50 74 10/21/2025 18:39:53 ( -80.91, 28.52) 10/21/2025 18:41:08 ( -80.90, 28.53) 0.88 75 10/21/2025 19:30:38 ( 80.90,-164.03) 10/21/2025 19:31:51 ( 80.91,-163.87) 2.83 73 10/21/2025 20:21:22 ( -80.90, 3.43) 10/21/2025 20:22:37 ( -80.91, 3.30) 2.49 75 10/21/2025 21:12:08 ( 80.91, 170.52) 10/21/2025 21:13:21 ( 80.90, 170.54) 0.38 73 10/21/2025 22:02:52 ( -80.90, -22.02) 10/21/2025 22:04:06 ( -80.91, -21.92) 2.16 74 10/21/2025 22:53:38 ( 80.91, 145.07) 10/21/2025 22:54:51 ( 80.90, 144.95) 2.70 73 10/21/2025 23:44:22 ( -80.90, -47.47) 10/21/2025 23:45:36 ( -80.90, -47.51) 0.72 74 10/22/2025 00:35:08 ( 80.91, 119.62) 10/22/2025 00:36:20 ( 80.90, 119.72) 2.21 72 10/22/2025 01:25:52 ( -80.91, -72.92) 10/22/2025 01:27:05 ( -80.91, -72.73) 3.29 73 10/22/2025 02:16:37 ( 80.90, 94.53) 10/22/2025 02:17:49 ( 80.91, 94.50) 0.87 72 10/22/2025 03:07:22 ( -80.91, -98.36) 10/22/2025 03:08:35 ( -80.90, -98.32) 1.23 73 10/22/2025 03:58:07 ( 80.90, 69.08) 10/22/2025 03:59:19 ( 80.90, 68.91) 3.11 72 10/22/2025 04:48:51 ( -80.90,-123.45) 10/22/2025 04:50:04 ( -80.91,-123.54) 1.86 73 10/22/2025 05:39:37 ( 80.91, 43.63) 10/22/2025 05:40:48 ( 80.90, 43.69) 1.03 71 10/22/2025 06:30:21 ( -80.90,-148.90) 10/22/2025 06:31:33 ( -80.91,-148.76) 2.74 72 10/22/2025 07:21:06 ( 80.89, 18.54) 10/22/2025 07:22:17 ( 80.91, 18.47) 2.12 71 10/22/2025 08:11:51 ( -80.90,-174.35) 10/22/2025 08:13:03 ( -80.90,-174.35) 0.04 72 10/22/2025 09:02:37 ( 80.91, -7.27) 10/22/2025 09:03:47 ( 80.90, -7.12) 2.87 70 10/22/2025 09:53:21 ( -80.91, 160.20) 10/22/2025 09:54:33 ( -80.90, 160.06) 2.72 72 10/22/2025 10:44:06 ( 80.90, -32.35) 10/22/2025 10:45:16 ( 80.91, -32.35) 0.57 70 10/22/2025 11:34:51 ( -80.91, 134.75) 10/22/2025 11:36:02 ( -80.90, 134.84) 1.80 71 10/22/2025 12:25:36 ( 80.90, -57.81) 10/22/2025 12:26:46 ( 80.90, -57.94) 2.41 70 10/22/2025 13:16:20 ( -80.90, 109.66) 10/22/2025 13:17:31 ( -80.91, 109.61) 1.30 71 10/22/2025 14:07:05 ( 80.91, -83.26) 10/22/2025 14:08:14 ( 80.90, -83.16) 1.75 69 10/22/2025 14:57:49 ( -80.90, 84.21) 10/22/2025 14:59:00 ( -80.90, 84.02) 3.30 71 10/22/2025 15:48:34 ( 80.89,-108.35) 10/22/2025 15:49:43 ( 80.91,-108.38) 1.64 69 10/22/2025 16:39:19 ( -80.90, 58.76) 10/22/2025 16:40:29 ( -80.90, 58.80) 0.69 70 10/22/2025 17:30:04 ( 80.90,-133.80) 10/22/2025 17:31:13 ( 80.90,-133.97) 3.15 69 10/22/2025 18:20:49 ( -80.91, 33.31) 10/22/2025 18:21:59 ( -80.90, 33.21) 2.14 70 10/22/2025 19:11:34 ( 80.90,-159.25) 10/22/2025 19:12:42 ( 80.91,-159.20) 0.99 68 10/22/2025 20:02:19 ( -80.91, 7.86) 10/22/2025 20:03:28 ( -80.90, 7.99) 2.45 69 10/22/2025 20:53:04 ( 80.91, 175.30) 10/22/2025 20:54:12 ( 80.90, 175.21) 1.75 68 10/22/2025 21:43:48 ( -80.90, -17.23) 10/22/2025 21:44:57 ( -80.91, -17.23) 0.94 69 10/22/2025 22:34:34 ( 80.91, 149.85) 10/22/2025 22:35:41 ( 80.90, 149.99) 2.49 67 10/22/2025 23:25:18 ( -80.90, -42.68) 10/22/2025 23:26:27 ( -80.90, -42.82) 2.61 69 10/23/2025 00:16:03 ( 80.90, 124.76) 10/23/2025 00:17:10 ( 80.91, 124.77) 1.40 67 10/23/2025 01:06:48 ( -80.91, -68.13) 10/23/2025 01:07:56 ( -80.90, -68.05) 1.39 68 10/23/2025 01:57:33 ( 80.90, 99.31) 10/23/2025 01:58:40 ( 80.90, 99.18) 2.41 67 10/23/2025 02:48:18 ( -80.91, -93.58) 10/23/2025 02:49:26 ( -80.90, -93.64) 1.66 68 10/23/2025 03:39:03 ( 80.90, 73.86) 10/23/2025 03:40:09 ( 80.91, 73.95) 1.65 66 10/23/2025 04:29:48 ( -80.91,-119.02) 10/23/2025 04:30:55 ( -80.90,-118.86) 3.11 67 10/23/2025 05:20:33 ( 80.91, 48.41) 10/23/2025 05:21:39 ( 80.90, 48.36) 1.20 66 10/23/2025 06:11:17 ( -80.90,-144.12) 10/23/2025 06:12:24 ( -80.91,-144.08) 1.03 67 10/23/2025 07:02:03 ( 80.91, 22.96) 10/23/2025 07:03:08 ( 80.90, 23.14) 3.22 65 10/23/2025 07:52:47 ( -80.90,-169.56) 10/23/2025 07:53:54 ( -80.90,-169.67) 1.93 67 10/23/2025 08:43:32 ( 80.90, -2.13) 10/23/2025 08:44:37 ( 80.91, -2.08) 1.52 65 10/23/2025 09:34:17 ( -80.91, 164.99) 10/23/2025 09:35:23 ( -80.90, 165.10) 2.09 66 10/23/2025 10:25:02 ( 80.90, -27.58) 10/23/2025 10:26:07 ( 80.90, -27.68) 1.68 65 10/23/2025 11:15:47 ( -80.91, 139.54) 10/23/2025 11:16:53 ( -80.90, 139.51) 1.40 66 10/23/2025 12:06:32 ( 80.90, -53.03) 10/23/2025 12:07:36 ( 80.91, -52.90) 2.35 64 10/23/2025 12:57:16 ( -80.90, 114.45) 10/23/2025 12:58:22 ( -80.90, 114.29) 2.80 66 10/23/2025 13:48:02 ( 80.91, -78.48) 10/23/2025 13:49:06 ( 80.90, -78.49) 0.95 64 10/23/2025 14:38:46 ( -80.90, 89.00) 10/23/2025 14:39:51 ( -80.91, 89.07) 1.48 65 10/23/2025 15:29:31 ( 80.89,-103.57) 10/23/2025 15:30:35 ( 80.90,-103.71) 2.69 64 10/23/2025 16:20:16 ( -80.90, 63.55) 10/23/2025 16:21:21 ( -80.90, 63.48) 1.28 65 10/23/2025 17:11:01 ( 80.90,-129.02) 10/23/2025 17:12:04 ( 80.91,-128.93) 1.93 63 10/23/2025 18:01:46 ( -80.91, 38.10) 10/23/2025 18:02:50 ( -80.90, 38.25) 2.78 64 10/23/2025 18:52:31 ( 80.90,-154.47) 10/23/2025 18:53:34 ( 80.90,-154.53) 0.94 63 10/23/2025 19:43:16 ( -80.91, 12.65) 10/23/2025 19:44:20 ( -80.90, 12.66) 1.47 64 10/23/2025 20:34:01 ( 80.91,-179.92) 10/23/2025 20:35:03 ( 80.91,-179.75) 3.07 62 10/23/2025 21:24:45 ( -80.90, -12.44) 10/23/2025 21:25:49 ( -80.90, -12.56) 2.11 64 10/23/2025 22:15:31 ( 80.91, 154.62) 10/23/2025 22:16:33 ( 80.90, 154.66) 1.22 62 10/23/2025 23:06:15 ( -80.90, -37.89) 10/23/2025 23:07:18 ( -80.91, -37.78) 2.06 63 10/23/2025 23:57:00 ( 80.90, 129.53) 10/23/2025 23:58:02 ( 80.90, 129.43) 1.98 62 10/24/2025 00:47:45 ( -80.90, -63.34) 10/24/2025 00:48:48 ( -80.90, -63.37) 0.73 63 10/24/2025 01:38:30 ( 80.90, 104.08) 10/24/2025 01:39:31 ( 80.91, 104.21) 2.49 61 10/24/2025 02:29:14 ( -80.89, -88.44) 10/24/2025 02:30:17 ( -80.90, -88.60) 3.23 63 10/24/2025 03:20:00 ( 80.90, 78.63) 10/24/2025 03:21:01 ( 80.90, 78.62) 0.26 61 10/24/2025 04:10:45 ( -80.91,-114.24) 10/24/2025 04:11:47 ( -80.90,-114.19) 1.83 62 10/24/2025 05:01:30 ( 80.91, 53.18) 10/24/2025 05:02:31 ( 80.90, 53.03) 3.00 61 10/24/2025 05:52:14 ( -80.90,-139.33) 10/24/2025 05:53:16 ( -80.90,-139.41) 1.43 62 10/24/2025 06:43:00 ( 80.91, 27.73) 10/24/2025 06:44:00 ( 80.90, 27.80) 1.79 60 10/24/2025 07:33:44 ( -80.90,-164.78) 10/24/2025 07:34:45 ( -80.91,-164.63) 2.69 61 10/24/2025 08:24:29 ( 80.90, 2.64) 10/24/2025 08:25:29 ( 80.90, 2.58) 1.29 60 10/24/2025 09:15:14 ( -80.91, 169.77) 10/24/2025 09:16:15 ( -80.90, 169.77) 0.62 61 10/24/2025 10:05:59 ( 80.90, -22.81) 10/24/2025 10:06:58 ( 80.91, -22.64) 3.13 59 10/24/2025 10:56:43 ( -80.89, 144.67) 10/24/2025 10:57:44 ( -80.90, 144.55) 2.58 61 10/24/2025 11:47:29 ( 80.90, -48.26) 10/24/2025 11:48:28 ( 80.90, -48.24) 0.59 59 10/24/2025 12:38:14 ( -80.91, 118.87) 10/24/2025 12:39:14 ( -80.90, 118.96) 2.35 60 10/24/2025 13:28:59 ( 80.91, -73.72) 10/24/2025 13:29:58 ( 80.89, -73.83) 2.46 59 10/24/2025 14:19:43 ( -80.90, 93.77) 10/24/2025 14:20:43 ( -80.90, 93.74) 0.75 60 10/24/2025 15:10:29 ( 80.91, -99.17) 10/24/2025 15:11:27 ( 80.90, -99.05) 2.45 58 10/24/2025 16:01:13 ( -80.90, 68.32) 10/24/2025 16:02:13 ( -80.90, 68.14) 3.26 60 10/24/2025 16:51:57 ( 80.90,-124.26) 10/24/2025 16:52:55 ( 80.90,-124.27) 0.70 58 10/24/2025 17:42:42 ( -80.91, 42.87) 10/24/2025 17:43:41 ( -80.90, 42.92) 1.10 59 10/24/2025 18:33:27 ( 80.90,-149.71) 10/24/2025 18:34:25 ( 80.90,-149.87) 2.83 58 10/24/2025 19:24:11 ( -80.89, 17.78) 10/24/2025 19:25:10 ( -80.90, 17.70) 1.96 59 10/24/2025 20:14:57 ( 80.91,-175.16) 10/24/2025 20:15:54 ( 80.90,-175.09) 1.31 57 10/24/2025 21:05:41 ( -80.90, -7.67) 10/24/2025 21:06:39 ( -80.91, -7.53) 2.84 58 10/24/2025 21:56:26 ( 80.89, 159.75) 10/24/2025 21:57:23 ( 80.91, 159.69) 1.90 57 10/24/2025 22:47:11 ( -80.90, -33.12) 10/24/2025 22:48:09 ( -80.90, -33.12) 0.21 58 10/24/2025 23:37:57 ( 80.91, 133.94) 10/24/2025 23:38:53 ( 80.90, 134.09) 3.16 56 10/25/2025 00:28:41 ( -80.90, -58.57) 10/25/2025 00:29:39 ( -80.90, -58.71) 2.66 58 10/25/2025 01:19:26 ( 80.90, 108.84) 10/25/2025 01:20:22 ( 80.90, 108.87) 0.65 56 10/25/2025 02:10:11 ( -80.91, -84.02) 10/25/2025 02:11:08 ( -80.90, -83.93) 1.74 57 10/25/2025 03:00:56 ( 80.90, 83.39) 10/25/2025 03:01:52 ( 80.90, 83.28) 2.17 56 10/25/2025 03:51:40 ( -80.89,-109.11) 10/25/2025 03:52:37 ( -80.90,-109.16) 1.40 57 10/25/2025 04:42:26 ( 80.91, 57.94) 10/25/2025 04:43:21 ( 80.90, 58.05) 2.05 55 10/25/2025 05:33:10 ( -80.90,-134.56) 10/25/2025 05:34:07 ( -80.90,-134.75) 3.30 57 10/25/2025 06:23:55 ( 80.89, 32.85) 10/25/2025 06:24:50 ( 80.91, 32.83) 1.44 55 10/25/2025 07:14:40 ( -80.90,-160.01) 10/25/2025 07:15:36 ( -80.90,-159.97) 0.69 56 10/25/2025 08:05:25 ( 80.90, 7.40) 10/25/2025 08:06:20 ( 80.90, 7.24) 2.86 55 10/25/2025 08:56:10 ( -80.91, 174.54) 10/25/2025 08:57:06 ( -80.90, 174.43) 2.11 56 10/25/2025 09:46:55 ( 80.90, -18.05) 10/25/2025 09:47:49 ( 80.90, -17.99) 1.20 54 10/25/2025 10:37:40 ( -80.91, 149.09) 10/25/2025 10:38:35 ( -80.90, 149.21) 2.40 55 10/25/2025 11:28:25 ( 80.90, -43.51) 10/25/2025 11:29:19 ( 80.90, -43.58) 1.59 54 10/25/2025 12:19:09 ( -80.90, 123.99) 10/25/2025 12:20:04 ( -80.90, 123.99) 1.01 55 10/25/2025 13:09:55 ( 80.91, -68.96) 10/25/2025 13:10:48 ( 80.90, -68.80) 2.80 53 10/25/2025 14:00:39 ( -80.90, 98.54) 10/25/2025 14:01:34 ( -80.90, 98.39) 2.63 55 10/25/2025 14:51:24 ( 80.89, -94.05) 10/25/2025 14:52:17 ( 80.91, -94.03) 1.27 53 10/25/2025 15:42:09 ( -80.90, 73.09) 10/25/2025 15:43:03 ( -80.90, 73.17) 1.36 54 10/25/2025 16:32:54 ( 80.90,-119.50) 10/25/2025 16:33:47 ( 80.90,-119.62) 2.13 53 10/25/2025 17:23:39 ( -80.91, 47.64) 10/25/2025 17:24:33 ( -80.90, 47.58) 1.68 54 10/25/2025 18:14:24 ( 80.90,-144.95) 10/25/2025 18:15:16 ( 80.90,-144.85) 1.89 52 10/25/2025 19:05:09 ( -80.91, 22.19) 10/25/2025 19:06:02 ( -80.90, 22.35) 3.08 53 10/25/2025 19:55:54 ( 80.91,-170.41) 10/25/2025 19:56:46 ( 80.90,-170.44) 1.21 52 10/25/2025 20:46:38 ( -80.90, -2.90) 10/25/2025 20:47:31 ( -80.90, -2.87) 1.00 53