This page shows automated results of the Perseids 2008, based on visual data entered through theIMO electronic report form.Send your feedback regarding this page toGeert Barentsen or visit theproject pages.Note that these automated results may not be suitable for scientific use!
Page generated: 2009 June 6 at 0:54 UT.
ZHRmax = 116 based on 28527 Perseids in 3943 data intervals, assuming fixed population index r = 2.1 and zenith correction 1/sin(hR).
Time (UT) | Solarlon | nINT | nPER | ZHR | |
---|---|---|---|---|---|
2008-07-25 00:07 | 122.315 | 1 | 0 | 3 | +-3 |
2008-07-25 23:37 | 123.251 | 23 | 29 | 6 | +-1 |
2008-07-26 23:33 | 124.204 | 53 | 124 | 8 | +-1 |
2008-07-27 07:49 | 124.533 | 1 | 2 | 5 | +-3 |
2008-07-27 23:37 | 125.162 | 71 | 192 | 9 | +-1 |
2008-07-29 01:12 | 126.181 | 108 | 325 | 9 | +-0 |
2008-07-29 18:40 | 126.878 | 6 | 15 | 9 | +-2 |
2008-07-30 00:43 | 127.119 | 78 | 241 | 9 | +-1 |
2008-07-30 20:04 | 127.889 | 18 | 65 | 10 | +-1 |
2008-07-31 01:40 | 128.113 | 93 | 325 | 10 | +-1 |
2008-07-31 23:57 | 129.001 | 62 | 201 | 11 | +-1 |
2008-08-01 09:20 | 129.375 | 4 | 20 | 12 | +-3 |
2008-08-01 23:41 | 129.948 | 88 | 389 | 13 | +-1 |
2008-08-02 09:00 | 130.319 | 1 | 3 | 16 | +-8 |
2008-08-03 00:25 | 130.935 | 42 | 236 | 13 | +-1 |
2008-08-03 17:36 | 131.620 | 20 | 65 | 15 | +-2 |
2008-08-04 01:45 | 131.946 | 68 | 367 | 12 | +-1 |
2008-08-04 19:18 | 132.646 | 12 | 41 | 12 | +-2 |
2008-08-05 00:41 | 132.861 | 76 | 352 | 16 | +-1 |
2008-08-05 23:29 | 133.771 | 67 | 327 | 16 | +-1 |
2008-08-06 22:01 | 134.670 | 114 | 502 | 16 | +-1 |
2008-08-07 01:11 | 134.797 | 82 | 431 | 17 | +-1 |
2008-08-07 22:03 | 135.630 | 87 | 504 | 17 | +-1 |
2008-08-08 03:20 | 135.842 | 33 | 255 | 19 | +-1 |
2008-08-08 23:26 | 136.645 | 97 | 503 | 23 | +-1 |
2008-08-09 07:34 | 136.969 | 13 | 97 | 21 | +-2 |
2008-08-09 21:44 | 137.536 | 68 | 501 | 23 | +-1 |
2008-08-09 23:46 | 137.617 | 61 | 503 | 24 | +-1 |
2008-08-10 02:16 | 137.716 | 66 | 444 | 25 | +-1 |
2008-08-10 21:28 | 138.484 | 61 | 503 | 30 | +-1 |
2008-08-10 22:51 | 138.539 | 67 | 509 | 28 | +-1 |
2008-08-10 23:48 | 138.577 | 74 | 585 | 28 | +-1 |
2008-08-11 00:52 | 138.620 | 67 | 680 | 32 | +-1 |
2008-08-11 01:53 | 138.660 | 55 | 510 | 36 | +-2 |
2008-08-11 07:25 | 138.882 | 29 | 237 | 34 | +-2 |
2008-08-11 21:29 | 139.444 | 94 | 506 | 46 | +-2 |
2008-08-11 22:32 | 139.486 | 203 | 889 | 43 | +-1 |
2008-08-11 23:30 | 139.525 | 233 | 1120 | 48 | +-1 |
2008-08-12 00:25 | 139.561 | 153 | 1028 | 49 | +-2 |
2008-08-12 01:31 | 139.606 | 111 | 1086 | 68 | +-2 |
2008-08-12 02:36 | 139.649 | 80 | 517 | 68 | +-3 |
2008-08-12 04:35 | 139.728 | 99 | 502 | 71 | +-3 |
2008-08-12 07:32 | 139.846 | 58 | 502 | 68 | +-3 |
2008-08-12 09:17 | 139.916 | 54 | 503 | 78 | +-3 |
2008-08-12 17:05 | 140.228 | 59 | 506 | 54 | +-2 |
2008-08-12 22:41 | 140.452 | 61 | 503 | 67 | +-3 |
2008-08-12 23:37 | 140.489 | 167 | 1646 | 77 | +-2 |
2008-08-13 00:34 | 140.527 | 218 | 2764 | 90 | +-2 |
2008-08-13 01:33 | 140.566 | 224 | 3608 | 113 | +-2 |
2008-08-13 02:23 | 140.600 | 81 | 1024 | 116 | +-4 |
2008-08-13 05:20 | 140.718 | 45 | 500 | 73 | +-3 |
2008-08-13 11:19 | 140.957 | 20 | 198 | 41 | +-3 |
2008-08-13 23:47 | 141.455 | 57 | 510 | 33 | +-1 |
2008-08-14 02:01 | 141.545 | 30 | 441 | 37 | +-2 |
2008-08-14 20:48 | 142.296 | 3 | 3 | 13 | +-6 |
2008-08-16 01:50 | 143.458 | 3 | 26 | 17 | +-3 |
2008-08-18 20:00 | 146.108 | 1 | 2 | 13 | +-8 |
2008-08-18 21:30 | 146.168 | 2 | 8 | 18 | +-6 |
2008-08-19 23:43 | 147.219 | 6 | 14 | 9 | +-2 |
2008-08-20 14:15 | 147.802 | 2 | 4 | 9 | +-4 |
2008-08-20 23:00 | 148.153 | 5 | 19 | 12 | +-3 |
2008-08-21 21:46 | 149.066 | 3 | 0 | 1 | +-1 |
2008-08-22 23:11 | 150.087 | 2 | 5 | 7 | +-3 |
2008-08-23 22:12 | 151.011 | 3 | 10 | 13 | +-4 |
For each estimation interval: time is the middle of the interval, nINT is the number of observing periods and nPER is the number of Perseids involved. ZHR = (1 + sum nPER) / sum(Teff/C) where Teff is the effective observing time and C is the total correction for limiting magnitude,clouds and zenith correction. The solar longitudes refer to equinox J2000.0.
ZHRmax = 131 based on 21353 Perseids in 2399 data intervals, assuming fixed population index r = 2.1 and zenith correction 1/sin(hR).
Time (UT) | Solarlon | nINT | nPER | ZHR | |
---|---|---|---|---|---|
2008-08-10 21:04 | 138.468 | 35 | 252 | 25 | +-2 |
2008-08-10 22:00 | 138.505 | 26 | 251 | 36 | +-2 |
2008-08-10 22:36 | 138.529 | 38 | 253 | 29 | +-2 |
2008-08-10 23:10 | 138.552 | 29 | 256 | 28 | +-2 |
2008-08-10 23:35 | 138.569 | 42 | 257 | 26 | +-2 |
2008-08-11 00:04 | 138.588 | 29 | 258 | 27 | +-2 |
2008-08-11 00:31 | 138.606 | 26 | 261 | 34 | +-2 |
2008-08-11 00:55 | 138.622 | 28 | 256 | 30 | +-2 |
2008-08-11 01:16 | 138.636 | 19 | 254 | 38 | +-2 |
2008-08-11 01:40 | 138.651 | 26 | 256 | 30 | +-2 |
2008-08-11 02:14 | 138.675 | 28 | 256 | 43 | +-3 |
2008-08-11 07:44 | 138.894 | 27 | 214 | 34 | +-2 |
2008-08-11 21:07 | 139.429 | 49 | 258 | 42 | +-3 |
2008-08-11 21:54 | 139.461 | 48 | 250 | 50 | +-3 |
2008-08-11 22:15 | 139.474 | 81 | 252 | 40 | +-3 |
2008-08-11 22:36 | 139.488 | 58 | 310 | 46 | +-3 |
2008-08-11 22:51 | 139.499 | 56 | 272 | 45 | +-3 |
2008-08-11 23:07 | 139.509 | 58 | 289 | 48 | +-3 |
2008-08-11 23:21 | 139.519 | 60 | 308 | 51 | +-3 |
2008-08-11 23:37 | 139.529 | 55 | 263 | 51 | +-3 |
2008-08-11 23:52 | 139.539 | 62 | 291 | 41 | +-2 |
2008-08-12 00:07 | 139.549 | 58 | 262 | 49 | +-3 |
2008-08-12 00:20 | 139.558 | 42 | 287 | 45 | +-3 |
2008-08-12 00:38 | 139.570 | 28 | 258 | 51 | +-3 |
2008-08-12 00:55 | 139.581 | 31 | 261 | 51 | +-3 |
2008-08-12 01:11 | 139.592 | 29 | 289 | 72 | +-4 |
2008-08-12 01:27 | 139.602 | 30 | 282 | 68 | +-4 |
2008-08-12 01:42 | 139.613 | 26 | 252 | 62 | +-4 |
2008-08-12 01:55 | 139.621 | 24 | 251 | 73 | +-5 |
2008-08-12 02:17 | 139.636 | 38 | 252 | 70 | +-4 |
2008-08-12 02:55 | 139.661 | 41 | 259 | 66 | +-4 |
2008-08-12 03:59 | 139.704 | 62 | 251 | 61 | +-4 |
2008-08-12 05:35 | 139.768 | 37 | 251 | 86 | +-5 |
2008-08-12 07:02 | 139.826 | 30 | 261 | 68 | +-4 |
2008-08-12 08:06 | 139.869 | 29 | 260 | 70 | +-4 |
2008-08-12 08:51 | 139.898 | 31 | 255 | 77 | +-5 |
2008-08-12 10:01 | 139.945 | 26 | 263 | 76 | +-5 |
2008-08-12 13:39 | 140.091 | 28 | 251 | 67 | +-4 |
2008-08-12 21:39 | 140.410 | 30 | 261 | 45 | +-3 |
2008-08-12 22:32 | 140.446 | 35 | 250 | 76 | +-5 |
2008-08-12 23:01 | 140.465 | 29 | 250 | 60 | +-4 |
2008-08-12 23:16 | 140.475 | 35 | 306 | 88 | +-5 |
2008-08-12 23:33 | 140.486 | 47 | 390 | 66 | +-3 |
2008-08-12 23:47 | 140.496 | 53 | 640 | 78 | +-3 |
2008-08-13 00:03 | 140.506 | 52 | 581 | 83 | +-3 |
2008-08-13 00:17 | 140.515 | 52 | 609 | 80 | +-3 |
2008-08-13 00:33 | 140.526 | 44 | 487 | 70 | +-3 |
2008-08-13 00:47 | 140.536 | 59 | 887 | 106 | +-4 |
2008-08-13 01:02 | 140.546 | 64 | 985 | 107 | +-3 |
2008-08-13 01:18 | 140.556 | 57 | 1041 | 117 | +-4 |
2008-08-13 01:33 | 140.566 | 52 | 728 | 120 | +-4 |
2008-08-13 01:47 | 140.575 | 60 | 919 | 105 | +-3 |
2008-08-13 02:02 | 140.586 | 48 | 730 | 131 | +-5 |
2008-08-13 02:16 | 140.595 | 29 | 445 | 111 | +-5 |
2008-08-13 02:39 | 140.610 | 31 | 256 | 110 | +-7 |
2008-08-13 03:26 | 140.641 | 20 | 251 | 85 | +-5 |
2008-08-13 06:43 | 140.773 | 26 | 250 | 64 | +-4 |
2008-08-13 11:19 | 140.957 | 20 | 198 | 41 | +-3 |
2008-08-13 23:10 | 141.431 | 33 | 250 | 31 | +-2 |
2008-08-14 00:38 | 141.489 | 24 | 260 | 35 | +-2 |
2008-08-14 01:31 | 141.525 | 19 | 257 | 38 | +-2 |
2008-08-14 02:20 | 141.558 | 10 | 160 | 39 | +-3 |
For each estimation interval: time is the middle of the interval, nINT is the number of observing periods and nPER is the number of Perseids involved. ZHR = (1 + sum nPER) / sum(Teff/C) where Teff is the effective observing time and C is the total correction for limiting magnitude,clouds and zenith correction. The solar longitudes refer to equinox J2000.0.
Data has been received from 238 observers in 33 countries. Thank you for your efforts!
Create your own analysis!
Rate intervals:per2008_rate.csv (CSV-format).
Magnitude distributions:per2008_magn.csv (CSV-format).