From: Robert Lunsford, San Diego, CA Date: Tue, 17 Nov 1998 10:53:43 -0800 High clouds rolled into San Diego county Monday evening so it was necessary to travel eastward to obtain clear skies for the Leonid shower. George Zay and I drove eastward nearly to the Arizona border. The skies were still partly cloudy but it was better than home so we gave it a go. We started counting at 11:00 pm local time (even before) Leo was above the horizon. We were rewarded 5 minutes later with two beautiful Leonids that shot overhead and disappeared low in the western sky. These long beautiful meteors continued for the next half hour at a rate of one every two minutes. These meteors were bright orange, often with a dim halo, and their tails were bluish. As Leo rose in the east this meteors became shorter and shorter. Between midnight and 1am rates increased to an average of one per minute. The next two hours produced 91 and 104 Leonids. High clouds began drifting in after 3am and we were forced to quit at 4am. The last hour produced 88 Leonids under thin cirrus. Although this mornings display lacked the brilliant fireballs seen the previous morning there were still many bright meteors to be enjoyed. There were often bursts of 2 and 3 meteors all going in different directions just seconds apart. This show is what I had wildly hope for but never really expected to see. Lets hope the display continues to improve for our friends to the west! November 17, 1998 0700-0800 UT 1.00 6.06 33 LEO 1 NTA 6 SPO 40 TOTAL 0800-0900 UT 1.00 6.16 62 LEO 2 NTA 9 SPO 73 TOTAL 0900-1000 UT 1.00 6.12 91 LEO 3 NTA 7 SPO 101 TOTAL 1000-1100 UT 1.00 5.85 104 LEO 1 NTA 13 SPO 118 TOTAL 1100-1200 UT 1.00 5.22 88 LEO 0 NTA 2 SPO 90 TOTAL TOTALS: 5.00 5.88 378 LEO 7 NTA 37 SPO 422 TOTAL The first column is the period watched in Universal Time (PDT + 8 hours). The second column is the percent of an hour actually spent watching the sky during this period. Time is lost for breaks, plotting, and data entry. The third column is the average limiting magnitude during each period with a minimum of 4 estimates. The last several columns list the activity seen during each period. I was facing southeast at an altitude of 70 degrees. No breaks were taken during this session. LEO = Leonid, NTA = Northern Taurid, and SPO = SPORADIC (random activity). Beginning Temperature/Relative Humidity: 60 F (16 C) 25% Ending Temperature/Relative Humidity: 52 F (11 C) 27% MAGNITUDES: LEO -7 (1) -6 (1) -5 (6) -4 (11) -3 (14) -2 (35) -1 (40) 0 (91) +1 (61) +2 (61) +3 (42) +4 (13) +5 (2) AVERAGE +0.35 NTA -3 (1) 0 (1) +1 (1) +2 (3) +3 (1) AVERAGE +1.00 SPO 0 (1) +1 (2) +2 (10) +3 (14) +4 (9) +5 (1) AVERAGE +2.84