[Prev][Next][Index][Thread]
(meteorobs) FW: IMO Shower Circ. LINEARIDS
----------
From: Rainer Arlt[SMTP:rarlt@aipdot de]
Sent: Saturday, November 13, 1999 10:45 AM
To: imo-news@egroups.com
Subject: [IMO-News] IMO Shower Circ. LINEARIDS
-------------------------------------
I M O S h o w e r C i r c u l a r
-------------------------------------
Possible Activity from Comet C/1999 J3 LINEAR
A slight chance of meteor shower activity caused by debris from Comet
C/1999 J3 (LINEAR) encouraged quite a few observers to check for
meteors from a radiant position near alpha=175deg, delta=+53deg as
predicted from the orbit of the Comet.
No activity outburst occurred. The below list of individual ZHR
values indicates weak activity all day on November 9, 1999, and
in the evening hours of November 11 near the passage of the node
of the comet's orbit. On several occasions the radiant elevation
was too low for a sensible ZHR value. Due to possible contamination
by sporadic background activity, the activity cannot be reliably
associated with particles from the Comet.
Radar records from Ondrejov, Czech Republic, indicate enhanced
activity between 21h and at least 3h UT on November 11/12 comared
with the day before (see http://sunkl.asudot cas.cz/~stork/linearids.html).
The activity is associated with faint meteors, possibly beyond the
visual range. No clear enhancement appears in the forward scatter data
by Kazuhiro Sizuki (see http://www.tcp-ip.or.jp/~kaze/data/htyk9911.htm).
-------------------------------------------------------------------------
Date Period UT LM LIN nonLIN hR ZHR Observer
-------------------------------------------------------------------------
Nov 08 1335-1415 6.0 2 3 4 - Qi Rui (China)
Nov 08 1441-1528 6.0 0 6 0 Qi Rui (China)
Nov 08 1620-1750 6.0 3 15 18 9 Qi Rui (China)
Nov 08 1830-2027 6.0 0 14 0 Qi Rui (China)
Nov 09 0330-0430 5.1 0 3 0 Peter Detterline (USA)
Nov 09 0746-0846 5.6 1 8 38 3 Peter Detterline (USA)
Nov 09 0846-0946 5.4 1 7 48 5 Peter Detterline (USA)
Nov 09 2220-2321 5.8 2 10 22 9 Alastair McBeath (UK)
Nov 09 2322-0022 5.8 2 10 26 8 Alastair McBeath (UK)
Nov 10 0022-0122 5.8 2 12 31 7 Alastair McBeath (UK)
Nov 10 0123-0228 5.8 0 18 0 Alastair McBeath (UK)
Nov 10 0655-0755 5.1 0 8 0 Mark Davis (USA)
Nov 10 0755-0855 5.2 0 8 32 0 Mark Davis (USA)
Nov 10 0855-0955 5.3 0 8 0 Mark Davis (USA)
Nov 10 1830-1900 4.0 0 3 17 0 C.L. Chan (Hong Kong)
Nov 10 2200-0000 6.0 (3) 8 - Ulhas Deshpande et al. (India)
Nov 11 0001-0107 5.7 0 12 21 0 Joseph Zammit (Malta)
Nov 10 2323-0423 5.9 7 55 32 4 Martin Galea (Malta)
Nov 11 0257-0424 6.0 2 17 48 3 Joseph Zammit (Malta)
Nov 11 0356-0508 6.0 0 7 44 0 Alfredo Pereira (Portugal)
Nov 11 0330-0715 5.8 1 9 ~0 - Mike Linnolt (USA)
Nov 11 0701-0801 5.3 0 7 0 Mark Davis (USA)
Nov 11 0801-0921 5.4 0 10 0 Mark Davis (USA)
Nov 11 1845-1913 5.8 0 2 0 Qi Rui (China)
Nov 11 1900-2000 - 0 19 0 Peter Zimnikoval et al. (Slovakia)
Nov 11 1910-2015 6.1 1 7 15 5 Jurgen Rendtel (Germany)
Nov 11 1913-2014 5.8 1 12 40 3 Qi Rui (China)
Nov 11 1900-2100 4.8 0 5 2 - J. Marques, R. Afonso (Portugal)
Nov 11 1900-2115 5.9 0 14 15 0 Frank Enzlein (Germany)
Nov 11 1900-2130 5.8 0 15 15 0 Nikolai Wuensche (Germany)
Nov 11 2115-2130 5.8 1 5 55 10 Qi Rui (China)
Nov 11 2200-2300 6.0 (5) 8 - Ulhas Deshpande et al. (India)
Nov 12 0022-0320 6.0 2 33 32 2 Umberto Mule Stagno (Malta)
Nov 12 0020-0324 5.8 2 41 33 2 Joseph Zammit (Malta)
Nov 12 0020-0340 5.9 3 39 34 3 Martin Galea (Malta)
-------------------------------------------------------------------------
I would like to thank all the above observers for their efforts
and swift reports, and I hope I did not overlook any message in
this busy time before the Leonids.
Rainer Arlt, 1999 November 13
-----------------------------
NOTE: The WWW server of the IMO is down, probably until Monday, for
unknown reasons. Its site is alarm secured and cannot be accessed
before Monday. Please apologize for the inconvenience.
IMO-news messages should be directly sent to the distributing
server at: imo-news@eGroups.com
------------------------------------------------------------------------
A shopper's dream come true! Find practically anything on earth at eBay!
Come and browse the more than 2 million items up for bid at any time.
You never know what you might find at eBay!
http://clickhere.egroups.com/click/1140
To unsubscribe from IMO-News, send a blank message to
imo-news-unsubscribe@egroups.com, or visit
www.e-groups.com/list/imo-news.
------------------------------------------------------------------------
-- Check out your group's private Chat room
-- http://www.egroups.com/ChatPage?listName=imo-news&m=1
To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at:
http://www.tiacdot net/users/lewkaren/meteorobs/subscribe.html