Perseids 1998: visual observations

team Public Observatory Twente (VST/EPS-Lattrop)

1. January 03/04: Carl Johannink
2. May 03/04: Carl Johannink
3. July 21/22: Carl Johannink
4. July 21/22: Arnold Tukkers
5. July 22/23: Carl Johannink
6. July 22/23: Arnold Tukkers
7. July 24/25: Carl Johannink
8. July 24/25: Arnold Tukkers
9. July 25/26: Carl Johannink
10. July 25/26: Arnold Tukkers
11. July 30/31: Carl Johannink
12. August 02/03: Carl Johannink
Abstract

This page presents
an overview on the
Perseids 1998
by Carl Johannink
and Arnold Tukkers



Observer: Johannink, Carl (IMO-code JOHCA)
Year: 1998
Observing site:   Lat.:        Lon.:
Gronau (Ger.)     52 13'       07 01'

Night:           Time (UT):    Center:   Stream:                   TotalTeff: LM:  Remarks:
January 03/04    03:10 - 04:00 10h / 80 d9 B ; 1 Com ; 2 HB(?) ; 3  15. 0.83  5.5  clouds > 03:55 UT


Observer: Johannink, Carl (IMO-code JOHCA)
Year: 1998
Observing site:   Lat.:        Lon.:
Gronau (Ger.)     52 13'       07 01'

May 03/04        00:30 - 02:00 19h / 70 d1 A ; 1 Sco ; 13 sp.       15. 1.50  6.0  a few small ci-clo
                                                                                   LM = 5.2 at 02:00 UT


Observer: Johannink, Carl (IMO-code JOHCA)
Year: 1998
Observing site:   Lat.:        Lon.:
Lattrop (Neth)    52 26'       06 58'

July 21/22       21:30 - 22:45 20h / 70 d1 P ; 1 o Cyg ; 7 sp.        9.1.10  6.1  plotting!
                 22:45 - 23:50           1 P ; 1 o Cyg ; 2 iA ; 1C   11.1.00  6.2  plotting!
                                         5 sp


The results of the Perseids 21/22 july 1998, 
from the Public Observatory Lattrop Netherlands.


Date		: 21/22 july
Observer	: Arnold Tukkers
Code            : ATL
Obs. time	: 21h30m - 00h00m.
T.eff    	: 2h30m
Total observed meteors: 24 
Place: Lattrop, 52.24 - 06.52


      UT	 T-eff	 Persei.   Capricor.   Aquar.   Spor.
21h30m - 22h30m    1     1          0          1         7 
22h30m - 23h00m    1                           1         2 
23h00m - 23h30m    1     1                     1         5
23h30m - 00h00m    1     1          2                    2      

-------------------------------------------------------------------
Total:                   3          2          3         16   


Observer: Johannink, Carl (IMO-code JOHCA)
Year: 1998
Observing site:   Lat.:        Lon.:
Lattrop (Neth)    52 26'       06 58'

July 22/23       21:45 - 22:45 20h / 70 d2C ; 5 sp                    7.0.92  5.7  plotting!
                                                                                   3/8 cirrus
                 22:45 - 23:45           2P ; 3C ; 6sp               11.0.92  6.1  plotting!
                 23:45 - 00:53           3P ; 1 o Cyg ; 1dA ; 6sp    11.1.03  6.2  plotting!


The results of the Perseids 22/23 july 1998, 
from the Public Observatory Lattrop Netherlands.


Date		: 221/23 july
Observer	: Arnold Tukkers
Code            : ATL
Obs. time	: 22h15m - 00h15m.
T.eff    	: 2h15m
Total observed meteors: 35 
Place: Lattrop, 52.24 - 06.52


      UT	 T-eff	 Persei.   Capricor.   Spor.
22h15m - 22h45m   0.5    2         2           2    
22h45m - 23h15m   0.5    2         2           5          
23h15m - 23h45m   0.5    1         1           6                    
23h45m - 00h15m   0.5    1                     11

------------------------------------------------------
Total:                   6         5           24                       



Observer: Johannink, Carl (IMO-code JOHCA)
Year: 1998
Observing site:   Lat.:        Lon.:
Denekamp (Neth)   52 22'       07 01'
							
July 24/25	22:10 - 22:40	16h / 50 deg	1P ; 1C ; 1 sp	   3.	0.50	5.5	plotting; totally
                                                                                        clouded at 22:45 UT
                23:38 - 01:20	7P ; 2 o Cyg ; 3 dA ; 1C ; 7 sp	  20.	1.63	6.0	plotting; first 15 min. 2/8 cu;
                                                                                        LM = 5.5 at 01:15 UT


The results of the Perseids 24/25 july 1998, 
from the Public Observatory Lattrop Netherlands.

Date		: 24/25 july
Observer	: Arnold Tukkers
Code            : ATL
Obs. time	: 22h15m - 01h15m (pause 22h45m/23h45m clouds)
T.eff    	: 2 h.
Total observed meteors: 32
Place: Denekamp 52.22 - 7.00.
Lm: 5.7

      UT	 T-eff	 Persei.   Capricor.   Aquar.   1997BR  Spor.
22h15m - 22h45m    0.5   1         1                            2
22h45m - 23h45m    0       
23h45m - 00h15m    0.5   5                              1       5      
00h15m - 00h45m    0.5   1                     1                4
00h45m - 01h15m    0.5   2         1           2                6 
---------------------------------------------------------------------
Total:                   9         2           3        1       17 


I saw the 1997BR meteor (magnitude 3) left from Deneb and the meteor 
flew very slow from Cygnus trough m15 in Pegasus and it stopped in 
Capricornes.                                                                 


Observer: Johannink, Carl (IMO-code JOHCA)
Year: 1998
Observing site:   Lat.:        Lon.:
Lattrop (Neth)    52 26'       06 58'

July 25/26	21:55 - 23:25	20h / 70 deg	4P ; 3dA ; 1 o Cyg ; 9 sp	  17.	1.42	5.9

LM fluctuating between 5.8 and 6.2 after 23:00;
after 23:25 rapid <5.5 at least until 00:30 UT 


The results of the Perseids 25/26 july 1998, 
from the Public Observatory Lattrop Netherlands.


Date      : 25/26 july
Observer  : Arnold Tukkers
Code      : ATL
Obs. time : 22h00m  - 00h30m UT 
T.eff     : 2h30m.
Total observed meteors: 27
Place: Lattrop 52.22/7.00
Lm: 5.1

 UT                T-eff Per.   Aqua.   Capr.   aCyg.  Spor.
22h00m - 22h30m    0.5                                 5 
22h30m - 23h00m    0.5             1                   3    
23h00m - 23h30m    0.5   2              1       1      6 
23h30m - 00h00m    0.5   1         1                   1
00h00m - 00h30m    0.5   3                             2 
-----------------------------------------------------------
Total:                   6         2    1       1      17


Date    : July 30/31
Observer: Johannink, Carl (IMO-code JOHCA)
Year    : 1998
Observing site:   Lat.:        Lon.:
Gronau (Ger.)     52 13'       07 01'

Time(UT)        LM:     Stream:                 Remarks:
22:35-23:00     6.0     3 C ; 1 dA ; 2 sp       clouds after 23:00 UT
23:45-00:00     6.0     1 dA ; 1 P              clouded after 00:00 UT


Observer      :  Johannink, Carl (IMO-code JOHCA)
Date          :  August 02/03, 1998
Observing site:  Public Observatory, Lattrop, Netherlands
Coordinates   :  Latitude: 52 26'    Longitude: 06 58'
Center        :  20h / 70 deg

Time (UT)        Streams:                                 Tot.  Teff    LM      Method

22:45 - 23:45	 8P ; 4C ; 2 dA ; 1 o Cyg ; 2 sp	  17.	0.98	5.5     plotting
                 LM increasing to 6.0 ;
                 2/8 clouds between 23:30 - 23:40
23:45 - 00:45	 6P ; 1C ; 2 dA ; 1 kC ; 11 sp	          21.	0.92	6.2	plotting
00:45 - 02:03   10P ; 1C ; 2 dA ; 3 iA ; 1 o Cyg ; 8 sp   25.	1.23	6.1     plotting
                 LM decreasing to 5.0  at 02:03



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back.gif This page was last modified on August 4, 1998 by
Casper ter Kuile and Carl Johannink and Arnold Tukkers