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[vsnet-chat 858] Re: Magnitude Estimates for Current SNe
- Date: Thu, 30 Apr 1998 11:45:52 +0900 (JST)
- To: isn_chat@mbox.queen.it, vsnet-chat
- From: Taichi Kato <tkato>
- Subject: [vsnet-chat 858] Re: Magnitude Estimates for Current SNe
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
Steve Lucas wrote:
> If one scans the magnitude estimates of the two current visible SNe (SN
> 1998S and SN 1998aq), we can see a fairly wide range of magnitude estimates
> for roughly the same UT time/s. The scatter in some instances approaches~
> 0.5mv. Are all of the observers using the same finder charts (sequences),
> or are there different ones employed for the estimates? Or on the other
> hand, are the pitfalls mentioned by: J. Isles:_ Webb Society Deep Sky
> Observers Handbook_, Vol. 8 "Variable Stars" (pgs. 38-43)(1990) regarding
> visual magnitude pitfalls, at work? I am truly esthatic to see the
> participation of so many individuals rendering their time and effort in
> this matter, so the above are just general inquiries....
I have caluclated indivudal's trends by using kojinsa.exe (what I earlier
introduced in vsnet-chat and aavso-discussion).
*** correction ***
Code Mode Corr SD Obs
San C 0.13 0.04 2
OKU V -0.09 0.08 9
OKU B -0.38 0.13 9
KNN -0.21 0.12 34
Sny 0.11 0.08 11
Ths 0.08 0.14 10
Wnt 0.09 0.13 14
MRV -0.15 0.15 12
Mhh -0.00 0.12 9
Yos 0.38 0.14 1
KID -0.02 0.08 4
PIE -0.07 0.11 16
Gar -0.39 0.06 2
Puj -0.22 0.05 1
Biv 0.12 0.12 5
BRO -0.15 0.08 5
Rip 0.07 0.14 3
POY -0.04 0.13 17
GRL 0.16 0.12 23
Rod -0.19 0.04 1
Scp -0.09 0.11 13
Oud V 0.29 0.08 3
HOR -0.04 0.12 18
KSL -0.01 0.11 10
JEN -0.27 0.07 3
MOK 0.26 0.15 9
Ioh 0.02 0.12 10
Res 0.03 0.07 3
Kyh 0.14 0.04 1
Mkn -0.03 0.13 8
Som -0.04 0.06 1
Fnm 0.05 0.12 4
Car 0.27 0.15 14
Kis 0.04 0.17 3
DGL -0.06 0.06 2
BMM 0.17 0.13 9
VER 0.02 0.18 4
VHD 0.18 0.09 3
DIE -0.09 0.04 1
TUB 0.17 0.05 4
CMG 0.20 0.18 10
Big C -0.32 0.02 1
DPA -0.01 0.23 8
Nts -0.02 0.10 3
Pro R -0.02 0.01 1
Stm 0.08 0.14 6
BMU 0.26 0.07 3
And 0.14 0.07 2
MKJ -0.02 0.13 1
Bea C -0.01 0.11 17
PAE 0.22 0.26 2
Pro C 0.01 0.10 5
Hrm 0.22 0.05 1
Wes -0.08 0.05 1
Kdg -0.10 0.09 3
KIN 0.15 0.06 2
WEN -0.01 0.04 1
McG C -0.02 0.01 1
WEN C 0.01 0.07 7
SQN 0.42 0.01 1
Nightly averaged magnitudes after applying these corrections to inidiviudal
estimates. The scatter (S.D.) is roughly an order of 0.1 mag, no worse than
in other variable stars.
980305.774 13.144 0.216 4 all
980306.681 13.012 0.100 7 all
980307.652 12.805 0.202 14 all
980308.502 12.723 0.116 5 all
980309.826 12.702 0.150 4 all
980310.384 12.547 0.147 8 all
980311.629 12.277 0.193 9 all
980312.604 12.293 0.146 7 all
980313.530 12.393 0.149 9 all
980314.611 12.244 0.142 5 all
980315.606 12.286 0.114 17 all
980316.681 12.243 0.129 8 all
980317.490 12.133 0.118 8 all
980318.628 12.231 0.142 10 all
980319.631 12.108 0.087 18 all
980320.661 12.034 0.094 9 all
980321.757 12.125 0.101 8 all
980322.643 12.212 0.059 8 all
980323.729 12.197 0.104 15 all
980324.588 12.138 0.122 7 all
980325.659 12.356 0.273 6 all
980326.705 12.237 0.172 4 all
980327.859 12.318 0.078 3 all
980328.584 12.370 0.139 12 all
980329.735 12.419 0.132 11 all
980330.736 12.468 0.141 6 all
980331.664 12.524 0.101 8 all
980401.633 12.649 0.095 4 all
980402.407 12.699 0.056 4 all
980403.610 12.700 0.112 9 all
980404.637 12.794 0.110 12 all
980405.565 12.735 0.037 4 all
980406.594 12.939 0.063 3 all
980407.362 13.026 0.181 3 all
980408.720 12.914 0.103 4 all
980409.767 12.997 0.110 5 all
980410.589 12.960 0.152 4 all
980411.749 13.116 0.102 6 all
980412.647 13.129 0.106 6 all
980413.765 13.146 0.110 5 all
980414.664 13.113 0.021 3 all
980415.562 13.232 0.134 5 all
980416.882 13.305 0.080 3 all
980417.787 13.388 0.192 5 all
980418.783 13.415 0.137 6 all
980419.546 13.214 0.155 5 all
980420.571 13.342 0.164 9 all
980421.485 13.409 0.190 7 all
980422.655 13.451 0.194 10 all
980423.511 13.511 0.048 6 all
980424.588 13.520 0.116 4 all
980425.822 13.433 0.119 7 all
980426.517 13.453 0.138 5 all
980427.449 13.520 0.042 2 all
980428.667 13.567 0.186 10 all
980429.096 13.700 0.000 1 all
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