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[vsnet-obs 17948] SN1998eb photometry (Beam)

SN1998eb photometry (Beam)

From wbeam@ptialaska.net Wed Nov 11 18:04 JST 1998
From: "Bill Beam" <wbeam@ptialaska.net>
To: "Stefano Pesci" <peste@micronet.it>,
        "Taichi Kato" <tkato@kusastro.kyoto-u.ac.jp>
Date: Wed, 11 Nov 1998 00:00:36 -0900
Reply-To: "Bill Beam" <wbeam@ptialaska.net>
Subject: SN1998eb magnitude

Hello Stefano,
Hello Taichi,

The last entry below is my latest magnitude measurement of SN1998eb.

Observatory location:  Fairbanks, AK at 147 40 16 W, 64 51 55 N, 198 m elevation.
Telescope:  AstroPhysics 180mm f/9.
Camera:  ST8.
Filter:  none.
Image processing and magnitude estimates by MaxIm_DL.

Measured wrt GSC4348
 star 1892 mag 14.6
 star      67 mag 14.0
 GSC4344
 star 1828 mag 14.7
 star 1777 mag 16.1
 star 1916 mag 16.7
 
YYMMDD (UTC)          Magnitude

980929.307                    18.2 +/- 0.2
981002.305                    18.3 +/- 0.2
981005,285                    18.6 +/- 0.2
981008.351                    18.6 +/- 0.1
981010.242                    18.4 +/- 0.2
981015.317                    18.6 +/- 0.1
981111.290	>20 faded, no longer visable in 30min exposure.

Magnitude uncertainties are standard deviation between
comparisons with the above reference stars.

Regards, Bill

----
Reformatted

SN1998eb 980929.307 182C Bea
SN1998eb 981002.305 183C Bea
SN1998eb 981005.285 186C Bea
SN1998eb 981008.351 186C Bea
SN1998eb 981010.242 184C Bea
SN1998eb 981015.317 186C Bea
----


Bill Beam/NL7F
wbeam@ptialaska.net

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