Photometric Light Curve: SN2023ixf (M101)

Object:
SN2023ixf, RA/DEC (2000)
14:03:38.557 +54:18:42.03
Type SN II
Imaging (1): D Singh, India, 0.08m UV/IR+CMOS
Imaging (2): G Visweswaran, USA, 0.33m Lum+CMOS
Imaging (3): Chris Kagy, USA
Measure (1): V K Agnihotri, India
Imaging & Measure (2): Dr. A Raj, 610mm V+CCD, ICSP, Kolkata, India.
Contact mail ID: ashish@csp.res.in , ashishpink@gmail.com
We report V-band photometric observations of SN2023ixf using different size telescopes, namely the 80mm UV/IR+CMOS, India, 330mm Lum + CMOS, USA, 80mm Lum + CMOS,USA and 610mm Vasistha telescope at IERCOO, Sitapur, ICSP, Kolkata. The reported magnitudes also include those obtained from pre-discovery images obtained by D. Singh from Amarkantak, India The supernova was discovered by K. Itagaki on 2023-05-19.727UT. Photometric calibrations are done using Tycho software and ATLAS catalogue.

Comet Afrho and Water Production Rate

“The [Afrho] parameter and the cometary activity. The [Afrho] parameter is a parameter defined by A’Hearn et al. (1984) to measure the activity of comets. This parameter is proportional to the dust “filling factor”, the ratio of the integrated cross section of the dust particles and the projected surface of the diaphragm in the field of view. The use of this parameter will be discussed. Simple ways of calculating it from calibrated CCD images of comets will be explained and illustrated with examples. The total magnitude depends on the diaphragm used and the wavelength and is a mix of dust and gas emissions. Afrho allows the monitoring of the dust emission rate of comets, dust properties through reddening and the gas to dust ratio.

We estimated the comet Afrho and water production rate for comet C/2022 E3.

CometC/2022 E3
Date2023.02.140156
CCD bin2
CCD pixel micron3.76
CCD resolution arcsec/pixel0.67
Tycho Aperture30
Photometric aperture20.1
comet to earth distance AU0.5
comet to sun distance AU1.229
Sun R Mag-27.09
Comet R band mag8.52
Comet phase angle 50.3
rho(Km)7270
Afrho (cms)5917
mH Heliocentric mag9.02
Water Production rate Q(H2O) Kg/sec867.09
Telescope dia mm 330
Focal mm2320
Observer Gowri Visweswaran
Measures V. K. Agnihotri

Photometry: CoRoT-1b

Exo-Planet, Class confirmed:
CoRoT-1b
Imaged/Calibration/Image solve:
PRiSM v11
Photometry and Data Fitting:
HOPS 3.1.0/Platform: Python 3.9
Instrument:
CCD: SX-35 (KAF11002M)
FILTERS: Luminance
TELESCOPE: RC14, 1945.0 mm
Site:
ORIGIN: Cepheid Observatory India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
Cepheid Observatory India, VS Observatory India
Remark:
Sky Clear

Photometry: HAT-P-36b

Exo-Planet, Class confirmed:
HAT-P-36b
Imaged/Calibration/Image solve:
PRiSM v11
Photometry and Data Fitting:
HOPS 3.1.0/Platform: Python 3.9
Instrument:
CCD: SX-35 (KAF11002M)
FILTERS: Luminance
TELESCOPE: RC14, 1945.0 mm
Site:
ORIGIN: Cepheid Observatory India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
Cepheid Observatory India, VS Observatory India
Remark:
Sky Clear

Photometry: XO-2NB

Exo-Planet, Class confirmed:
XO-2NB
Imaged/Calibration/Image solve:
PRiSM v11
Photometry and Data Fitting:
HOPS 3.1.0/Platform: Python 3.9
Instrument:
CCD: SX-35 (KAF11002M)
FILTERS: Luminance
TELESCOPE: RC14, 1945.0 mm
Site:
ORIGIN: Cepheid Observatory India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
Cepheid Observatory India, VS Observatory India
Remark:
Sky Clear

Photometry: M31N 2008-12a

Image Info:
Object: M31N 2008-12a
DATE-OBS: 03/12/2022 – 15:23:19.694
EXPTIME(Seconds): 3600
SUBFRMS: 30
OBJCTRA: 00 45 28.82
OBJCTDEC: +41 54 10.5
Binning: 1 x 1
Plate Scale: 0.97″ /Pixel
Orientation: North UP/ East Left
Catalogs & Filter Magnitude Results:
Astrometry Catalog: GaiaEDR3
Photometry Catalog: ATLAS
Imaging Filter: Clear
Photometry Mag: +18.21 R Band
Instruments:
CCD: SX35 KAF11002M (9.0µm x 9.0µm)
TELESCOPE: 0.36m/f5.4, 1945.0mm
PRiSMv11, Tycho9.3.7
Site:
ORIGIN: Cepheid Observatory, India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
Cepheid Observatory
Remark:
Sky Clear

Photometry: HAT-P-20b

Exo-Planet, Class confirmed:
HAT-P-20b
Imaged/Calibration/Image solve:
PRiSM v11
Photometry and Data Fitting:
HOPS 3.0.6/Platform: Python 3.7.6
Instrument:
CCD: SX-35 (KAF11002M)
FILTERS: Luminance
TELESCOPE: RC14, 1945.0 mm
Site:
ORIGIN: Cepheid Observatory India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
Cepheid Observatory India, VS Observatory India
Remark:
Sky Clear

Photometry: TOI-3714b

Exo-Planet, Class confirmed:
TOI-3714b
Imaged/Calibration/Image solve:
PRiSM v11
Photometry and Data Fitting:
HOPS 3.0.6/Platform: Python 3.7.6
ETD protocol
Instrument:
CCD: SX-35 (KAF11002M)
FILTERS: Luminance
TELESCOPE: RC14, 1945.0 mm
Site:
ORIGIN: Cepheid Observatory India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
Cepheid Observatory India, VS Observatory India
Remark:
Sky Clear

Photometry: HAT-P-51b

Exo-Planet, Class confirmed:
HAT-P-51b
Imaged/Calibration/Image solve:
PRiSM v11
Photometry and Data Fitting:
HOPS 3.0.6/Platform: Python 3.7.6
ETD/protocol
Instrument:
CCD: SX-35 (KAF11002M)
FILTERS: Luminance
TELESCOPE: RC14, 1945.0 mm
Site:
ORIGIN: Cepheid Observatory India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
Cepheid Observatory India, VS Observatory India
Remark:
Sky Clear

Photometry: Qatar-4b

Exo-Planet, Class confirmed:
Qatar-4b
Imaged/Calibration/Image solve:
PRiSM v11
Photometry and Data Fitting:
HOPS 3.0.6/Platform: Python 3.7.6
Instrument:
CCD: SX-35 (KAF11002M)
FILTERS: Luminance
TELESCOPE: RC14, 1945.0 mm
Site:
ORIGIN: Cepheid Observatory India
SITELAT: +24:55:00:00
SITELONG:+75:33:58:99
Observers:
Cepheid Observatory India, VS Observatory India
Remark:
Sky Clear