IRAC High Precision Photometry

> RMS vs. Binning Scale
> Measuring Noise Reduction
> Correlated Noise
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This is an investigation of the actual precision reached for published, single epoch, IRAC observations. Plots are normalized at a binning size of 1. The dashed black line is photon noise limited. The dashed grey line is 2 (1.5) times the photon noise limit for ch1 (2). The third plot is a zoom in on ch2.

These plots are incomplete!! If you have data you would like to add to this plot, please email the SSC Helpdesk.

References:

HD189733: Knutson et al. 2011

GJ436: Knutson et al. 2012

GJ1214: Fraine et al. 2014, Ballard et al. private communication

HD209458: Zellem et al 2014

HD149026: Stevenson et al. 2012

HatP2: Lewis et al. 2013

WASP-12: Stevenson et al. 2014

55Cnc: Demory et al. private communication

	Spitzer Documentation & Tools
Overview IRAC IRS MIPS Data Archive Data Analysis & Tools Index of Documentation Helpdesk Spitzer FAQs	IRAC High Precision Photometry > RMS vs. Binning Scale > Measuring Noise Reduction > Correlated Noise Home This is an investigation of the actual precision reached for published, single epoch, IRAC observations. Plots are normalized at a binning size of 1. The dashed black line is photon noise limited. The dashed grey line is 2 (1.5) times the photon noise limit for ch1 (2). The third plot is a zoom in on ch2. These plots are incomplete!! If you have data you would like to add to this plot, please email the SSC Helpdesk. References: HD189733: Knutson et al. 2011 GJ436: Knutson et al. 2012 GJ1214: Fraine et al. 2014, Ballard et al. private communication HD209458: Zellem et al 2014 HD149026: Stevenson et al. 2012 HatP2: Lewis et al. 2013 WASP-12: Stevenson et al. 2014 55Cnc: Demory et al. private communication IRAC HPP Home Correlated Noise ↧ ↥ Spacecraft Motion Repeatable Pointing ↧ ↥ PCRS Peak-Up Results Effective Use of PCRS Peak-Up Catalog Mapping Intrapixel Gain ↧ ↥ Centroiding Noise Pixel Optimal Aperture Size Residual Nonlinearity Staring Mode Darks Superdarks IRAC Photometric Stability Persistent Images Removing Correlated Noise Repeatability and Accuracy Measuring Noise Reduction ↧ ↥ RMS vs. Binning Scale Frametimes longer than 2 seconds Tools ↧ ↥ Contributed Software Planning Observations Data Simulator Archival Observations Data Features ↧ ↥ Updated Distortion Correction Header Keywords Skydark Change in the Middle of an Observation Background Modulation Noise Pixel Spikes Timing 58th Frame in Subarray Datasets Corrupted Header Position Jump Wheel Speed Change Pointing History File Change Effect of CR on centroiding algorithm Pattern Noise Sample Datasets Meetings ↧ ↥ IRAC IAU 2015 ↧ ↥ Poster Data Challenge