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Small and Nearby NEOs Observed by NEOWISE During the First Three Years of Survey: Physical Properties
Joseph R. Masiero, E. Redwing, A. K. Mainzer +7
Automated asteroid detection routines set requirements on the number of detections, signal-to-noise ratio, and the linearity of the expected motion in order to balance completeness…
Behavioral Characteristics and CO+CO2 Production Rates of Halley-Type Comets Observed by NEOWISE
Joshua D. Rosser, James M. Bauer, Amy K. Mainzer +8
From the entire dataset of comets observed by NEOWISE, we have analyzed 11 different Halley-Type Comets (HTCs) for dust production rates, CO+CO2 production rates, and nucleus sizes…
NEOWISE Reactivation Mission Year Three: Asteroid Diameters and Albedos
Joseph R. Masiero, C. Nugent, A. K. Mainzer +6
The Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) reactivation mission has completed its third year of surveying the sky in the thermal infrared for near-Earth as…
Observed asteroid surface area in the thermal infrared
C. R. Nugent, A. Mainzer, J. Masiero +5
The rapid accumulation of thermal infrared observations and shape models of asteroids has led to increased interest in thermophysical modeling. Most of these infrared observations…
NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos
C. R. Nugent, A. Mainzer, J. Bauer +6
The Near-Earth Object Wide-Field Infrared Survey Explorer (NEOWISE) mission continues to detect, track, and characterize minor planets. We present diameters and albedos calculated…
The NEOWISE-Discovered Comet Population and the CO+CO2 production rates
James M. Bauer, Rachel Stevenson, Emily Kramer +19
The 163 comets observed during the WISE/NEOWISE prime mission represent the largest infrared survey to date of comets, providing constraints on dust, nucleus sizes, and CO+CO2 prod…
NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos
C. R. Nugent, A. Mainzer, J. Masiero +7
We present preliminary diameters and albedos for 7,959 asteroids detected in the first year of the NEOWISE Reactivation mission. 201 are near-Earth asteroids (NEAs). 7,758 are Main…
The Euphrosyne family's contribution to the low albedo near-Earth asteroids
Joseph R. Masiero, V. Carruba, A. Mainzer +2
The Euphrosyne asteroid family is uniquely situated at high inclination in the outer Main Belt, bisected by the nu_6 secular resonance. This large, low albedo family may thus be an…
NEOWISE: Observations of the Irregular Satellites of Jupiter and Saturn
Tommy Grav, James M. Bauer, Amy K. Mainzer +5
We present thermal model fits for 11 Jovian and 3 Saturnian irregular satellites based on measurements from the WISE/NEOWISE dataset. Our fits confirm spacecraft-measured diameters…
Main Belt Asteroids with WISE/NEOWISE: Near-Infrared Albedos
Joseph R. Masiero, T. Grav, A. K. Mainzer +4
We present revised near-infrared albedo fits of 2835 Main Belt asteroids observed by WISE/NEOWISE over the course of its fully cryogenic survey in 2010. These fits are derived from…
Initial Performance of the NEOWISE Reactivation Mission
A. Mainzer, J. Bauer, R. M. Cutri +32
NASA's Wide-field Infrared Survey Explorer (WISE) spacecraft has been brought out of hibernation and has resumed surveying the sky at 3.4 and 4.6 um. The scientific objectives of t…
The Population of Tiny Near-Earth Objects Observed by NEOWISE
A. Mainzer, J. Bauer, T. Grav +8
Only a very small fraction of the asteroid population at size scales comparable to the object that exploded over Chelyabinsk, Russia has been discovered to date, and physical prope…
Centaurs and Scattered Disk Objects in the Thermal Infrared: Analysis of WISE/NEOWISE Observations
James M. Bauer, Tommy Grav, Erin Blauvelt +22
The Wide-field Infrared Survey Explorer (WISE) observed 52 Centaurs and Scattered Disk Objects in the thermal infrared, including the 15 discoveries that were new. We present analy…
Asteroid family identification using the Hierarchical Clustering Method and WISE/NEOWISE physical properties
Joseph R. Masiero, A. K. Mainzer, J. M. Bauer +3
Using albedos from WISE/NEOWISE to separate distinct albedo groups within the Main Belt asteroids, we apply the Hierarchical Clustering Method to these subpopulations and identify…
Physical Parameters of Asteroids Estimated from the WISE 3 Band Data and NEOWISE Post-Cryogenic Survey
A. Mainzer, T. Grav, J. Masiero +7
Enhancements to the science data processing pipeline of NASA's Wide-field Infrared Explorer (WISE) mission, collectively known as NEOWISE, resulted in the detection of 158,000 m…
Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-Cryogenic Observations of Main Belt Asteroids
Joseph R. Masiero, A. K. Mainzer, T. Grav +4
We present preliminary diameters and albedos for 13511 MBAs that were observed during the 3-Band Cryo phase of the WISE survey (after the outer cryogen tank was exhausted) and as p…
WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy
Tommy Grav, Amy K. Mainzer, James M. Bauer +2
We present updated/new thermal model fits for 478 Jovian Trojan asteroids observed with the Wide-field Infrared Survey Explorer (WISE). Using the fact that the two shortest bands u…
The Yarkovsky Drift's Influence on NEAs: Trends and Predictions with NEOWISE Measurements
C. R. Nugent, A. Mainzer, J. Masiero +2
We used WISE-derived geometric albedos (p_V) and diameters, as well as geometric albedos and diameters from the literature, to produce more accurate diurnal Yarkovsky drift predict…
Characterizing Subpopulations within the Near Earth Objects with NEOWISE: Preliminary Results
A. Mainzer, T. Grav, J. Masiero +10
We present the preliminary results of an analysis of the sub-populations within the near-Earth asteroids, including the Atens, Apollos, Amors, and those that are considered potenti…
Detection of Semi-Major Axis Drifts in 54 Near-Earth Asteroids: New Measurements of the Yarkovsky Effect
C. R. Nugent, J. L. Margot, S. R. Chesley +1
We have identified and quantified semi-major axis drifts in Near-Earth Asteroids (NEAs) by performing orbital fits to optical and radar astrometry of all numbered NEAs. We focus on…