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Near-Earth asteroid (3200) Phaethon. Characterization of its orbit, spin state, and thermophysical parameters
Context. The near-Earth asteroid (3200) Phaethon is an intriguing object: its perihelion is at only 0.14 au and is associated with the Geminid meteor stream. Aims. We aim to use all availableExpand
The Zwicky Transient Facility: System Overview, Performance, and First Results
The Zwicky Transient Facility is a new optical time-domain survey that uses the Palomar 48 inch Schmidt telescope, and the ZTF data system at the Infrared Processing and Analysis Center provides near-real-time reduction to identify moving and varying objects. Expand
Super-catastrophic disruption of asteroids at small perihelion distances
It is found that low-albedo asteroids are more likely to be destroyed farther from the Sun, which explains the apparent excess of high- albedo near-Earth objects and suggests thatLow-al Bedrock asteroids break up more easily as a result of thermal effects. Expand
Debiased orbit and absolute-magnitude distributions for near-Earth objects
Abstract The debiased absolute-magnitude and orbit distributions as well as source regions for near-Earth objects (NEOs) provide a fundamental frame of reference for studies of individual NEOs andExpand
Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 – Preliminary results
Abstract We present the results of a Monte Carlo technique to calculate the absolute magnitudes (H) and slope parameters (G) of ∼240,000 asteroids observed by the Pan-STARRS1 telescope during theExpand
The Pan-STARRS Moving Object Processing System
The Pan-STARRS Moving Object Processing System (MOPS) is described, a modern software package that produces automatic asteroid discoveries and identifications from catalogs of transient detections from next-generation astronomical survey telescopes and remains highly efficient at detecting objects but drops to 80% efficiency at producing orbits. Expand
The Zwicky Transient Facility: Science Objectives
The Zwicky Transient Facility (ZTF), a public–private enterprise, is a new time-domain survey employing a dedicated camera on the Palomar 48-inch Schmidt telescope with a 47 deg^2 field of view andExpand
The main-belt comets: The Pan-STARRS1 perspective
Abstract We analyze a set of 760 475 observations of 333 026 unique main-belt objects obtained by the Pan-STARRS1 (PS1) survey telescope between 2012 May 20 and 2013 November 9, a period during whichExpand
Pre-discovery Activity of New Interstellar Comet 2I/Borisov beyond 5 au
Comet 2I/Borisov, the first unambiguous interstellar comet ever found, was discovered in 2019 August at ~3 au from the Sun on its inbound leg. No pre-discovery detection beyond 3 au has yet beenExpand
Characterization of the Nucleus, Morphology, and Activity of Interstellar Comet 2I/Borisov by Optical and Near-infrared GROWTH, Apache Point, IRTF, ZTF, and Keck Observations
We present visible and near-infrared photometric and spectroscopic observations of interstellar object 2I/Borisov taken from 2019 September 10 to 2019 November 29 using the GROWTH, the APO ARC 3.5 mExpand