NEO 2019 VL4, PHA Apollo
The asteroid passed the Earth aroud December, 16 2019
Discovered by F51 PANSTARRS on November, 2 2019
Minor planet center's orbital elements and Ephemeris, JPL Small body database
Analysis of a possible cometary feature, asked by Larry Lebofsky of the Planetary Science Institute and University of Arizona on December 16 2019
message: mpml groups.io
PSF performed by Astrometrica (Herbert Raab), LOG file PHOT file
Based on comparisons with other PSF images of NEOs of similar magnitude, I cannot see any significant differences in the shape of the asteroid.
I cannot confirm a cometary structure.
2019 VL4 � by Bernhard Haeusler, 2019-12-04 SQM: 19.84 mag Seeing: 3.7 24 stacked images JAVA orbit here: JPL Small body database
total basis: 24 32 sec. exposures,
2019-12-04 UT 18:02 - 18:17, 12" SCT
f-5.65 (Meade LX600) + CCD ST10XME
mag 19.6, velocity: 5.7"/min in PA 240.9
NEODyS Observations and Residuals of K87 Dettelbach Vineyard Observatory (site with 2019 VL4)
MPC observation computed with Astrometrica:
top of this page Here you find a Calculator for possible crater sizes and energy sums.