(367789) 2011 AG5

(367789) 2011 AG5
Animation of 2011 AG5 rotating in radar images by the Goldstone Solar System Radar on 4 February 2023
Discovery[1][2]
Discovered byMount Lemmon Srvy.
Discovery siteMount Lemon Obs.
Discovery date8 January 2011
Designations
(367789) 2011 AG5
2011 AG5
Apollo · NEO · PHA[1][3]
Orbital characteristics[1]
Epoch 2023-Feb-25 (JD 2460000.5)
Uncertainty parameter 0
Observation arc14.2 yr (5,201 days)
Earliest precovery date3 October 2008
Aphelion1.978 AU
Perihelion0.87066 AU
1.424 AU
Eccentricity0.3887
1.7 yr (620.9 days)
348.2°
0° 34m 33.222s / day
Inclination3.6946°
135.6°
2023-Mar-17
54.02°
Earth MOID0.00038 AU (57,000 km; 0.15 LD)
Physical characteristics
Dimensions140 m[4]
Mass4×109 kg (assumed)[4]
21.9[3][1]

(367789) 2011 AG5, provisional designation 2011 AG5, is a sub-kilometer asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group.[1] It has a diameter of about 140 meters (460 ft).[4] It was removed from the Sentry Risk Table on 21 December 2012 and as such it now has a rating of 0 on the Torino Scale.[5] It was recovered in December 2022 extending the observation arc from 4.8 years to 14 years. As of 2023, the distance between the orbits of Earth and 2011 AG5 is 0.0004 AU (60,000 km; 0.16 LD)[1]

Earth Approaches on 3 February 2023 and 4 February 2040[1]
Date JPL Horizons
nominal geocentric
distance (AU)
uncertainty
region
(3-sigma)
2023-Feb-03 08:51 ± 00:01 0.01215 AU (1.818 million km)[1] ±112 km[6]
2040-Feb-04 08:29 ± 00:06 0.00725 AU (1.085 million km)[1] ±5800 km[7]
  1. ^ a b c d e f g h i Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference MPEC2011-A31 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference summary was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference removed was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference CA2023 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference CA2040 was invoked but never defined (see the help page).