Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
46231 (2001 HM5)
Classification: Outer Main-belt Asteroid          SPK-ID: 2046231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1074339787933943 5.6253e-08  
a 3.21947945968093 2.688e-08 au
q 2.8735979716838 1.9092e-07 au
i 10.71137036769483 6.0166e-06 deg
node 238.9874580004735 2.7527e-05 deg
peri 355.5676832392254 3.7855e-05 deg
M 30.4093851783758 2.9386e-05 deg
tp 2458422.269488425584
(2018-Oct-30.76948843)
0.00017112 TDB
period 2109.973082008124
5.78
2.6425e-05
7.235e-08
d
yr
n .1706182903799783 2.1368e-09 deg/d
Q 3.565360947678059 2.9768e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1514  
   data-arc span      9665 days (26.46 yr)  
   first obs. used      1992-11-23  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51971  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:33:11  

Additional Information
 Earth MOID = 1.86222 au 
 Jupiter MOID = 1.45116 au 
 T_jup = 3.153 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO449293  
diameter diameter 16.494 km 0.318 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46231 (2001 HM5)          Discovered 2001-Apr-18 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HM5 = 1997 UR16 = 2000 AJ236 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin