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
JPL Small-Body Database Browser
Search: [ help ]  
46245 (2001 HU20)
Classification: Main-belt Asteroid          SPK-ID: 2046245
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .111501000686949 3.8137e-08  
a 3.090966096845092 1.6871e-08 au
q 2.746320283957432 1.1666e-07 au
i 9.374252163511372 4.2736e-06 deg
node 240.0976977669556 2.5053e-05 deg
peri 109.1467166105252 3.1167e-05 deg
M 85.7657040713564 1.8384e-05 deg
tp 2458527.620000790612
(2019-Feb-13.12000079)
0.0001011 TDB
period 1984.905290041621
5.43
1.6251e-05
4.449e-08
d
yr
n .1813688551318492 1.4849e-09 deg/d
Q 3.435611909732753 1.8752e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1366  
   data-arc span      9927 days (27.18 yr)  
   first obs. used      1992-11-24  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51232  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:24:00  

Additional Information
 Earth MOID = 1.75924 au 
 Jupiter MOID = 2.04126 au 
 T_jup = 3.195 
[ 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 13.7   n/a MPO452802  
diameter diameter 5.925 km 0.854 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.241   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46245 (2001 HU20)          Discovered 2001-Apr-21 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2170-Jul-16 07:49 00:05 Juno 0.0128189619983946 0.0127893437838137 0.0128485810933247 5.27814467935446 5.27814449954529 2513832.825413684 5.37739388803192 1485.64232880103 49.1357524105102 6.48275740902487 4584.48205691639 T 31 CATAB v2.0f-lin.ifort 2020-Feb-23 08:24:12 2020-Feb-23 08:24
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-26 05:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin