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 ]  
120152 (2003 HJ1)
Classification: Main-belt Asteroid          SPK-ID: 2120152
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06696626082764288 3.9321e-08  
a 3.059498792853908 2.4843e-08 au
q 2.854615598689795 1.1977e-07 au
i 9.571674953604763 3.9148e-06 deg
node 213.7234317823162 2.4472e-05 deg
peri 354.5492580039596 3.9142e-05 deg
M 115.3211110545297 3.0211e-05 deg
tp 2458574.347421581373
(2019-Mar-31.84742158)
0.00016435 TDB
period 1954.671839088664
5.35
2.3808e-05
6.518e-08
d
yr
n .1841741374694611 2.2432e-09 deg/d
Q 3.264381987018022 2.6506e-08 au
  Orbit Determination Parameters
   # obs. used (total)      751  
   data-arc span      7257 days (19.87 yr)  
   first obs. used      2000-11-24  
   last obs. used      2020-10-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54153  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:05:09  

Additional Information
 Earth MOID = 1.84852 au 
 Jupiter MOID = 1.70414 au 
 T_jup = 3.210 
[ 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 14.87   n/a E2021B55  

120152 (2003 HJ1)          Discovered 2003-Apr-21 by McNaught, R. H. at Siding Spring
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-15 09:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin