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 ]  
48174 (2001 HF21)
Classification: Main-belt Asteroid          SPK-ID: 2048174
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07898203528153983 3.148e-08  
a 2.377966762351961 9.7838e-09 au
q 2.190150107629549 7.5411e-08 au
i 7.305753450289521 4.1922e-06 deg
node 33.60196155618877 3.3259e-05 deg
peri 43.00132975771366 4.9331e-05 deg
M 207.7793426057788 3.6129e-05 deg
tp 2459566.841242612097
(2021-Dec-18.34124261)
0.00013595 TDB
period 1339.390138175129
3.67
8.2661e-06
2.263e-08
d
yr
n .2687790433416862 1.6588e-09 deg/d
Q 2.565783417074373 1.0557e-08 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      9095 days (24.90 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-09-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55677  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:38:37  

Additional Information
 Earth MOID = 1.21073 au 
 Jupiter MOID = 2.61751 au 
 T_jup = 3.525 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO436119  

48174 (2001 HF21)          Discovered 2001-Apr-23 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 HF21 = 1995 US29 = 1999 TP205 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-29 07:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin