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 ]  
72852 (2001 HD42)
Classification: Main-belt Asteroid          SPK-ID: 2072852
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1187381408091426 4.617e-08  
a 3.056315611870129 1.7346e-08 au
q 2.693414378390713 1.3818e-07 au
i 16.47611312037348 3.7882e-06 deg
node 39.38915724250369 1.2382e-05 deg
peri 334.5461776233064 2.0813e-05 deg
M 79.17945081276798 1.5394e-05 deg
tp 2458771.254539426158
(2019-Oct-14.75453943)
8.3263e-05 TDB
period 1951.622096647136
5.34
1.6615e-05
4.549e-08
d
yr
n .1844619409764195 1.5704e-09 deg/d
Q 3.419216845349546 1.9406e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1592  
   data-arc span      8164 days (22.35 yr)  
   first obs. used      1998-11-11  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48975  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:16:17  

Additional Information
 Earth MOID = 1.70377 au 
 Jupiter MOID = 2.05204 au 
 T_jup = 3.162 
[ 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 13.83   n/a E2021B10  
diameter diameter 11.519 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72852 (2001 HD42)          Discovered 2001-Apr-16 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 HD42 = 2000 EP156 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-16 09:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin