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 ]  
19471 (1998 HK52)
Classification: Main-belt Asteroid          SPK-ID: 2019471
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1545796798973242 5.3267e-08  
a 3.158829221174039 1.7371e-08 au
q 2.670538411314642 1.6573e-07 au
i 10.67766326228494 4.7032e-06 deg
node 64.42149286795286 2.8147e-05 deg
peri 134.4878080665621 3.0425e-05 deg
M 2.025018218576918 1.2263e-05 deg
tp 2458988.965093429794
(2020-May-19.46509343)
6.9852e-05 TDB
period 2050.631607745472
5.61
1.6915e-05
4.631e-08
d
yr
n .1755556671613948 1.4481e-09 deg/d
Q 3.647120031033436 2.0056e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1394  
   data-arc span      8997 days (24.63 yr)  
   first obs. used      1995-10-17  
   last obs. used      2020-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4896  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:32:41  

Additional Information
 Earth MOID = 1.67999 au 
 Jupiter MOID = 1.37676 au 
 T_jup = 3.160 
[ 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 13.5   n/a MPO344456  
diameter diameter 6.792 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19471 (1998 HK52)          Discovered 1998-Apr-25 by Zoltowski, F. B. at Woomera
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ 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 2020-Jul-14 07:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin