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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
42810 (1999 JP72)
Classification: Main-belt Asteroid          SPK-ID: 2042810
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1407407676629126 3.506e-08  
a 2.355888736297852 8.7214e-09 au
q 2.024319147022883 8.3464e-08 au
i 10.33461001059697 3.9636e-06 deg
node 65.62999890296663 2.2672e-05 deg
peri 182.3397072786244 2.7532e-05 deg
M 278.4636724236861 1.7419e-05 deg
tp 2459299.643269892899
(2021-Mar-26.14326989)
6.4688e-05 TDB
period 1320.780324091118
3.62
7.3342e-06
2.008e-08
d
yr
n .272566143993499 1.5135e-09 deg/d
Q 2.687458325572821 9.9488e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1391  
   data-arc span      24223 days (66.32 yr)  
   first obs. used      1953-10-10  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49448  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 07:10:52  

Additional Information
 Earth MOID = 1.01067 au 
 Jupiter MOID = 2.33699 au 
 T_jup = 3.519 
[ 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 14.6   n/a MPO459155  
diameter diameter 2.860 km 0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.451   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

42810 (1999 JP72)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-29 00:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin