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 ]  
46821 (1998 MV31)
Classification: Main-belt Asteroid          SPK-ID: 2046821
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1762874730719801 4.038e-08  
a 2.347102323974317 1.0497e-08 au
q 1.933337586239513 9.6698e-08 au
i 12.30859729085083 4.5022e-06 deg
node 95.2527849307544 2.1108e-05 deg
peri 169.2376605250362 2.5262e-05 deg
M 49.76649020275897 1.6937e-05 deg
tp 2458818.935484803454
(2019-Dec-01.43548480)
6.1093e-05 TDB
period 1313.398337002533
3.60
8.8112e-06
2.412e-08
d
yr
n .2740981085917925 1.8388e-09 deg/d
Q 2.760867061709122 1.2348e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1262  
   data-arc span      7679 days (21.02 yr)  
   first obs. used      1998-06-24  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47993  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:35:22  

Additional Information
 Earth MOID = .918636 au 
 Jupiter MOID = 2.33687 au 
 T_jup = 3.509 
[ 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 MPO337632  
diameter diameter 3.865 km 0.874 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.132   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

46821 (1998 MV31)          Discovered 1998-Jun-24 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 MV31 = 1999 YG23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-24 18:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin