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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761466308587964 4.0929e-08  
a 2.34687015519774 1.0575e-08 au
q 1.933476884296598 9.7604e-08 au
i 12.3087470996025 4.5985e-06 deg
node 95.25552099421952 2.1223e-05 deg
peri 169.3885669423694 2.5421e-05 deg
M 300.0102122373709 1.6725e-05 deg
tp 2458819.329992146500
(2019-Dec-01.82999215)
6.1826e-05 TDB
period 1313.203465304069
3.60
8.8756e-06
2.43e-08
d
yr
n .2741387831448061 1.8528e-09 deg/d
Q 2.760263426098883 1.2437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1199  
   data-arc span      7627 days (20.88 yr)  
   first obs. used      1998-06-24  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47038  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:34:21  

Additional Information
 Earth MOID = .918306 au 
 Jupiter MOID = 2.33708 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456652.5 (2013-Dec-26.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1769281344713156 4.1053e-08  
q 1.931300780829711 9.7953e-08 au
tp 2456191.158186999191
(2012-Sep-20.65818700)
5.3334e-05 TDB
node 95.30420126340277 2.1199e-05 deg
peri 169.0656129298538 2.5338e-05 deg
i 12.31735449985444 4.6018e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1199  
   data-arc span      7627 days (20.88 yr)  
   first obs. used      1998-06-24  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47038  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:34:21  

Additional Information
 Jupiter MOID = 2.33708 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.685376698808188E-15 -4.005577276717675E-15 -2.911435095656643E-13 6.45574527425602E-15 -5.771321746860699E-14 1.654002357667674E-15
q -4.005577276717675E-15 9.594724969078175E-15 8.311454050936076E-13 -1.664128660888515E-14 1.784451919537153E-13 -2.992125318600695E-15
tp -2.911435095656643E-13 8.311454050936076E-13 2.84450055441775E-9 -1.566721840183949E-11 7.595317350622813E-10 4.188243850376747E-12
node 6.45574527425602E-15 -1.664128660888515E-14 -1.566721840183949E-11 4.493882260232325E-10 -4.425753722990187E-10 -1.332602629546822E-12
peri -5.771321746860699E-14 1.784451919537153E-13 7.595317350622813E-10 -4.425753722990187E-10 6.419922791262909E-10 2.363087854910638E-12
i 1.654002357667674E-15 -2.992125318600695E-15 4.188243850376747E-12 -1.332602629546822E-12 2.363087854910638E-12 2.117640067348428E-11

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 ]
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