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24989 (1998 MG13)
Classification: Main-belt Asteroid          SPK-ID: 2024989
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1568468492838921 3.2942e-08  
a 2.305265348916906 8.2221e-09 au
q 1.943691742175957 7.507e-08 au
i 9.253146548040926 3.9941e-06 deg
node 199.7737335060318 2.2957e-05 deg
peri 152.8677817751331 2.643e-05 deg
M 154.899954873409 1.4733e-05 deg
tp 2458846.416522119268
(2019-Dec-28.91652212)
5.1232e-05 TDB
period 1278.438410126733
3.50
6.8396e-06
1.873e-08
d
yr
n .2815935418932797 1.5065e-09 deg/d
Q 2.666838955657855 9.5117e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1781  
   data-arc span      14411 days (39.46 yr)  
   first obs. used      1981-10-25  
   last obs. used      2021-04-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:05:22  

Additional Information
 Earth MOID = .943498 au 
 Jupiter MOID = 2.80129 au 
 T_jup = 3.555 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456904.5 (2014-Sep-04.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1575183215018935 3.2988e-08  
q 1.94165305267531 7.5217e-08 au
tp 2456290.799881792655
(2012-Dec-29.29988179)
4.8049e-05 TDB
node 199.8291192512025 2.294e-05 deg
peri 152.9031088570297 2.6384e-05 deg
i 9.257009737785671 3.9962e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1781  
   data-arc span      14411 days (39.46 yr)  
   first obs. used      1981-10-25  
   last obs. used      2021-04-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:05:22  

Additional Information
 Jupiter MOID = 2.80129 au 
 T_jup = 3.555 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.088194296500165E-15 -2.471088978530688E-15 3.226203300944301E-13 4.834277801857094E-15 7.715930423976202E-14 4.785404717522709E-16
q -2.471088978530688E-15 5.657634446185255E-15 -7.204423411873309E-13 -1.091816467017774E-14 -1.675793681931451E-13 -1.015311672168623E-15
tp 3.226203300944301E-13 -7.204423411873309E-13 2.308727772698505E-9 -1.746221536092439E-12 6.382397779991912E-10 -1.026220557740914E-12
node 4.834277801857094E-15 -1.091816467017774E-14 -1.746221536092439E-12 5.262600638951413E-10 -5.193598024014542E-10 1.428281504748554E-11
peri 7.715930423976202E-14 -1.675793681931451E-13 6.382397779991912E-10 -5.193598024014542E-10 6.961373281325841E-10 -1.431518485307831E-11
i 4.785404717522709E-16 -1.015311672168623E-15 -1.026220557740914E-12 1.428281504748554E-11 -1.431518485307831E-11 1.596978602143834E-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 14.31   n/a MPCxxxxx  
diameter diameter 4.510 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.106   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24989 (1998 MG13)          Discovered 1998-Jun-19 by LINEAR at Socorro
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 MG13 = 1981 UP20 = 1981 US25 = 1990 EZ8 = 2000 AQ166 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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