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48880 (1998 HU129)
Classification: Main-belt Asteroid          SPK-ID: 2048880
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2105575777657009 4.3499e-08  
a 2.219543350842821 8.9444e-09 au
q 1.752201679143389 9.9392e-08 au
i 3.806620861230197 6.1071e-06 deg
node 1.48893055713996 6.4347e-05 deg
peri 291.5907471081914 6.5889e-05 deg
M 53.3531623318469 1.2934e-05 deg
tp 2458421.500614631278
(2018-Oct-30.00061463)
4.3247e-05 TDB
period 1207.796799971037
3.31
7.3008e-06
1.999e-08
d
yr
n .2980633828543285 1.8017e-09 deg/d
Q 2.686885022542253 1.0828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      9903 days (27.11 yr)  
   first obs. used      1992-09-24  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6249  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:38:52  

Additional Information
 Earth MOID = .740007 au 
 Jupiter MOID = 2.516 au 
 T_jup = 3.618 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456593.5 (2013-Oct-28.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2100149807370266 4.3389e-08  
q 1.754535522437922 9.9113e-08 au
tp 2456005.200308258948
(2012-Mar-18.70030826)
4.4378e-05 TDB
node 1.558394092312575 6.4359e-05 deg
peri 291.5400361919222 6.5917e-05 deg
i 3.805856278179713 6.1045e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      9903 days (27.11 yr)  
   first obs. used      1992-09-24  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6249  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:38:52  

Additional Information
 Jupiter MOID = 2.516 au 
 T_jup = 3.618 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.882575107871135E-15 -4.29078020609347E-15 4.003703398740654E-13 3.907513838427318E-15 7.342118655317108E-14 -4.552723577177041E-16
q -4.29078020609347E-15 9.823466039742524E-15 -9.603993075180927E-13 -9.81311207696007E-15 -1.780578299649315E-13 9.272340653926306E-16
tp 4.003703398740654E-13 -9.603993075180927E-13 1.969378289823933E-9 -6.88792547432606E-13 6.385071705862292E-10 6.516934070693578E-13
node 3.907513838427318E-15 -9.81311207696007E-15 -6.88792547432606E-13 4.142136363328401E-9 -4.132766656255335E-9 7.32397488829961E-12
peri 7.342118655317108E-14 -1.780578299649315E-13 6.385071705862292E-10 -4.132766656255335E-9 4.344986151951034E-9 -7.111264242674226E-12
i -4.552723577177041E-16 9.272340653926306E-16 6.516934070693578E-13 7.32397488829961E-12 -7.111264242674226E-12 3.726441756312315E-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 16.3   n/a MPO293712  

48880 (1998 HU129)          Discovered 1998-Apr-19 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HU129 = 1992 SZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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