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JPL Small-Body Database Browser
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215116 (1998 MG44)
Classification: Main-belt Asteroid          SPK-ID: 2215116
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1915139628936924 5.9477e-08  
a 2.42715607012725 1.7098e-08 au
q 1.962321792575699 1.4464e-07 au
i 7.86888290312487 7.5788e-06 deg
node 286.0001979786496 3.822e-05 deg
peri 336.6138373347121 4.2753e-05 deg
M 199.5137677095612 1.9669e-05 deg
tp 2459216.215748654253
(2021-Jan-01.71574865)
7.6151e-05 TDB
period 1381.163146221711
3.78
1.4595e-05
3.996e-08
d
yr
n .2606498739738389 2.7542e-09 deg/d
Q 2.8919903476788 2.0373e-08 au
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      7502 days (20.54 yr)  
   first obs. used      1998-06-24  
   last obs. used      2019-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61781  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:28:11  

Additional Information
 Earth MOID = .948918 au 
 Jupiter MOID = 2.21216 au 
 T_jup = 3.472 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO422838  

215116 (1998 MG44)          Discovered 1998-Jun-26 by Elst, E. W. at La Silla
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1998 MG44 = 2002 PD121 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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