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120835 (1998 HM153)
Classification: Main-belt Asteroid          SPK-ID: 2120835
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08633397905950235 4.2757e-08  
a 2.762170554594811 2.0381e-08 au
q 2.523701379775648 1.2159e-07 au
i 10.30515198296867 4.6861e-06 deg
node 102.9255976042651 2.7046e-05 deg
peri 128.2929823210451 4.218e-05 deg
M 328.2953308950978 3.3948e-05 deg
tp 2459348.170888493611
(2021-May-13.67088849)
0.00015875 TDB
period 1676.772581407574
4.59
1.8558e-05
5.081e-08
d
yr
n .2146981671764912 2.3762e-09 deg/d
Q 3.000639729413973 2.214e-08 au
  Orbit Determination Parameters
   # obs. used (total)      771  
   data-arc span      8548 days (23.40 yr)  
   first obs. used      1997-01-13  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54837  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:24  

Additional Information
 Earth MOID = 1.52475 au 
 Jupiter MOID = 2.05561 au 
 T_jup = 3.312 
[ 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 15.09   n/a E2021B55  

120835 (1998 HM153)          Discovered 1998-Apr-24 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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