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43985 (1997 HQ8)
Classification: Main-belt Asteroid          SPK-ID: 2043985
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03352567933711153 3.6064e-08  
a 2.61590066277513 1.2891e-08 au
q 2.528200815977194 9.542e-08 au
i 3.565948500419365 4.4476e-06 deg
node 61.1522140143263 6.1341e-05 deg
peri 112.2728269304836 9.2677e-05 deg
M 253.6656386249676 7.0941e-05 deg
tp 2459656.958632758967
(2022-Mar-18.45863276)
0.00030572 TDB
period 1545.362248555453
4.23
1.1423e-05
3.127e-08
d
yr
n .2329550889032746 1.7219e-09 deg/d
Q 2.703600509573067 1.3323e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      11072 days (30.31 yr)  
   first obs. used      1990-09-24  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59425  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:24:51  

Additional Information
 Earth MOID = 1.53372 au 
 Jupiter MOID = 2.256 au 
 T_jup = 3.404 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.78   n/a MPCxxxxx  

43985 (1997 HQ8)          Discovered 1997-Apr-30 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 HQ8 = 1999 VN112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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