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100958 (1998 QD12)
Classification: Main-belt Asteroid          SPK-ID: 2100958
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1810376605087084 6.2616e-08  
a 2.277389631998603 8.4055e-09 au
q 1.865096340954787 1.3822e-07 au
i 6.415186989322881 4.3729e-06 deg
node 178.8635680600308 3.87e-05 deg
peri 195.0289831298566 4.0226e-05 deg
M 86.20585414860632 1.1537e-05 deg
tp 2458699.900195261483
(2019-Aug-04.40019526)
3.9494e-05 TDB
period 1255.319963761597
3.44
6.9498e-06
1.903e-08
d
yr
n .2867794748689022 1.5877e-09 deg/d
Q 2.689682923042418 9.9272e-09 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      7852 days (21.50 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-02-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51326  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:17  

Additional Information
 Earth MOID = .866231 au 
 Jupiter MOID = 2.77342 au 
 T_jup = 3.578 
[ 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 16.2   n/a MPO449611  
diameter diameter 2.153 km 0.426 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.138   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100958 (1998 QD12)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1998 QD12 = 2000 DA32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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