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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1810376608027481 6.2637e-08  
a 2.277389631901641 8.4059e-09 au
q 1.865096340205736 1.3827e-07 au
i 6.415187148386521 4.3852e-06 deg
node 178.8635680339584 3.8723e-05 deg
peri 195.028983061391 4.0248e-05 deg
M 86.20585425779981 1.1537e-05 deg
tp 2458699.900194899923
(2019-Aug-04.40019490)
3.9495e-05 TDB
period 1255.319963681427
3.44
6.9501e-06
1.903e-08
d
yr
n .2867794748872171 1.5878e-09 deg/d
Q 2.689682923597545 9.9277e-09 au
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      7832 days (21.44 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51459  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:13:50  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2192-Nov-22 17:23 00:05 Amphi 0.0386172383397674 0.0386116311238892 0.0386228602952055 4.05745547127339 4.0574554345842 2521998.224032303 5.2632542209589 1230.61806492598 34.7289037152336 -76.9541555186088 161974.440438593 T 18 CATAB v2.0f-lin.ifort 2020-Feb-24 01:14:04 2020-Feb-24 01:14

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