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37949 (1998 HD29)
Classification: Main-belt Asteroid          SPK-ID: 2037949
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1235611982715779 5.2562e-08  
a 2.598507665261268 1.2642e-08 au
q 2.277432944423706 1.361e-07 au
i 11.72771003318039 6.7896e-06 deg
node 212.3187822816445 1.6722e-05 deg
peri 33.29378382223462 2.9165e-05 deg
M 65.61849715029554 2.0952e-05 deg
tp 2458721.625882412504
(2019-Aug-26.12588241)
8.943e-05 TDB
period 1529.975337617836
4.19
1.1165e-05
3.057e-08
d
yr
n .2352979104620852 1.7171e-09 deg/d
Q 2.919582386098831 1.4204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      961  
   data-arc span      7790 days (21.33 yr)  
   first obs. used      1998-03-22  
   last obs. used      2019-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53351  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:41:17  

Additional Information
 Earth MOID = 1.27459 au 
 Jupiter MOID = 2.09747 au 
 T_jup = 3.376 
[ 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 14.7   n/a MPO337567  
diameter diameter 3.751 km 0.728 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.218   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37949 (1998 HD29)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HD29 = 1999 TY108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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