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37781 (1997 HB13)
Classification: Main-belt Asteroid          SPK-ID: 2037781
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06254875017716938 5.8024e-08  
a 3.110639639199643 2.3255e-08 au
q 2.916073017516144 1.8487e-07 au
i 12.1750554894544 6.4416e-06 deg
node 225.4242090405119 2.0601e-05 deg
peri 346.6815229281588 4.2234e-05 deg
M 82.30830933306125 3.5258e-05 deg
tp 2458542.343175377267
(2019-Feb-27.84317538)
0.0001976 TDB
period 2003.885855518755
5.49
2.2471e-05
6.152e-08
d
yr
n .1796509511799539 2.0146e-09 deg/d
Q 3.305206260883141 2.4709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1017  
   data-arc span      8128 days (22.25 yr)  
   first obs. used      1997-04-30  
   last obs. used      2019-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5553  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:38:18  

Additional Information
 Earth MOID = 1.91034 au 
 Jupiter MOID = 1.68341 au 
 T_jup = 3.181 
[ 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 13.8   n/a MPO474233  
diameter diameter 10.736 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.656 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.056   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37781 (1997 HB13)          Discovered 1997-Apr-30 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 HB13 = 1999 TE298 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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