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4302 Markeev (1968 HP)
Classification: Main-belt Asteroid          SPK-ID: 2004302
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1311158869355631 2.5445e-08  
a 2.45780081700939 8.0716e-09 au
q 2.135544082976252 6.2189e-08 au
i 5.701954980966059 4.5237e-06 deg
node 152.023361813035 3.0657e-05 deg
peri 101.9265795146716 3.6151e-05 deg
M 148.6344018564365 1.8721e-05 deg
tp 2458419.420850446496
(2018-Oct-27.92085045)
7.309e-05 TDB
period 1407.402937856292
3.85
6.933e-06
1.898e-08
d
yr
n .2557902860060388 1.2601e-09 deg/d
Q 2.780057551042528 9.1299e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2622  
   data-arc span      25056 days (68.60 yr)  
   first obs. used      1951-12-27  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:14:20  

Additional Information
 Earth MOID = 1.12983 au 
 Jupiter MOID = 2.2749 au 
 T_jup = 3.473 
[ 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 12.7   n/a MPO347557  
diameter diameter 7.450 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.134 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2016) Minor Planet Bull. 43, 52-56.]
geometric albedo albedo 0.265   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4302 Markeev (1968 HP)          Discovered 1968-Apr-22 by Smirnova, T. M. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1968 HP = 1960 DA = 1976 KK = 1996 TZ67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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