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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456753.5 (2014-Apr-06.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1307199142049348 2.5412e-08  
q 2.136432731274801 6.2086e-08 au
tp 2457013.036103108318
(2014-Dec-21.53610311)
7.3747e-05 TDB
node 152.0687706609297 3.0653e-05 deg
peri 102.1704022259834 3.6192e-05 deg
i 5.702156900830923 4.5244e-06 deg
  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
 Jupiter MOID = 2.2749 au 
 T_jup = 3.473 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.457923592708426E-16 -1.567636221345744E-15 -2.959420313501369E-14 1.389377255966893E-15 -1.029773247687533E-14 4.475887304601329E-16
q -1.567636221345744E-15 3.854723274095865E-15 2.358330197460452E-14 -2.956114510343675E-15 8.876634532156579E-15 -8.759472971895096E-16
tp -2.959420313501369E-14 2.358330197460452E-14 5.43856947507793E-9 -1.958185394053006E-11 1.42645586691463E-9 -8.762725167662847E-13
node 1.389377255966893E-15 -2.956114510343675E-15 -1.958185394053006E-11 9.396157582260024E-10 -9.394091563113307E-10 2.798557502599846E-11
peri -1.029773247687533E-14 8.876634532156579E-15 1.42645586691463E-9 -9.394091563113307E-10 1.309877227914507E-9 -2.80872147095743E-11
i 4.475887304601329E-16 -8.759472971895096E-16 -8.762725167662847E-13 2.798557502599846E-11 -2.80872147095743E-11 2.047059899198556E-11

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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