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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309059862766102 1.5313e-08  
a 2.458281251329379 7.763e-09 au
q 2.136477519578807 3.6656e-08 au
i 5.701986780421381 2.4285e-07 deg
node 152.018246686358 4.1976e-06 deg
peri 101.9599745759284 8.4169e-06 deg
M 199.7510237985419 8.0731e-06 deg
tp 2459827.169478279814
(2022-Sep-04.66947828)
3.2648e-05 TDB
period 1407.815622466861
3.85
6.6686e-06
1.826e-08
d
yr
n .2557153040887456 1.2113e-09 deg/d
Q 2.78008498307995 8.7792e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2902  
   data-arc span      25290 days (69.24 yr)  
   first obs. used      1951-12-27  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44387  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:32:48  

Additional Information
 Earth MOID = 1.12914 au 
 Jupiter MOID = 2.2738 au 
 T_jup = 3.473 
[ 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 12.73   n/a MPCxxxxx  
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. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2016) Minor Planet Bull. 43, 52-56.]
[Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 224-230.]
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

Alternate Designations
 1968 HP = 1960 DA = 1976 KK = 1996 TZ67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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