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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1313495634529802 2.563e-08  
a 2.457608159516796 8.1992e-09 au
q 2.134802400625783 6.2794e-08 au
i 5.702101856621091 4.5747e-06 deg
node 152.0276516421014 3.0779e-05 deg
peri 101.8854952198993 3.6314e-05 deg
M 46.32643476920778 1.8742e-05 deg
tp 2458419.410293372123
(2018-Oct-27.91029337)
7.3252e-05 TDB
period 1407.237459796233
3.85
7.0423e-06
1.928e-08
d
yr
n .2558203645688394 1.2802e-09 deg/d
Q 2.78041391840781 9.2762e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2523  
   data-arc span      24817 days (67.95 yr)  
   first obs. used      1951-12-27  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46685  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:42:20  

Additional Information
 Earth MOID = 1.12881 au 
 Jupiter MOID = 2.27465 au 
 T_jup = 3.473 
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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-January); 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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1946-Feb-03 03:35 < 00:01 Hebe 0.0491852811705976 0.0491845292994442 0.0491860333662479 6.74255635019461 6.74255633144907 2431854.649044736 0.357098739062536 321.650063294594 29.3136110601429 -85.8163958101475 250288.404895567 T 39 CATAB v2.0f-lin.ifort 2019-Dec-13 21:42:34 2019-Dec-13 21:42
1955-Apr-03 17:49 00:03 Europ 0.0488521528996681 0.0488493416683567 0.048854964157964 2.61969180510697 2.61969172205733 2435201.242303552 3.04229136326128 152.229064503608 39.9522946381655 -23.9975012310604 86224.5281830294 T 39 CATAB v2.0f-lin.ifort 2019-Dec-13 21:42:34 2019-Dec-13 21:42

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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