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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309059587551518 2.535e-08  
a 2.458281244311497 7.8515e-09 au
q 2.136477581135093 6.2094e-08 au
i 5.701986724962754 4.2214e-06 deg
node 152.0182078243758 3.0155e-05 deg
peri 101.9599865862691 3.4965e-05 deg
M 199.7510489877781 1.7788e-05 deg
tp 2459827.169377091297
(2022-Sep-04.66937709)
7.0086e-05 TDB
period 1407.81561643833
3.85
6.7446e-06
1.847e-08
d
yr
n .2557153051837666 1.2251e-09 deg/d
Q 2.780084907487901 8.8793e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2827  
   data-arc span      25226 days (69.07 yr)  
   first obs. used      1951-12-27  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44489  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:17:00  

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 | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.72   n/a E2021B10  
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

[ hide close-approach data ]
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 46 CATAB v2.0f-lin.ifort 2021-Feb-24 01:17:07 2021-Feb-24 01:17
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 46 CATAB v2.0f-lin.ifort 2021-Feb-24 01:17:07 2021-Feb-24 01:17

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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