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JPL Small-Body Database Browser
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34921 (4801 P-L)
Classification: Outer Main-belt Asteroid          SPK-ID: 2034921
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122299942225204 3.8267e-08  
a 3.209867672193149 2.3274e-08 au
q 2.817301041333377 1.2241e-07 au
i 2.144931372428756 4.0619e-06 deg
node 98.58104311348426 0.00015958 deg
peri 190.3943581993375 0.00016133 deg
M 146.5266130170833 2.3244e-05 deg
tp 2457745.545248440366
(2016-Dec-23.04524844)
0.00013696 TDB
period 2100.531120074305
5.75
2.2846e-05
6.255e-08
d
yr
n .1713852256505799 1.864e-09 deg/d
Q 3.602434303052922 2.612e-08 au
  Orbit Determination Parameters
   # obs. used (total)      744  
   data-arc span      21322 days (58.38 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56952  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:44:26  

Additional Information
 Earth MOID = 1.80035 au 
 Jupiter MOID = 1.55603 au 
 T_jup = 3.179 
[ 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 14.5   n/a MPO431893  
diameter diameter 7.051 km 0.235 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34921 (4801 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4801 P-L = 1977 RX12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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