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JPL Small-Body Database Browser
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3259 Brownlee (1984 SZ4)
Classification: Main-belt Asteroid          SPK-ID: 2003259
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229534725408109 4.7278e-08  
a 3.166687340645038 2.0601e-08 au
q 2.777332135661704 1.5501e-07 au
i 15.47898003773826 4.8628e-06 deg
node 242.4938398128866 1.7423e-05 deg
peri 314.5691125422807 2.5631e-05 deg
M 316.074608779361 2.0781e-05 deg
tp 2459251.641996931496
(2021-Feb-06.14199693)
0.00011979 TDB
period 2058.28830166133
5.64
2.0086e-05
5.499e-08
d
yr
n .1749026118981626 1.7068e-09 deg/d
Q 3.55604254562837 2.3134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2521  
   data-arc span      24080 days (65.93 yr)  
   first obs. used      1954-05-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42876  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:51:39  

Additional Information
 Earth MOID = 1.79606 au 
 Jupiter MOID = 1.54806 au 
 T_jup = 3.135 
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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 10.1   n/a MPO337277  
diameter diameter 25.579 km 0.639 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.25 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[De Sanctis, M.C.; Barucci, M.A.; Angeli, C.A.; Fulchignoni, M.; et al. (1994) Planet. Space Sci. 42, 859-864.]
[Carbo, L.; Green, D.; Kragh, K.; Krotz, J.; et al. (2009) Minor Planet Bull. 36, 152-157.]
geometric albedo albedo 0.303   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3259 Brownlee (1984 SZ4)          Discovered 1984-Sep-25 by Platt, J. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1984 SZ4 = 1934 XE = 1937 JJ = 1937 KD = 1943 MC = 1948 JA = 1951 XX = 1954 KF = 1956 TO = 1965 JG = 1973 SQ5 = 1976 KA = 1978 RE1 = 1979 VH3 = 1979 XX1 = 1979 YC2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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