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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229534716905978 4.7164e-08  
a 3.166687340205481 2.0498e-08 au
q 2.777332137968552 1.5477e-07 au
i 15.47898006263867 4.8262e-06 deg
node 242.4938397564048 1.7411e-05 deg
peri 314.569112366812 2.5591e-05 deg
M 316.0746091500077 2.069e-05 deg
tp 2459251.641994760045
(2021-Feb-06.14199476)
0.00011925 TDB
period 2058.288301232774
5.64
1.9985e-05
5.472e-08
d
yr
n .1749026119345791 1.6982e-09 deg/d
Q 3.55604254244241 2.3018e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2559  
   data-arc span      24116 days (66.03 yr)  
   first obs. used      1954-05-24  
   last obs. used      2020-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .428  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:55:21  

Additional Information
 Earth MOID = 1.79606 au 
 Jupiter MOID = 1.54806 au 
 T_jup = 3.135 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456690.5 (2014-Feb-02.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1254643895678119 4.6987e-08  
q 2.770766844207974 1.5516e-07 au
tp 2457190.330127897210
(2015-Jun-16.83012790)
0.00011063 TDB
node 242.647454925098 1.7382e-05 deg
peri 313.9352907919076 2.5303e-05 deg
i 15.4963923909998 4.829e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2559  
   data-arc span      24116 days (66.03 yr)  
   first obs. used      1954-05-24  
   last obs. used      2020-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .428  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:55:21  

Additional Information
 Jupiter MOID = 1.54806 au 
 T_jup = 3.135 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.207766097485901E-15 -7.245075230045464E-15 -5.878609517889974E-13 -2.92645028674214E-15 -3.096380636645202E-14 -1.575633528090527E-15
q -7.245075230045464E-15 2.407480419398864E-14 2.387888564920448E-12 1.502567619877122E-14 1.57869099014757E-13 4.67223152498424E-15
tp -5.878609517889974E-13 2.387888564920448E-12 1.223798839875669E-8 -7.802831810046937E-12 2.056896650184939E-9 3.831827822279893E-12
node -2.92645028674214E-15 1.502567619877122E-14 -7.802831810046937E-12 3.02135876605506E-10 -2.921080471987058E-10 -5.189475428056977E-12
peri -3.096380636645202E-14 1.57869099014757E-13 2.056896650184939E-9 -2.921080471987058E-10 6.402225028711376E-10 5.567832914447971E-12
i -1.575633528090527E-15 4.67223152498424E-15 3.831827822279893E-12 -5.189475428056977E-12 5.567832914447971E-12 2.331935858181564E-11

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

[ show close-approach data ]
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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