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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 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 
[ 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 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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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
1917-Sep-29 14:54 00:03 Jupiter 1.63169205500501 1.63169065734408 1.63169345269016 4.59183840262682 4.47736152487834 2421501.121136402 2.49570945284465 356.174922660927 28.6752793848866 80.1013055215213 3489354.38958607 T 36 CATAB v2.0f-lin.ifort 2020-Jun-23 15:55:33 2020-Jun-23 15:55
1928-Jul-21 11:24 00:02 Jupiter 1.62308601761447 1.62308473260409 1.62308730263942 3.79709074631605 3.65707253919473 2425448.974875459 2.39181818181733 289.285970179234 31.8295189185592 -77.0880057338415 2218576.55428869 T 36 CATAB v2.0f-lin.ifort 2020-Jun-23 15:55:33 2020-Jun-23 15:55
1938-Dec-01 19:34 00:03 Jupiter 1.99771570355776 1.99771442711899 1.99771698000244 1.83617175397289 1.58856402540553 2429234.315366592 2.9946115854705 273.48606965851 52.3301360064789 67.7773540641149 1970561.89974432 T 36 CATAB v2.0f-lin.ifort 2020-Jun-23 15:55:33 2020-Jun-23 15:55
2024-Nov-18 05:01 < 00:01 Jupiter 1.75182411001921 1.75182361474005 1.75182460529837 4.69731455242324 4.59322830280056 2460632.709189968 0.366021282304955 99.5340941063148 23.9403980301631 -89.3815871762423 3723988.99076405 T 36 CATAB v2.0f-lin.ifort 2020-Jun-23 15:55:33 2020-Jun-23 15:55
2035-Sep-16 19:32 < 00:01 Jupiter 1.54389718374271 1.54389665413317 1.54389771335277 4.22722914109055 4.09538932455714 2464587.313965570 0.676494306407826 129.665475517361 23.5679313327845 -85.2905467450028 2821679.47926399 T 36 CATAB v2.0f-lin.ifort 2020-Jun-23 15:55:33 2020-Jun-23 15:55
2046-Apr-29 13:24 00:02 Jupiter 1.87303251525639 1.87303145350812 1.87303357700519 2.529447316359 2.34385664905159 2468465.058281024 1.59077374339145 118.906913139564 78.6424972184384 60.1646042943851 1266427.76831787 T 36 CATAB v2.0f-lin.ifort 2020-Jun-23 15:55:33 2020-Jun-23 15:55
2132-Jan-13 09:52 00:03 Jupiter 1.91836798181871 1.91836484581721 1.91837111782239 4.6803747331034 4.58506727403225 2499768.910769884 3.39743825564405 200.376339286297 86.540649180812 44.0866572317401 2345221.30568428 T 36 CATAB v2.0f-lin.ifort 2020-Jun-23 15:55:33 2020-Jun-23 15:55
2142-Nov-01 17:28 00:03 Jupiter 1.53557416332484 1.53557322171644 1.53557510499007 4.45164109397141 4.32595754492472 2503714.228110848 3.34513159094425 560.759609198919 24.0983946005177 86.2372500973336 3141856.55781012 T 36 CATAB v2.0f-lin.ifort 2020-Jun-23 15:55:33 2020-Jun-23 15:55
2153-Aug-15 07:55 00:05 Jupiter 1.70506046992905 1.70505750010339 1.70506343978523 3.59894664069415 3.45816097963459 2507653.829780092 4.58930685201349 408.465247964439 43.687937850645 -65.854704639192 1931655.44879783 T 36 CATAB v2.0f-lin.ifort 2020-Jun-23 15:55:33 2020-Jun-23 15:55

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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