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JPL Small-Body Database Browser
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521 Brixia (A904 AE)
Classification: Main-belt Asteroid          SPK-ID: 2000521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 84 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2796272131418919 2.8995e-08  
a 2.744848630764245 6.8474e-09 au
q 1.977314257647302 7.8235e-08 au
i 10.5938270182361 3.9738e-06 deg
node 89.64884043633458 1.46e-05 deg
peri 315.9180192674256 1.6144e-05 deg
M 253.1310941810248 8.6881e-06 deg
tp 2459493.588516400233
(2021-Oct-06.08851640)
4.1528e-05 TDB
period 1661.024453686936
4.55
6.2155e-06
1.702e-08
d
yr
n .2167337146668231 8.1101e-10 deg/d
Q 3.512383003881189 8.7621e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2566  
   data-arc span      42478 days (116.30 yr)  
   first obs. used      1904-01-10  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4351  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:07:23  

Additional Information
 Earth MOID = 1.00281 au 
 Jupiter MOID = 1.92977 au 
 T_jup = 3.267 
[ 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 8.5   n/a MPO492755 IRAS observations used: 36
magnitude slope G -0.06   n/a PDS3 (MPC 17259) Fit
diameter diameter 107.227 km 0.494 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 28.479 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Wang, X.-b.; Gu, S.-h.; Li, X.-j. (2010) Earth, Moon, and Planets 106, 97-104.]
[Pilcher, F. (2015) Minor Planet Bull. 42, 280-281.]
geometric albedo albedo 0.073   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.712   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=8.37, mean=16.47, max.=24.99) deg.
U-B UB 0.341   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=8.37, mean=14.34, max.=17.58) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

521 Brixia (A904 AE)          Discovered 1904-Jan-10 by Dugan, R. S. at Heidelberg
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
1983-Aug-30 06:19 < 00:01 Jupiter 1.96553070079185 1.96553030449675 1.9655310970884 2.52762269229298 2.35095721283534 2445576.763275819 0.310397031787531 128.372997996121 7.18914398571534 82.5149705394774 2469728.10544769 T 84 CATAB v2.0f-lin.ifort 2020-May-20 01:07:39 2020-May-20 01:07
2042-Jun-19 03:16 < 00:01 Jupiter 1.92578410119513 1.92578377907212 1.92578442331868 2.20334744415348 1.99375898153458 2467054.635978089 0.397233467136426 142.821575497367 16.6044481974326 82.4577972572628 2597680.44824233 T 84 CATAB v2.0f-lin.ifort 2020-May-20 01:07:39 2020-May-20 01:07
2101-Apr-07 23:38 00:01 Jupiter 1.97078956744648 1.97078907109993 1.97079006379413 1.92319813647579 1.68496713646138 2488531.484477079 1.05903783896726 210.107329387276 33.6542968073914 79.6469113474952 2774005.53880396 T 84 CATAB v2.0f-lin.ifort 2020-May-20 01:07:39 2020-May-20 01:07
2138-Mar-08 17:12 00:01 Jupiter 1.99313531581856 1.9931347833647 1.99313584827786 2.72253758091643 2.56169301040215 2502015.216380235 1.4498483946143 200.166733250418 9.00168875681633 84.660201863373 2507013.1624538 T 84 CATAB v2.0f-lin.ifort 2020-May-20 01:07:39 2020-May-20 01:07
2196-Dec-27 08:29 00:02 Jupiter 1.91991089242679 1.91991057653925 1.91991120831727 2.42199029229752 2.23241593459467 2523493.853147485 2.08029451537385 258.022657232962 21.2920846406797 -89.9035916625445 2245604.36257167 T 84 CATAB v2.0f-lin.ifort 2020-May-20 01:07:39 2020-May-20 01:07

Alternate Designations
 A904 AE = 1948 QU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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