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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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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 86 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2796272133261383 2.858e-08  
a 2.744848630791094 6.7235e-09 au
q 1.977314257160914 7.7233e-08 au
i 10.59382698030115 3.9728e-06 deg
node 89.64884184727788 1.4363e-05 deg
peri 315.9180178836156 1.5934e-05 deg
M 253.1310941461622 8.6373e-06 deg
tp 2459493.588516568323
(2021-Oct-06.08851657)
4.1264e-05 TDB
period 1661.024453711307
4.55
6.103e-06
1.671e-08
d
yr
n .216733714663643 7.9633e-10 deg/d
Q 3.512383004421274 8.6036e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2697  
   data-arc span      42578 days (116.57 yr)  
   first obs. used      1904-01-10  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42559  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:17:29  

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 1.9655307019797 1.96553030717281 1.96553109678804 2.5276226530309 2.35095717073365 2445576.763273261 0.308466187359664 127.945276190097 7.08935649121532 82.4873752789625 2475485.31983934 T 86 CATAB v2.0f-lin.ifort 2020-Aug-24 22:17:38 2020-Aug-24 22:17
2042-Jun-19 03:16 < 00:01 Jupiter 1.92578410319306 1.92578378401759 1.92578442236908 2.20334743016404 1.9937589663034 2467054.635981254 0.384155733727483 142.737994092488 16.4106700638027 82.4912880155089 2600378.45674647 T 86 CATAB v2.0f-lin.ifort 2020-Aug-24 22:17:38 2020-Aug-24 22:17
2101-Apr-07 23:38 00:01 Jupiter 1.97078956772229 1.97078908643187 1.97079004901371 1.92319810808414 1.68496710409124 2488531.484482232 1.03072825051131 207.463385882405 33.439451246506 79.8021678001576 2787939.7486571 T 86 CATAB v2.0f-lin.ifort 2020-Aug-24 22:17:38 2020-Aug-24 22:17
2138-Mar-08 17:12 00:01 Jupiter 1.99313531978287 1.99313479836795 1.993135841203 2.72253757120107 2.56169300040673 2502015.216386170 1.41252138333759 195.75247355976 8.9874876233922 84.6452129488563 2511649.77116659 T 86 CATAB v2.0f-lin.ifort 2020-Aug-24 22:17:38 2020-Aug-24 22:17
2196-Dec-27 08:29 00:02 Jupiter 1.91991089555853 1.91991058024624 1.91991121087366 2.42199028411726 2.23241592604211 2523493.853162182 2.02935878514686 253.476554269154 21.1608757039045 -89.9912327194984 2249402.73867677 T 86 CATAB v2.0f-lin.ifort 2020-Aug-24 22:17:38 2020-Aug-24 22:17

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