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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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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 83 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2796272133413941 2.9063e-08  
a 2.744848630825996 6.8691e-09 au
q 1.977314257144182 7.8399e-08 au
i 10.59382719207189 3.9744e-06 deg
node 89.64884006795883 1.4649e-05 deg
peri 315.9180195896837 1.619e-05 deg
M 253.1310941582477 8.6954e-06 deg
tp 2459493.588516521965
(2021-Oct-06.08851652)
4.1567e-05 TDB
period 1661.024453742988
4.55
6.2352e-06
1.707e-08
d
yr
n .2167337146595092 8.1357e-10 deg/d
Q 3.51238300450781 8.7899e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2526  
   data-arc span      42241 days (115.65 yr)  
   first obs. used      1904-01-10  
   last obs. used      2019-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43815  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:29:39  

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 1.96553070072351 1.965530304213 1.96553109723547 2.52762277143684 2.35095729792019 2445576.763281685 0.310712329582385 128.44413362212 7.20374093190873 82.5209504477706 2468920.13636464 T 83 CATAB v2.0f-lin.ifort 2020-Feb-22 15:29:54 2020-Feb-22 15:30
2042-Jun-19 03:16 < 00:01 Jupiter 1.9257841011055 1.92578377845113 1.92578442376031 2.20334752531114 1.99375907121344 2467054.635986061 0.399648137416239 142.825455142312 16.6374961576774 82.4566155346612 2597642.12918115 T 83 CATAB v2.0f-lin.ifort 2020-Feb-22 15:29:54 2020-Feb-22 15:30
2101-Apr-07 23:38 00:01 Jupiter 1.97078956543845 1.97078906635634 1.9707900645218 1.92319812970266 1.68496712847074 2488531.484474306 1.06415506404625 210.522720162014 33.6972454567039 79.6213810822922 2772419.56536557 T 83 CATAB v2.0f-lin.ifort 2020-Feb-22 15:29:54 2020-Feb-22 15:30
2138-Mar-08 17:12 00:01 Jupiter 1.99313532034305 1.99313478567287 1.99313585501877 2.72253760698103 2.56169303847988 2502015.216385690 1.45656296640074 201.010035169575 9.00259673095633 84.6617123946121 2505427.61641616 T 83 CATAB v2.0f-lin.ifort 2020-Feb-22 15:29:54 2020-Feb-22 15:30
2196-Dec-27 08:29 00:02 Jupiter 1.91991089405481 1.91991057797542 1.91991121013705 2.42199035413637 2.23241600185238 2523493.853164243 2.08942870624296 258.888968571302 21.3085404312695 -89.8885707216743 2244823.37560102 T 83 CATAB v2.0f-lin.ifort 2020-Feb-22 15:29:54 2020-Feb-22 15:30

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