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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 90 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2788184534763698 1.6866e-08  
a 2.744958554230107 5.4258e-09 au
q 1.979613455282936 4.8018e-08 au
i 10.58532849727966 7.0474e-07 deg
node 89.63165453547231 2.9237e-06 deg
peri 315.911979806723 4.0877e-06 deg
M 296.4066239070052 4.5749e-06 deg
tp 2459493.934717033868
(2021-Oct-06.43471703)
2.1799e-05 TDB
period 1661.124233720768
4.55
4.9252e-06
1.348e-08
d
yr
n .2167206959551921 6.4257e-10 deg/d
Q 3.510303653177277 6.9386e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2860  
   data-arc span      42674 days (116.84 yr)  
   first obs. used      1904-01-10  
   last obs. used      2020-11-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41835  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:00:40  

Additional Information
 Earth MOID = 1.00425 au 
 Jupiter MOID = 1.93262 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. 2020-October); 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 1.96553071068424 1.96553056654757 1.96553085482124 2.5276237035945 2.35095830206746 2445576.763263485 0.23927989484214 47.7134412545052 2.46544330510668 83.3365398659344 14930695.1525206 T 90 CATAB v2.0f-lin.ifort 2021-Apr-12 11:03:12 2021-Apr-12 11:03
2042-Jun-19 03:16 < 00:01 Jupiter 1.92578409593385 1.9257839692532 1.92578422261515 2.20334858100479 1.9937602385102 2467054.636004181 0.255314224255813 67.8542303922572 7.69715541785453 87.0756624470301 10129838.996261 T 90 CATAB v2.0f-lin.ifort 2021-Apr-12 11:03:12 2021-Apr-12 11:03
2101-Apr-07 23:38 < 00:01 Jupiter 1.97078942388717 1.97078920333747 1.9707896444372 1.92319968899825 1.68496889131753 2488531.484800993 0.758114599835365 85.4710128616571 27.0952096839881 83.2303429372237 5787301.53768794 T 90 CATAB v2.0f-lin.ifort 2021-Apr-12 11:03:12 2021-Apr-12 11:03
2138-Mar-08 17:12 00:01 Jupiter 1.99313551627112 1.99313512272046 1.99313590982574 2.72253898901615 2.56169452451478 2502015.216832360 1.0462275270768 146.996494165842 2.92510167320478 85.2593939314683 18539511.7192213 T 90 CATAB v2.0f-lin.ifort 2021-Apr-12 11:03:12 2021-Apr-12 11:03
2196-Dec-27 08:30 00:02 Jupiter 1.91991095475609 1.91991074529784 1.91991116422077 2.42199224772071 2.23241806357764 2523493.853908470 1.52159217562219 202.789817766886 7.30512591331662 -89.1379627216592 12567709.1016479 T 90 CATAB v2.0f-lin.ifort 2021-Apr-12 11:03:12 2021-Apr-12 11:03

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