Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]
Orbit Diagram
[ switch to new HTML5 viewer ]

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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2454707.5 (2008-Aug-29.0) TDB
Reference: JPL 86 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2818388114289277 2.8855e-08  
q 1.968528925758454 7.8228e-08 au
tp 2454524.188852105337
(2008-Feb-27.68885211)
3.0241e-05 TDB
node 89.70046468218341 1.4386e-05 deg
peri 316.1947044966294 1.5902e-05 deg
i 10.59313617594602 3.9712e-06 deg
  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
 Jupiter MOID = 1.92977 au 
 T_jup = 3.267 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.326154177131419E-16 -2.253119877584908E-15 4.603687130609346E-13 -6.894150538856862E-16 9.823649954205427E-14 -1.826872799621899E-15
q -2.253119877584908E-15 6.119684963056944E-15 -1.21106686247586E-12 2.723206063047491E-15 -2.602729280513038E-13 5.219735340507409E-15
tp 4.603687130609346E-13 -1.21106686247586E-12 9.145302378035667E-10 -3.428350581725689E-12 2.11640455273224E-10 -2.380119314248347E-12
node -6.894150538856862E-16 2.723206063047491E-15 -3.428350581725689E-12 2.069664163707327E-10 -2.034659400718134E-10 5.077486558636903E-12
peri 9.823649954205427E-14 -2.602729280513038E-13 2.11640455273224E-10 -2.034659400718134E-10 2.528776790655125E-10 -5.375422976786399E-12
i -1.826872799621899E-15 5.219735340507409E-15 -2.380119314248347E-12 5.077486558636903E-12 -5.375422976786399E-12 1.577082078853685E-11

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

[ hide close-approach data ]
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-25 12:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin