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533 Sara (A904 HC)
Classification: Main-belt Asteroid          SPK-ID: 2000533
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04498238948917724 4.1781e-08  
a 2.979388287210624 1.2358e-08 au
q 2.845368282835823 1.2399e-07 au
i 6.555667138658078 4.7606e-06 deg
node 180.3159967037457 3.2405e-05 deg
peri 32.76876723743877 5.387e-05 deg
M 201.4952130192166 4.3845e-05 deg
tp 2459827.544671815203
(2022-Sep-05.04467182)
0.00023006 TDB
period 1878.404353109978
5.14
1.1687e-05
3.2e-08
d
yr
n .1916520260421919 1.1924e-09 deg/d
Q 3.113408291585425 1.2914e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3083  
   data-arc span      43361 days (118.72 yr)  
   first obs. used      1901-11-12  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:17:43  

Additional Information
 Earth MOID = 1.84246 au 
 Jupiter MOID = 1.8478 au 
 T_jup = 3.248 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456066.5 (2012-May-19.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04527930224572034 4.1205e-08  
q 2.845348060594654 1.222e-07 au
tp 2456090.550299134199
(2012-Jun-12.05029913)
0.00022883 TDB
node 180.3740129292384 3.2375e-05 deg
peri 36.6022045307341 5.4371e-05 deg
i 6.556581391870496 4.7631e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3083  
   data-arc span      43361 days (118.72 yr)  
   first obs. used      1901-11-12  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:17:43  

Additional Information
 Jupiter MOID = 1.8478 au 
 T_jup = 3.248 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.697879736110368E-15 -5.011760471682317E-15 -1.913038918008533E-12 -2.377589761625312E-15 -3.760667719325574E-13 -2.864426769626497E-16
q -5.011760471682317E-15 1.493285604586329E-14 6.003531954164439E-12 8.18310641412748E-15 1.173883660286752E-12 1.290924830366677E-15
tp -1.913038918008533E-12 6.003531954164439E-12 5.236139747995789E-8 6.485367511749199E-12 1.001098419849984E-8 2.556515512145866E-13
node -2.377589761625312E-15 8.18310641412748E-15 6.485367511749199E-12 1.048153245026924E-9 -1.039399868442677E-9 1.925817156222369E-11
peri -3.760667719325574E-13 1.173883660286752E-12 1.001098419849984E-8 -1.039399868442677E-9 2.956199095231541E-9 -1.904219232490888E-11
i -2.864426769626497E-16 1.290924830366677E-15 2.556515512145866E-13 1.925817156222369E-11 -1.904219232490888E-11 2.268689135195508E-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 9.7   n/a MPO502158  
diameter diameter 30.819 km 0.430 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.654 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Fleenor, M.L. (2007) Minor Planet Bull. 34, 129.]
geometric albedo albedo 0.252   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.871   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=6.07, mean=11.69, max.=14.51) deg.
U-B UB 0.386   0.067 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=6.07, mean=10.28, max.=14.50) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B S   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)

533 Sara (A904 HC)          Discovered 1904-Apr-19 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
1917-Jun-03 22:17 00:02 Jupiter 1.93073582415451 1.9307351480386 1.93073650027141 3.34155233910919 3.2075789955659 2421383.428599150 1.80105046089789 91.2938629097174 14.8168810340267 73.0835328175955 3616193.30418172 T 42 CATAB v2.0f-lin.ifort 2020-Aug-24 22:18:04 2020-Aug-24 22:18
1962-Sep-26 08:37 < 00:01 Jupiter 1.96003201354211 1.96003156004812 1.96003246703632 3.56961269491902 3.4464242656744 2437933.859274009 0.957069869391788 64.7975817362074 15.3470818105526 -79.4515105173206 3607072.72339991 T 42 CATAB v2.0f-lin.ifort 2020-Aug-24 22:18:04 2020-Aug-24 22:18
1999-Feb-24 21:34 < 00:01 Jupiter 1.86686456718055 1.86686417603777 1.86686495832322 3.40972438724133 3.27395670048956 2451234.398606953 0.29584767622177 36.6236787409321 15.438243030354 87.593952718533 3144667.96658224 T 42 CATAB v2.0f-lin.ifort 2020-Aug-24 22:18:04 2020-Aug-24 22:18
2035-Jul-28 08:49 < 00:01 Jupiter 1.87644421391298 1.87644383727961 1.87644459054624 3.30803760589728 3.16864600330453 2464536.867596545 0.470825858799639 42.6953504500482 14.3545763828295 88.5280760475234 3183098.24177151 T 42 CATAB v2.0f-lin.ifort 2020-Aug-24 22:18:04 2020-Aug-24 22:18
2071-Dec-31 20:16 00:01 Jupiter 1.97698064615254 1.97698020205644 1.97698109024887 3.31745991716445 3.18569542122968 2477842.344405107 1.16294757276619 55.3943994178983 13.0426093377844 75.0089905374988 3919027.07405338 T 42 CATAB v2.0f-lin.ifort 2020-Aug-24 22:18:04 2020-Aug-24 22:18
2117-Apr-22 08:34 00:02 Jupiter 1.91988387043498 1.91988320917769 1.91988453169413 3.54788911620482 3.42127880929681 2494389.856993331 1.96205951006829 125.15702327005 16.1456589299023 -78.8733030484669 3412713.01162704 T 42 CATAB v2.0f-lin.ifort 2020-Aug-24 22:18:04 2020-Aug-24 22:18
2153-Sep-22 15:47 00:03 Jupiter 1.860223909811 1.86022350907398 1.86022431054834 3.36121276795026 3.2228999364412 2507692.157714059 2.6504104737014 172.538108105084 15.2316871726278 -89.4431374796726 3101088.10165841 T 42 CATAB v2.0f-lin.ifort 2020-Aug-24 22:18:04 2020-Aug-24 22:18
2190-Feb-24 06:13 00:03 Jupiter 1.90448386899677 1.90448312064953 1.90448461734822 3.23689378058718 3.09644600557951 2520995.758980131 3.39902836945586 170.37459804554 13.7619348678154 78.4421394734348 3361494.8140431 T 42 CATAB v2.0f-lin.ifort 2020-Aug-24 22:18:04 2020-Aug-24 22:18

Alternate Designations
 A904 HC = A901 VB = A911 UB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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