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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04537357745879288 4.1849e-08  
a 2.97833250142215 1.2616e-08 au
q 2.843194900970832 1.2418e-07 au
i 6.556866093439121 4.7995e-06 deg
node 180.3202136108427 3.3128e-05 deg
peri 32.73099150089028 5.4787e-05 deg
M 124.8378700380817 4.4083e-05 deg
tp 2457949.468432219831
(2017-Jul-14.96843222)
0.00022916 TDB
period 1877.405985294092
5.14
1.1929e-05
3.266e-08
d
yr
n .191753942844497 1.2184e-09 deg/d
Q 3.113470101873468 1.3188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2899  
   data-arc span      43114 days (118.04 yr)  
   first obs. used      1901-11-12  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47753  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:08:49  

Additional Information
 Earth MOID = 1.84048 au 
 Jupiter MOID = 1.84884 au 
 T_jup = 3.249 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455867.5 (2011-Nov-02.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .045134154198227 4.1228e-08  
q 2.845146019153059 1.2231e-07 au
tp 2456091.676733903881
(2012-Jun-13.17673390)
0.0002341 TDB
node 180.3751805380649 3.3099e-05 deg
peri 36.83670838943446 5.5736e-05 deg
i 6.557153464200749 4.8018e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2899  
   data-arc span      43114 days (118.04 yr)  
   first obs. used      1901-11-12  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47753  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:08:49  

Additional Information
 Jupiter MOID = 1.84884 au 
 T_jup = 3.249 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.699772896314471E-15 -5.018105928612636E-15 -1.905335433193055E-12 -9.866660762977835E-16 -3.757999631652606E-13 -3.850972762491351E-16
q -5.018105928612636E-15 1.495922918184687E-14 5.871422747114517E-12 4.206879740760531E-15 1.150571147732423E-12 1.602970371618988E-15
tp -1.905335433193055E-12 5.871422747114517E-12 5.480343821019937E-8 2.616883087051373E-12 1.051383989048552E-8 5.18000900134875E-13
node -9.866660762977835E-16 4.206879740760531E-15 2.616883087051373E-12 1.095570699016894E-9 -1.087257770387836E-9 1.531945746199518E-11
peri -3.757999631652606E-13 1.150571147732423E-12 1.051383989048552E-8 -1.087257770387836E-9 3.106494924309011E-9 -1.507884094597661E-11
i -3.850972762491351E-16 1.602970371618988E-15 5.18000900134875E-13 1.531945746199518E-11 -1.507884094597661E-11 2.305763188981019E-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 9.6   n/a MPO416708  
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-January); 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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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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