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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04537357735408257 4.1843e-08  
a 2.978332501584964 1.2583e-08 au
q 2.843194901438121 1.2414e-07 au
i 6.556866088196098 4.7968e-06 deg
node 180.3202137525103 3.2993e-05 deg
peri 32.73099073161646 5.4585e-05 deg
M 124.8378705819392 4.3974e-05 deg
tp 2457949.468429330222
(2017-Jul-14.96842933)
0.00022857 TDB
period 1877.405985448038
5.14
1.1897e-05
3.257e-08
d
yr
n .1917539428287734 1.2152e-09 deg/d
Q 3.113470101731808 1.3153e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2931  
   data-arc span      43121 days (118.06 yr)  
   first obs. used      1901-11-12  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47509  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:44:49  

Additional Information
 Earth MOID = 1.84049 au 
 Jupiter MOID = 1.84884 au 
 T_jup = 3.249 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455886.5 (2011-Nov-21.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04514220047561155 4.1223e-08  
q 2.845180909332829 1.2227e-07 au
tp 2456091.548895374678
(2012-Jun-13.04889537)
0.00023341 TDB
node 180.3752066562261 3.2965e-05 deg
peri 36.80980337974918 5.5529e-05 deg
i 6.557131779915587 4.799e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2931  
   data-arc span      43121 days (118.06 yr)  
   first obs. used      1901-11-12  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47509  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:44:49  

Additional Information
 Jupiter MOID = 1.84884 au 
 T_jup = 3.249 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.699313608449735E-15 -5.015937213642562E-15 -1.918297095566072E-12 -1.285699851853108E-15 -3.782062198335684E-13 -3.683941831024343E-16
q -5.015937213642562E-15 1.494955784791433E-14 5.92619021873186E-12 5.065544768319546E-15 1.161099130898597E-12 1.553520071042833E-15
tp -1.918297095566072E-12 5.92619021873186E-12 5.448042686771654E-8 3.711768178697097E-12 1.044597985397283E-8 4.689942345641866E-13
node -1.285699851853108E-15 5.065544768319546E-15 3.711768178697097E-12 1.086661609940133E-9 -1.078193472865475E-9 1.580658083411376E-11
peri -3.782062198335684E-13 1.161099130898597E-12 1.044597985397283E-8 -1.078193472865475E-9 3.083478159631788E-9 -1.557218903816705E-11
i -3.683941831024343E-16 1.553520071042833E-15 4.689942345641866E-13 1.580658083411376E-11 -1.557218903816705E-11 2.303071853455896E-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-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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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 1.93073564692123 1.9307349670278 1.93073632681565 3.34155158238825 3.20757819468341 2421383.428480356 1.82305733417363 92.4842507733679 14.86504286536 73.1703681341174 3601558.04278477 T 39 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:06 2019-Dec-13 20:45
1962-Sep-26 08:37 < 00:01 Jupiter 1.9600320960731 1.96003164206915 1.96003255007717 3.56961302051837 3.4464246081917 2437933.859201181 0.966203659634114 65.3200841629848 15.4614495971095 -79.6190674538453 3569289.20240203 T 39 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:06 2019-Dec-13 20:45
1999-Feb-24 21:34 < 00:01 Jupiter 1.86686454896045 1.86686415598458 1.86686494193622 3.40972425425268 3.27395656063348 2451234.398587109 0.295901487092245 37.1188940196039 15.5291986278164 87.8116226418573 3130915.6587303 T 39 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:06 2019-Dec-13 20:45
2035-Jul-28 08:49 < 00:01 Jupiter 1.87644412720905 1.87644374952347 1.87644450489464 3.30803707148525 3.16864543880075 2464536.867639216 0.486379081072683 44.0148876286097 14.3914428204295 88.2480146323278 3179553.27797422 T 39 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:06 2019-Dec-13 20:45
2071-Dec-31 20:16 00:01 Jupiter 1.97698054652915 1.97698008973746 1.97698100332106 3.31745915900078 3.18569462493022 2477842.344506334 1.18946985468515 56.4893463474684 13.2522215452672 74.6261232911513 3883716.05769489 T 39 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:06 2019-Dec-13 20:45
2117-Apr-22 08:34 00:02 Jupiter 1.91988385095885 1.91988317238678 1.91988452953288 3.54788915320519 3.42127884635829 2494389.857128222 2.00103449175509 127.658742435511 16.25785657243 -78.7060440906574 3380757.19401362 T 39 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:06 2019-Dec-13 20:45
2153-Sep-22 15:47 00:03 Jupiter 1.86022386222259 1.86022345988232 1.86022426456317 3.36121238440202 3.22289953281848 2507692.157907517 2.7005326996312 175.966062283055 15.2499701507185 -89.4144853679186 3093255.33058873 T 39 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:06 2019-Dec-13 20:45
2190-Feb-24 06:13 00:03 Jupiter 1.90448383461302 1.9044830715218 1.90448459770869 3.23689311726366 3.09644530957598 2520995.759234586 3.46101036935082 173.582661420658 13.8032829236133 78.3898703716661 3355068.92283044 T 39 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:06 2019-Dec-13 20:45

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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