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506 Marion (A903 DB)
Classification: Main-belt Asteroid          SPK-ID: 2000506
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 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1473000707389877 1.6789e-08  
a 3.038588655414228 1.0311e-08 au
q 2.591004331525027 4.8445e-08 au
i 17.0062843458551 7.813e-07 deg
node 312.9347201890085 4.9423e-06 deg
peri 145.7928505085833 7.3364e-06 deg
M 116.0379762232119 9.3308e-06 deg
tp 2458576.903110842925
(2019-Apr-03.40311084)
4.8152e-05 TDB
period 1934.667316712818
5.30
9.8479e-06
2.696e-08
d
yr
n .1860785039836585 9.4718e-10 deg/d
Q 3.486172979303429 1.183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2799  
   data-arc span      41825 days (114.51 yr)  
   first obs. used      1906-09-17  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3923  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:30:04  

Additional Information
 Earth MOID = 1.62402 au 
 Jupiter MOID = 1.67718 au 
 T_jup = 3.158 
[ 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 8.89   n/a E2021B10 IRAS observations used: 17
diameter diameter 105.94 km 2.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
rotation period rot_per 13.546 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2009) Minor Planet Bull. 36, 109-116.]
[Warner, B.D. (2010) Minor Planet Bull. 37, 127-130.]
[Saylor, D.A.; Leake, M. (2012) J. Southeastern Assoc. for Research in Astron. 5, 25-28.]
[Wang, X.; Muinonen, K.; Wang, Y. (2015) Planet. Space Sci. 118, 242-249.]
geometric albedo albedo 0.0454   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
B-V BV 0.718   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=14.62, mean=15.90, max.=18.33) deg.
U-B UB 0.332   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=14.62, mean=15.90, max.=18.33) deg.
Tholen spectral type spec_T XC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

506 Marion (A903 DB)          Discovered 1903-Feb-17 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
1937-Feb-07 00:54 00:01 Jupiter 1.90270369096428 1.9027028635014 1.90270451844188 4.39480609373407 4.29231696193259 2428571.537763437 1.19458943886496 272.05573012609 4.54778037618874 80.8958949614003 14597482.6005454 T 91 CATAB v2.0g-lin.ifort 2021-May-03 18:30:54 2021-May-03 18:30
1985-Mar-01 01:52 < 00:01 Jupiter 1.71756954657552 1.71756935699078 1.71756973616144 4.75110372127225 4.64614711057118 2446125.578059133 0.406788382603087 89.0499104225493 5.31034680490055 85.1308140956581 12983102.8759536 T 91 CATAB v2.0g-lin.ifort 2021-May-03 18:30:54 2021-May-03 18:30
2033-Mar-06 21:09 < 00:01 Jupiter 1.6977164742238 1.69771631302539 1.69771663542318 4.84306493940502 4.73892821108423 2463663.381206558 0.29491961218712 79.9178484848225 4.57679631887655 85.5325123105114 18631876.6952213 T 91 CATAB v2.0g-lin.ifort 2021-May-03 18:30:54 2021-May-03 18:30
2081-Mar-27 15:08 00:01 Jupiter 1.85703873326047 1.85703807364031 1.85703939288095 4.70242366427435 4.60440648550169 2481216.130858686 1.07668127517754 75.8960840258018 29.2176323267015 75.8099822683565 16090212.8599214 T 91 CATAB v2.0g-lin.ifort 2021-May-03 18:30:54 2021-May-03 18:30
2138-Dec-27 13:50 00:02 Jupiter 1.80711762123832 1.80711633034682 1.8071189121778 4.62790307236985 4.52548975677079 2502309.076432228 1.82259865664261 474.643048460067 3.66554739260863 82.0645984860572 16218950.0319166 T 91 CATAB v2.0g-lin.ifort 2021-May-03 18:30:54 2021-May-03 18:30
2187-Jan-08 14:45 00:02 Jupiter 1.67933079793283 1.67933032927281 1.67933126662941 4.80938793617603 4.70334459332759 2519853.114567143 2.31223304153772 407.935657623785 5.32595006890026 86.7949902783642 15411423.2104249 T 91 CATAB v2.0g-lin.ifort 2021-May-03 18:30:54 2021-May-03 18:30

Alternate Designations
 A903 DB = 1948 PF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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