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511 Davida (A903 KB)
Classification: Main-belt Asteroid          SPK-ID: 2000511
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 96 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1881552997919906 2.6028e-08  
a 3.164091542958715 6.284e-09 au
q 2.568750950124016 8.3732e-08 au
i 15.93881983181191 3.0855e-06 deg
node 107.5936689412225 9.9139e-06 deg
peri 337.2905367644437 1.2214e-05 deg
M 79.16292502492564 8.0503e-06 deg
tp 2458748.444956682973
(2019-Sep-21.94495668)
4.5302e-05 TDB
period 2055.757989524624
5.63
6.1242e-06
1.677e-08
d
yr
n .1751178892819222 5.2169e-10 deg/d
Q 3.759432135793414 7.4664e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3178  
   data-arc span      42967 days (117.64 yr)  
   first obs. used      1903-06-02  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51118  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:17  

Additional Information
 Earth MOID = 1.59216 au 
 Jupiter MOID = 1.47845 au 
 T_jup = 3.117 
[ 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 6.41   n/a E2021B10 IRAS observations used: 22
magnitude slope G 0.16   n/a PDS3 (MPC 17259) Fit
diameter diameter 270.327 km 1.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.1297 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Groeneveld, I.; Kuiper, G.P. (1954) Astrophys. J. 120, 200-220.]
[Gehrels, T.; Owings, D. (1962) Astrophys. J. 135, 906-924.]
[Chang, Y.C.; Chang, C.-s. (1963) Acta Astron. Sin. 11, 139-149.]
[Di Martino, M.; Zappala, V.; De Campos, J.A.; Debehogne, H.; Lagerkvist, C.-I. (1987) Astron. Astrophys. Suppl. Ser. 67, 95-101.]
[Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1987) Icarus 70, 191-245.]
[Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1988) Icarus 76, 19-77.]
[Magnusson, P. (1990) Icarus 85, 229-240.]
[Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1991) Icarus 89, 44-64.]
[Michalowski, T. (1993) Icarus 106, 563-572.]
[De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.]
[Torppa, J.; Kaasalainen, M.; Michalowski, T.; Kwiatkowski, T.; et al. (2003) Icarus 164, 346-383.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Marchis, F.; Kaasalainen, M.; Hom, E.F.Y.; Berthier, J.; et al. (2006) Icarus 185, 39-63.]
[Alton, K.B. (2009) Minor Planet Bull. 36, 144-145.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Garlitz, J. (2013) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Viikinkoski, M.; Hanus, J.; Kaasalainen, M.; Marchis, F.; Durech, J. (2017) Astron. Astrophys. 607, A117.]
[Cellino, A.; Hestroffer, D.; Lu, X.-P.; Muinonen, K.; Tanga, P. (2019) Astron. Astrophys. 631, A67.]
geometric albedo albedo 0.076   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.717   0.013 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=23; phase (min.=1.78, mean=10.93, max.=20.90) deg.
U-B UB 0.363   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=11; phase (min.=1.53, mean=8.22, max.=17.13) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B C   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)

511 Davida (A903 KB)          Discovered 1903-May-30 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
1938-Aug-28 14:28 < 00:01 Jupiter 1.88005149665208 1.88005079854847 1.88005219475643 3.66294464835937 3.53781011304193 2429139.102876938 0.814074382720313 74.1719688647433 11.4617448229794 63.7019198113409 5332030.6332057 T 96 CATAB v2.0f-lin.ifort 2021-Feb-24 00:47:26 2021-Feb-24 00:47
1949-Jun-30 19:00 < 00:01 Jupiter 1.55385253065257 1.55385217999124 1.55385288131549 3.73374432412864 3.58477672269344 2433098.292010507 0.542068628553633 95.883868897453 8.3348973610954 81.0465310145953 4751663.91236452 T 96 CATAB v2.0f-lin.ifort 2021-Feb-24 00:47:26 2021-Feb-24 00:47
1960-Jun-19 21:47 < 00:01 Jupiter 1.5984003407017 1.5984000147132 1.59840066669019 3.54176040077665 3.3888388836992 2437105.407731598 0.411993051092515 73.2169799792319 16.3022128703284 88.9044551514128 4596204.65578179 T 96 CATAB v2.0f-lin.ifort 2021-Feb-24 00:47:26 2021-Feb-24 00:47
1971-Apr-26 10:52 < 00:01 Jupiter 1.95902157105686 1.95902113334038 1.95902200877334 2.90684171019278 2.75408575782835 2441067.952893161 0.379832584926459 140.43853162482 20.9850372084323 86.1432738848328 4690708.9347693 T 96 CATAB v2.0f-lin.ifort 2021-Feb-24 00:47:26 2021-Feb-24 00:47
2068-Jun-22 17:58 < 00:01 Jupiter 1.61701665123484 1.61701626679076 1.61701703568002 3.64813861236119 3.50161094735868 2476555.248632920 0.528547404895181 84.4927550427707 9.45953353367092 78.5533785204639 4596821.60931535 T 96 CATAB v2.0f-lin.ifort 2021-Feb-24 00:47:26 2021-Feb-24 00:47
2079-Jun-06 15:26 < 00:01 Jupiter 1.52667812469753 1.52667780497323 1.52667844442192 3.66179664695771 3.50701105332251 2480556.143163614 0.599704105866956 89.435267088161 15.7089176097435 -88.9584617681941 4764138.76443586 T 96 CATAB v2.0f-lin.ifort 2021-Feb-24 00:47:26 2021-Feb-24 00:47
2090-May-08 16:35 < 00:01 Jupiter 1.81577184152636 1.81577113088395 1.81577255216877 3.32131561961783 3.17776274277612 2484545.190658414 0.843949035487431 94.8837623499581 36.7473761147788 85.9461640026534 4988241.88753822 T 96 CATAB v2.0f-lin.ifort 2021-Feb-24 00:47:26 2021-Feb-24 00:47
2187-Jun-20 12:43 00:02 Jupiter 1.71609230910398 1.7160911241037 1.71609349411235 3.416751007189 3.26910306014186 2520016.029910437 1.78472164018489 203.366259069213 11.8022255209136 72.265924062221 4176771.22495263 T 96 CATAB v2.0f-lin.ifort 2021-Feb-24 00:47:26 2021-Feb-24 00:47
2198-May-14 20:21 00:02 Jupiter 1.49995817417761 1.49995791027341 1.49995843808198 3.6730638674714 3.51596406810417 2523997.347938181 1.56878030515341 235.259401156365 12.6076310315104 89.4266717332403 4651445.22415504 T 96 CATAB v2.0f-lin.ifort 2021-Feb-24 00:47:26 2021-Feb-24 00:47
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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