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5863 Tara (1983 RB)
Classification: Amor [NEO]          SPK-ID: 2005863
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 229 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5060072823127686 3.1641e-08  
a 2.22171951226147 5.3871e-09 au
q 1.097513259800794 7.1112e-08 au
i 19.49277987316302 4.9278e-06 deg
node 168.9057703559949 1.2558e-05 deg
peri 115.4723518735779 1.4011e-05 deg
M 51.00552263395002 7.7298e-06 deg
tp 2458829.125195671437
(2019-Dec-11.62519567)
2.5606e-05 TDB
period 1209.573520127359
3.31
4.3994e-06
1.204e-08
d
yr
n .2976255630679603 1.0825e-09 deg/d
Q 3.345925764722146 8.113e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1062  
   data-arc span      13646 days (37.36 yr)  
   first obs. used      1983-09-07  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49723  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-17 06:07:15  

Additional Information
 Earth MOID = .235375 au 
 Jupiter MOID = 2.25503 au 
 T_jup = 3.405 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457457.5 (2016-Mar-10.0) TDB
Reference: JPL 229 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5055055411339545 3.1626e-08  
q 1.099077458710548 7.1153e-08 au
tp 2457619.212741165467
(2016-Aug-18.71274117)
2.3374e-05 TDB
node 168.933781737417 1.2556e-05 deg
peri 115.4365920648743 1.4014e-05 deg
i 19.48884599419512 4.9271e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1062  
   data-arc span      13646 days (37.36 yr)  
   first obs. used      1983-09-07  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49723  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-17 06:07:15  

Additional Information
 Jupiter MOID = 2.25503 au 
 T_jup = 3.405 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.000194199535441E-15 -2.248753761410298E-15 -2.416555149469696E-13 1.202174042328321E-14 -3.532903220094751E-14 3.556766680679105E-15
q -2.248753761410298E-15 5.062707204359287E-15 5.675512258439242E-13 -2.825053339052889E-14 8.504819037712392E-14 -7.64811133746128E-15
tp -2.416555149469696E-13 5.675512258439242E-13 5.463536188827647E-10 -2.704097739733899E-11 1.614067944436016E-10 4.329090564725017E-12
node 1.202174042328321E-14 -2.825053339052889E-14 -2.704097739733899E-11 1.576462143411346E-10 -1.537544419215258E-10 1.207845327739492E-11
peri -3.532903220094751E-14 8.504819037712392E-14 1.614067944436016E-10 -1.537544419215258E-10 1.963959190373393E-10 -1.045902981840876E-11
i 3.556766680679105E-15 -7.64811133746128E-15 4.329090564725017E-12 1.207845327739492E-11 -1.045902981840876E-11 2.42764828439943E-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 15.7   n/a MPO431565  
diameter diameter 1.345 km 0.502 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 5.867 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2016) Minor Planet Bull. 43, 240-250.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 311-319.]
geometric albedo albedo 0.488   0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

5863 Tara (1983 RB)          Discovered 1983-Sep-07 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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