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571 Dulcinea (A905 RA)
Classification: Main-belt Asteroid          SPK-ID: 2000571
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2433301832675173 1.7945e-08  
a 2.410506843017939 5.2043e-09 au
q 1.823957771138779 4.1942e-08 au
i 5.228238626832962 3.7834e-07 deg
node 3.137313983826283 6.7585e-06 deg
peri 27.38669638771345 7.4958e-06 deg
M 318.7722487588092 5.1489e-06 deg
tp 2459553.048217185160
(2021-Dec-04.54821719)
1.9922e-05 TDB
period 1366.976283934468
3.74
4.427e-06
1.212e-08
d
yr
n .263354971282924 8.5289e-10 deg/d
Q 2.997055914897099 6.4707e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3275  
   data-arc span      42297 days (115.80 yr)  
   first obs. used      1905-09-06  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40243  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:16:21  

Additional Information
 Earth MOID = .83028 au 
 Jupiter MOID = 2.4654 au 
 T_jup = 3.473 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456447.5 (2013-Jun-04.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2422507507658212 1.7864e-08  
q 1.826569807350365 4.1729e-08 au
tp 2456821.181491922352
(2014-Jun-12.68149192)
1.4925e-05 TDB
node 3.225404820387333 6.7667e-06 deg
peri 27.52335043443165 7.5168e-06 deg
i 5.2251680846589 3.7808e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3275  
   data-arc span      42297 days (115.80 yr)  
   first obs. used      1905-09-06  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40243  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:16:21  

Additional Information
 Jupiter MOID = 2.4654 au 
 T_jup = 3.473 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.1912785751375E-16 -7.426310896518428E-16 2.045874353027584E-13 3.742156960771022E-14 -1.161241199631015E-14 -1.698065988926677E-15
q -7.426310896518428E-16 1.741334398234237E-15 -4.698060289210309E-13 -8.736477435699446E-14 2.955992271286951E-14 3.96250946472632E-15
tp 2.045874353027584E-13 -4.698060289210309E-13 2.227417309587643E-10 6.791721154680605E-12 3.320754818782922E-11 -6.545044294428488E-13
node 3.742156960771022E-14 -8.736477435699446E-14 6.791721154680605E-12 4.578842888219399E-11 -4.691349172714295E-11 -1.138149902043822E-12
peri -1.161241199631015E-14 2.955992271286951E-14 3.320754818782922E-11 -4.691349172714295E-11 5.650214607079554E-11 1.118860062371764E-12
i -1.698065988926677E-15 3.96250946472632E-15 -6.545044294428488E-13 -1.138149902043822E-12 1.118860062371764E-12 1.429408091933838E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.75   n/a MPCxxxxx  
diameter diameter 11.696 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 126.3 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2011) Minor Planet Bull. 38, 115.]
geometric albedo albedo 0.298   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.867   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.77 deg.
U-B UB 0.437   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.77 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 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)

571 Dulcinea (A905 RA)          Discovered 1905-Sep-04 by Gotz, P. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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