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368 Haidea (A893 KC)
Classification: Main-belt Asteroid          SPK-ID: 2000368
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 106 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2012862275195557 1.5251e-08  
a 3.073766653089931 1.0867e-08 au
q 2.455059759214048 5.0926e-08 au
i 7.796373557463121 6.1576e-07 deg
node 226.2993158058106 4.9925e-06 deg
peri 95.3394685015614 7.7139e-06 deg
M 238.1289448871322 8.7555e-06 deg
tp 2460062.850670759346
(2023-Apr-28.35067076)
5.0046e-05 TDB
period 1968.361078446394
5.39
1.0439e-05
2.858e-08
d
yr
n .1828932729578986 9.6992e-10 deg/d
Q 3.692473546965814 1.3055e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3659  
   data-arc span      42252 days (115.68 yr)  
   first obs. used      1905-11-01  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3948  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:32:12  

Additional Information
 Earth MOID = 1.45756 au 
 Jupiter MOID = 1.74597 au 
 T_jup = 3.185 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456979.5 (2014-Nov-18.0) TDB
Reference: JPL 106 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1995314761546363 1.5364e-08  
q 2.466530158298965 5.1167e-08 au
tp 2456110.114879495669
(2012-Jul-01.61487950)
3.9933e-05 TDB
node 227.0569023815854 5.0133e-06 deg
peri 93.09378363267619 7.73e-06 deg
i 7.764632386872948 6.085e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3659  
   data-arc span      42252 days (115.68 yr)  
   first obs. used      1905-11-01  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3948  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:32:12  

Additional Information
 Jupiter MOID = 1.74597 au 
 T_jup = 3.185 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.360632305848455E-16 -7.760564220775334E-16 -2.586706661937705E-13 -2.377588755243146E-14 -6.261725313736214E-15 6.890746007449749E-16
q -7.760564220775334E-16 2.618098446977312E-15 8.988870510080942E-13 7.265137459298362E-14 3.909824192260388E-14 -2.336754744576924E-15
tp -2.586706661937705E-13 8.988870510080942E-13 1.59465610439745E-9 -9.724944922378757E-12 2.278435067699015E-10 2.514516621863541E-13
node -2.377588755243146E-14 7.265137459298362E-14 -9.724944922378757E-12 2.513338162771414E-11 -2.69613297715063E-11 -2.137131989791216E-12
peri -6.261725313736214E-15 3.909824192260388E-14 2.278435067699015E-10 -2.69613297715063E-11 5.975271528816527E-11 2.283381791249721E-12
i 6.890746007449749E-16 -2.336754744576924E-15 2.514516621863541E-13 -2.137131989791216E-12 2.283381791249721E-12 3.702680831152416E-13

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 9.94   n/a MPO636065 IRAS observations used: 11
diameter diameter 69.277 km 0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.823 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Fauerbach, M.; Marks, S.A.; Lucas, M.P. (2008) Minor Planet Bull. 35, 44-46.]
geometric albedo albedo 0.038   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.734   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=3.28, mean=3.34, max.=3.40) deg.
U-B UB 0.292   0.041 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=3.28, mean=3.34, max.=3.40) deg.
Tholen spectral type spec_T D   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

368 Haidea (A893 KC)          Discovered 1893-May-19 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A893 KC = A905 VH = A921 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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