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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 98 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2010178599497161 3.4232e-08  
a 3.074723203567551 1.227e-08 au
q 2.456648925248667 1.0468e-07 au
i 7.795200837706441 3.7766e-06 deg
node 226.3231098759609 2.9471e-05 deg
peri 95.22504696650418 3.0949e-05 deg
M 165.8417452923733 1.1197e-05 deg
tp 2458093.308810862766
(2017-Dec-05.80881086)
5.9428e-05 TDB
period 1969.27997539847
5.39
1.1788e-05
3.227e-08
d
yr
n .1828079320855108 1.0943e-09 deg/d
Q 3.692797481886436 1.4737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3123  
   data-arc span      42008 days (115.01 yr)  
   first obs. used      1905-11-01  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:53:02  

Additional Information
 Earth MOID = 1.4598 au 
 Jupiter MOID = 1.74581 au 
 T_jup = 3.184 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456301.5 (2013-Jan-09.0) TDB
Reference: JPL 98 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2004955146984719 3.4467e-08  
q 2.455468293896435 1.0566e-07 au
tp 2456106.666015467795
(2012-Jun-28.16601547)
5.591e-05 TDB
node 227.3734350977249 2.9473e-05 deg
peri 91.76170322549579 3.0929e-05 deg
i 7.792380887229173 3.782e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3123  
   data-arc span      42008 days (115.01 yr)  
   first obs. used      1905-11-01  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:53:02  

Additional Information
 Jupiter MOID = 1.74581 au 
 T_jup = 3.184 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.187989895606128E-15 -3.626184082518543E-15 -8.441318694803129E-14 7.265742864012352E-15 -3.433110785904946E-14 5.997719348922152E-16
q -3.626184082518543E-15 1.116341345632404E-14 4.154981149387784E-13 -2.425520440104508E-14 1.327326000255038E-13 -1.053639884641628E-15
tp -8.441318694803129E-14 4.154981149387784E-13 3.12587931353722E-9 2.021868010784413E-13 5.515657400710722E-10 4.295422924989435E-12
node 7.265742864012352E-15 -2.425520440104508E-14 2.021868010784413E-13 8.686774207874083E-10 -8.600209018883489E-10 8.403291360124922E-12
peri -3.433110785904946E-14 1.327326000255038E-13 5.515657400710722E-10 -8.600209018883489E-10 9.565778777632748E-10 -7.797747213496823E-12
i 5.997719348922152E-16 -1.053639884641628E-15 4.295422924989435E-12 8.403291360124922E-12 -7.797747213496823E-12 1.430340943684952E-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 9.9   n/a MPO492753 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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