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67 Asia (A861 HA)
Classification: Main-belt Asteroid          SPK-ID: 2000067
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 136 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1849635280967282 2.0447e-08  
a 2.4217089477304 4.243e-09 au
q 1.97378111673477 5.0552e-08 au
i 6.028382378094126 3.0532e-07 deg
node 202.4054579561705 2.3924e-06 deg
peri 106.9629530977879 4.4353e-06 deg
M 126.8016754874763 3.3592e-06 deg
tp 2458911.653976764021
(2020-Mar-03.15397676)
1.2617e-05 TDB
period 1376.516262059893
3.77
3.6177e-06
9.905e-09
d
yr
n .261529783499453 6.8733e-10 deg/d
Q 2.869636778726029 5.0278e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3270  
   data-arc span      57385 days (157.11 yr)  
   first obs. used      1864-03-02  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45475  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:29:35  

Additional Information
 Earth MOID = .969225 au 
 Jupiter MOID = 2.41945 au 
 T_jup = 3.482 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457260.5 (2015-Aug-26.0) TDB
Reference: JPL 136 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848223499423701 2.0457e-08  
q 1.973844296334398 5.0618e-08 au
tp 2457536.255362231564
(2016-May-27.75536223)
1.2688e-05 TDB
node 202.4461857010105 2.391e-06 deg
peri 107.1593462374685 4.4181e-06 deg
i 6.030086913830872 3.0542e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3270  
   data-arc span      57385 days (157.11 yr)  
   first obs. used      1864-03-02  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45475  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:29:35  

Additional Information
 Jupiter MOID = 2.41945 au 
 T_jup = 3.482 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.184943510413561E-16 -1.03322196196558E-15 1.383758941170553E-13 2.727940161162128E-15 6.018454098783701E-14 5.328462996503628E-16
q -1.03322196196558E-15 2.562158856789461E-15 -3.423985125016692E-13 -6.909954452822125E-15 -1.495945744719522E-13 -1.327908645370996E-15
tp 1.383758941170553E-13 -3.423985125016692E-13 1.609873075124744E-10 3.59450260069494E-12 4.508532053846222E-11 6.306534663223797E-13
node 2.727940161162128E-15 -6.909954452822125E-15 3.59450260069494E-12 5.716960776333479E-12 -4.221533035329579E-12 -2.037584958801394E-13
peri 6.018454098783701E-14 -1.495945744719522E-13 4.508532053846222E-11 -4.221533035329579E-12 1.951931555464243E-11 4.292618792732297E-13
i 5.328462996503628E-16 -1.327908645370996E-15 6.306534663223797E-13 -2.037584958801394E-13 4.292618792732297E-13 9.328021922962885E-14

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.38   n/a E2021B10 IRAS observations used: 9
diameter diameter 56.309 km 0.396 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.853 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[Armstrong, J.C.; Nellermoe, B.L.; Reitzler, L.E. (1996) I.A.P.P.P. Comm. 63, 59-68.]
[Ditteon, R.; Hawkins, S. (2007) Minor Planet Bull. 34, 59-64.]
[Pilcher, F. (2014) Minor Planet Bull. 41, 81-82.]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.228   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.861   0.014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=7.07, mean=13.95, max.=20.81) deg.
U-B UB 0.434   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=7.07, mean=13.95, max.=20.81) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
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)

67 Asia (A861 HA)          Discovered 1861-Apr-17 by Pogson, N. R. at Madras
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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