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233 Asterope (A883 JA)
Classification: Main-belt Asteroid          SPK-ID: 2000233
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 97 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0994195062941443 1.6555e-08  
a 2.660727724820737 4.699e-09 au
q 2.396199488035918 4.2486e-08 au
i 7.689883296388487 6.9872e-07 deg
node 221.9522908376776 2.8259e-06 deg
peri 126.2641170040315 1.1805e-05 deg
M 185.4144483621198 9.4027e-06 deg
tp 2460165.284959271867
4.1531e-05 TDB
period 1585.254809126041
n .2270928294476961 6.0159e-10 deg/d
Q 2.925255961605557 5.1662e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3413  
   data-arc span      45277 days (123.96 yr)  
   first obs. used      1897-08-05  
   last obs. used      2021-07-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46271  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:22:41  

Additional Information
 Earth MOID = 1.39934 au 
 Jupiter MOID = 2.4644 au 
 T_jup = 3.366 
[ show covariance matrix ]

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 MPO636063 IRAS observations used: 41
diameter diameter 99.672 km 1.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 19.70 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Piironen, J.; Lagerkvist, C.-I.; Erikson, A.; Oja, T.; et al. (1998) Astron. Astrophys. Suppl. Ser. 128, 525-540.]
[Durech, J. (2006) IAU 2006, poster paper.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.]
geometric albedo albedo 0.094   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
B-V BV 0.775   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=13.70, mean=17.10, max.=19.46) deg.
U-B UB 0.321   0.023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=13.70, mean=17.10, max.=19.46) deg.
Tholen spectral type spec_T T   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B K   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)

233 Asterope (A883 JA)          Discovered 1883-May-11 by Borrelly, A. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2021-Sep-21 16:17 UT
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