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JPL Small-Body Database Browser
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233 Asterope
Classification: Main-belt Asteroid          SPK-ID: 2000233
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 81 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09895646795181968 3.0855e-08  
a 2.660010422614245 6.5467e-09 au
q 2.396785186477312 8.2215e-08 au
i 7.690881492063939 3.4414e-06 deg
node 221.9732556703956 2.8392e-05 deg
peri 126.0275731681929 3.4472e-05 deg
M 4.895140952199499 1.9814e-05 deg
tp 2458578.953033566601
(2019-Apr-05.45303357)
8.7197e-05 TDB
period 1584.613802088419
4.34
5.85e-06
1.602e-08
d
yr
n .2271846929046958 8.3871e-10 deg/d
Q 2.923235658751178 7.1946e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2574  
   data-arc span      44627 days (122.18 yr)  
   first obs. used      1897-08-24  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50907  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:51:06  

Additional Information
 Earth MOID = 1.39984 au 
 Jupiter MOID = 2.46504 au 
 T_jup = 3.366 
[ show covariance matrix ]

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 8.21   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 41
diameter diameter 99.672 km 1.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 19.70 h n/a LCDB (Rev. 2019-January); 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] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
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          Discovered 1883-May-11 by Borrelly, A. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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