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JPL Small-Body Database Browser
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907 Rhoda (A918 VA)
Classification: Main-belt Asteroid          SPK-ID: 2000907
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .162180529095854 3.9243e-08  
a 2.801021448919916 1.1245e-08 au
q 2.346750308325249 1.0877e-07 au
i 19.52501679169828 4.7999e-06 deg
node 42.98013232007657 1.2882e-05 deg
peri 88.32559502931855 2.0025e-05 deg
M 183.5488003910611 1.4278e-05 deg
tp 2459839.757426698076
(2022-Sep-17.25742670)
6.8773e-05 TDB
period 1712.273276015753
4.69
1.0311e-05
2.823e-08
d
yr
n .2102468134278631 1.2661e-09 deg/d
Q 3.255292589514584 1.3069e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3197  
   data-arc span      43343 days (118.67 yr)  
   first obs. used      1901-01-18  
   last obs. used      2019-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .33336  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:40:15  

Additional Information
 Earth MOID = 1.45579 au 
 Jupiter MOID = 2.06556 au 
 T_jup = 3.222 
[ 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 9.7   n/a MPO492760 IRAS observations used: 12
diameter diameter 82.660 km 0.340 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 22.44 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2004) Minor Planet Bull. 31, 85-88.]
[Marciniak, A.; Pilcher, F.; Santana-Ros, T.; Oszkiewicz; Kankiewicz, P. (2014) ACM 2014, Poster 57.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.032   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.709   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=8.98 deg.
U-B UB 0.269   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=8.98 deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B Xk   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)

907 Rhoda (A918 VA)          Discovered 1918-Nov-12 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A918 VA = A901 BA = A913 SC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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