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1076 Viola (1926 TE)
Classification: Main-belt Asteroid          SPK-ID: 2001076
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1461743788891069 3.2361e-08  
a 2.473380880829157 6.6937e-09 au
q 2.111835966817763 8.1025e-08 au
i 3.320605877686516 3.3765e-06 deg
node 143.6058002794189 6.0501e-05 deg
peri 304.6048404642038 6.1532e-05 deg
M 323.3473269974044 1.2081e-05 deg
tp 2459145.156541457513
(2020-Oct-22.65654146)
4.7883e-05 TDB
period 1420.806469449494
3.89
5.7677e-06
1.579e-08
d
yr
n .253377224654309 1.0286e-09 deg/d
Q 2.834925794840551 7.6721e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2839  
   data-arc span      34376 days (94.12 yr)  
   first obs. used      1926-10-05  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44628  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:58:11  

Additional Information
 Earth MOID = 1.13038 au 
 Jupiter MOID = 2.3569 au 
 T_jup = 3.466 
[ 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 12.2   n/a MPO502163 IRAS observations used: 9
diameter diameter 22.298 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.336 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Binzel, R.P.; Mulholland, J.D. (1983) Icarus 56, 519-533.]
geometric albedo albedo 0.041   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.629   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=2.99, mean=10.53, max.=16.77) deg.
U-B UB 0.250   0.055 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=2.99, mean=10.53, max.=16.77) deg.
Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B C   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)

1076 Viola (1926 TE)          Discovered 1926-Oct-05 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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