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99 Dike
Classification: Main-belt Asteroid          SPK-ID: 2000099
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 76 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1950621743320907 4.7716e-08  
a 2.665585279311325 1.3154e-08 au
q 2.145630418861245 1.2832e-07 au
i 13.8478283145312 5.327e-06 deg
node 41.53156069495486 1.9707e-05 deg
peri 195.3805306910442 2.2618e-05 deg
M 332.9166950652849 1.4909e-05 deg
tp 2457520.087684682091
(2016-May-11.58768468)
6.6391e-05 JED
period 1589.59796780081
4.35
1.1767e-05
3.222e-08
d
yr
n .226472357974926 1.6764e-09 deg/d
Q 3.185540139761406 1.572e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1354  
   data-arc span      36853 days (100.90 yr)  
   first obs. used      1915-01-20  
   last obs. used      2015-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52337  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:31:03  

Additional Information
 Earth MOID = 1.13692 au 
 Jupiter MOID = 1.82196 au 
 T_jup = 3.315 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.43 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
diameter diameter 69.04 km 2.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 18.127 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2011) Minor Planet Bul. 38, 183-185.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2015) Astron. Astrophys., in press.arXiv:1510.07422]
geometric albedo albedo 0.0627   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
B-V BV .703 mag .032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=3.84, mean=7.96, max.=15.22) deg.
U-B UB .322 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=3.84, mean=7.96, max.=15.22) 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)

99 Dike          Discovered 1868-May-28 by Borrelly, A. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1935 UC = 1935 YL = 1939 UT = 1948 UE = 1948 WC = 1961 XJ = 1974 VB = A915 BA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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