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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .196244048090095 6.8444e-08  
a 2.664166546778216 1.1378e-08 AU
q 2.14133971885225 1.8288e-07 AU
i 13.85054182068137 7.9649e-06 deg
node 41.62439685136977 2.4493e-05 deg
peri 195.469485735002 2.8857e-05 deg
M 196.9095189889888 1.878e-05 deg
tp 2457520.059308463502
(2016-May-11.55930846)
8.4908e-05 JED
period 1588.329063971375
4.35
1.0175e-05
2.786e-08
d
yr
n .226653284993649 1.452e-09 deg/d
Q 3.186993374704183 1.3611e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1215  
   data-arc span      36203 days (99.12 yr)  
   first obs. used      1915-01-20  
   last obs. used      2014-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54061  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:32:41  

Additional Information
 Earth MOID = 1.13358 AU 
 T_jup = 3.316 
[ 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 Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Pilcher, F. (2011) Minor Planet Bul. 38, 183-185.]
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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