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7402 (1987 YH)
Classification: Main-belt Asteroid          SPK-ID: 2007402
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2009053829769539 4.085e-08  
a 2.781481751613787 2.1447e-08 AU
q 2.22266709506241 1.2003e-07 AU
i 8.236318365696725 7.1026e-06 deg
node 150.9761862626816 3.5974e-05 deg
peri 292.9748857890213 4.2756e-05 deg
M 305.2839444344257 2.4915e-05 deg
tp 2457258.028341254092
(2015-Aug-23.52834125)
0.00011917 JED
period 1694.387541155351
4.64
1.9597e-05
5.365e-08
d
yr
n .2124661514888896 2.4574e-09 deg/d
Q 3.340296408165163 2.5756e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1014  
   data-arc span      21389 days (58.56 yr)  
   first obs. used      1956-03-09  
   last obs. used      2014-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54182  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:09:49  

Additional Information
 Earth MOID = 1.25373 AU 
 T_jup = 3.288 
[ 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 13.0 mag n/a MPO302110  
SMASSII spectral type spec_B Ch   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)

7402 (1987 YH)          Discovered 1987-Dec-25 by Kojima, T. at Chiyoda
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1987 YH = 1956 ET = 1970 EQ2 = 1982 VN9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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