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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 ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2014501516922455 3.2442e-08  
a 2.783082555499448 1.3096e-08 au
q 2.222430152522042 8.939e-08 au
i 8.235027908945868 6.0775e-06 deg
node 150.9741418460225 2.6309e-05 deg
peri 293.1159004328328 3.1802e-05 deg
M 72.59122804790613 1.5684e-05 deg
tp 2457258.544807017946
(2015-Aug-24.04480702)
7.3648e-05 JED
period 1695.850487503778
4.64
1.197e-05
3.277e-08
d
yr
n .2122828649416524 1.4984e-09 deg/d
Q 3.343734958476854 1.5734e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1426  
   data-arc span      21956 days (60.11 yr)  
   first obs. used      1956-03-09  
   last obs. used      2016-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51371  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:59:06  

Additional Information
 Earth MOID = 1.25215 au 
 Jupiter MOID = 1.94738 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 13.1 mag n/a MPO358703  
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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