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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2009456200486173 4.5306e-08  
a 2.781977600165235 2.6871e-08 AU
q 2.222951386338667 1.2706e-07 AU
i 8.235799787684055 7.1283e-06 deg
node 150.9754256764687 4.1989e-05 deg
peri 292.9293076966212 4.7849e-05 deg
M 262.8475946104107 2.5134e-05 deg
tp 2457257.882903490568
(2015-Aug-23.38290349)
0.00012246 JED
period 1694.840643382043
4.64
2.4556e-05
6.723e-08
d
yr
n .2124093503455418 3.0775e-09 deg/d
Q 3.341003813991802 3.2271e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      939  
   data-arc span      21297 days (58.31 yr)  
   first obs. used      1956-03-09  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55346  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:16:56  

Additional Information
 Earth MOID = 1.25364 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 12.9 mag n/a MPO265997  
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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