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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2009053800643709 4.2225e-08  
a 2.781481749102044 2.3198e-08 AU
q 2.222667101156587 1.2215e-07 AU
i 8.236318268560964 7.1038e-06 deg
node 150.9761691368822 3.8459e-05 deg
peri 292.9749027125144 4.4762e-05 deg
M 305.283945500134 2.5104e-05 deg
tp 2457258.028335889364
(2015-Aug-23.52833589)
0.00012019 JED
period 1694.387538860244
4.64
2.1197e-05
5.803e-08
d
yr
n .2124661517766824 2.658e-09 deg/d
Q 3.340296397047502 2.7859e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      967  
   data-arc span      21361 days (58.48 yr)  
   first obs. used      1956-03-09  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54895  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:51:41  

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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