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15996 (1998 YC12)
Classification: Main-belt Asteroid          SPK-ID: 2015996
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1698046635473455 2.9067e-08  
a 2.299948473990118 7.4493e-09 au
q 1.909406497187995 6.8348e-08 au
i 7.272567872769311 4.0833e-06 deg
node 314.0800989163908 2.5311e-05 deg
peri 291.1758518691242 2.7976e-05 deg
M 298.9637613910272 1.2643e-05 deg
tp 2459216.503529760500
(2021-Jan-02.00352976)
4.5036e-05 TDB
period 1274.018066741559
3.49
6.1896e-06
1.695e-08
d
yr
n .2825705611229984 1.3728e-09 deg/d
Q 2.690490450792241 8.7142e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1925  
   data-arc span      13932 days (38.14 yr)  
   first obs. used      1982-04-20  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:30:01  

Additional Information
 Earth MOID = .910318 au 
 Jupiter MOID = 2.38753 au 
 T_jup = 3.562 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO452397  
diameter diameter 5.093 km 0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.143   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15996 (1998 YC12)          Discovered 1998-Dec-27 by Kobayashi, T. at Oizumi
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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