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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1697791553367324 1.5917e-08  
a 2.299737158595029 7.2664e-09 au
q 1.909289726312268 3.79e-08 au
i 7.272608419226298 6.0442e-07 deg
node 314.0802259990049 6.9139e-06 deg
peri 291.2137916777947 8.9869e-06 deg
M 355.4503561374543 8.205e-06 deg
tp 2459216.598693503094
(2021-Jan-02.09869350)
2.9069e-05 TDB
period 1273.842488820871
3.49
6.0374e-06
1.653e-08
d
yr
n .2826095087574233 1.3394e-09 deg/d
Q 2.69018459087779 8.5001e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1952  
   data-arc span      13932 days (38.14 yr)  
   first obs. used      1982-04-20  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49393  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:15:46  

Additional Information
 Earth MOID = .908691 au 
 Jupiter MOID = 2.38682 au 
 T_jup = 3.562 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456987.5 (2014-Nov-26.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1700749684375954 1.5896e-08  
q 1.908855488134086 3.7856e-08 au
tp 2456668.432676718074
(2014-Jan-10.93267672)
2.5646e-05 TDB
node 314.1272591965092 6.911e-06 deg
peri 291.1655071147879 8.9838e-06 deg
i 7.274564109067572 6.044e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      1952  
   data-arc span      13932 days (38.14 yr)  
   first obs. used      1982-04-20  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49393  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:15:46  

Additional Information
 Jupiter MOID = 2.38682 au 
 T_jup = 3.562 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.526892124185652E-16 -5.941728737555187E-16 2.74020125619935E-13 -6.565538985931114E-15 6.694627727841253E-14 1.495767966443932E-17
q -5.941728737555187E-16 1.433063549020827E-15 -6.204027536303047E-13 1.556735346696953E-14 -1.486581530635149E-13 -4.802969585544384E-17
tp 2.74020125619935E-13 -6.204027536303047E-13 6.577101642503069E-10 8.773444075204381E-12 1.423300405034189E-10 -3.187450897640919E-12
node -6.565538985931114E-15 1.556735346696953E-14 8.773444075204381E-12 4.776255905148993E-11 -4.640978326440659E-11 -1.535667240933367E-12
peri 6.694627727841253E-14 -1.486581530635149E-13 1.423300405034189E-10 -4.640978326440659E-11 8.070791321018862E-11 7.099943145596712E-13
i 1.495767966443932E-17 -4.802969585544384E-17 -3.187450897640919E-12 -1.535667240933367E-12 7.099943145596712E-13 3.653012168315271E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.36   n/a E2021B10  
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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