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15936 (1997 YM4)
Classification: Main-belt Asteroid          SPK-ID: 2015936
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1730756953832723 4.5791e-08  
a 2.577613394101916 1.3101e-08 au
q 2.13149116348849 1.2179e-07 au
i 12.72922712892832 3.4828e-06 deg
node 269.9064110419325 2.2605e-05 deg
peri 59.45073974323785 2.47e-05 deg
M 239.7536443034562 1.2143e-05 deg
tp 2459505.387384147736
(2021-Oct-17.88738415)
5.2157e-05 TDB
period 1511.558976073063
4.14
1.1524e-05
3.155e-08
d
yr
n .2381647065702046 1.8158e-09 deg/d
Q 3.023735624715342 1.5369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1944  
   data-arc span      16498 days (45.17 yr)  
   first obs. used      1975-04-20  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:30:28  

Additional Information
 Earth MOID = 1.15014 au 
 Jupiter MOID = 2.35441 au 
 T_jup = 3.371 
[ 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 13.4   n/a MPO337393  
diameter diameter 4.773 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.214   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15936 (1997 YM4)          Discovered 1997-Dec-22 by Zoltowski, F. B. at Woomera
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 YM4 = 1989 YT6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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