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24964 (1997 UY20)
Classification: Main-belt Asteroid          SPK-ID: 2024964
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2321907907182319 3.2711e-08  
a 3.091746968834784 1.8771e-08 au
q 2.373871795440339 9.8868e-08 au
i 11.6246848421087 5.3959e-06 deg
node 206.2894617433615 1.8175e-05 deg
peri 83.4458568099477 2.1302e-05 deg
M 185.033426963926 1.1603e-05 deg
tp 2460361.565804204272
(2024-Feb-21.06580420)
6.7804e-05 TDB
period 1985.657508659711
5.44
1.8083e-05
4.951e-08
d
yr
n .1813001479006289 1.6511e-09 deg/d
Q 3.809622142229229 2.313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1198  
   data-arc span      10802 days (29.57 yr)  
   first obs. used      1991-07-14  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50235  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:05:13  

Additional Information
 Earth MOID = 1.39261 au 
 Jupiter MOID = 1.57793 au 
 T_jup = 3.152 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457142.5 (2015-Apr-30.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2349511093991189 3.2351e-08  
q 2.361111007438708 9.7663e-08 au
tp 2456395.577440550274
(2013-Apr-13.07744055)
5.8969e-05 TDB
node 206.3638197539342 1.8188e-05 deg
peri 83.6042625666821 2.1282e-05 deg
i 11.62791338799284 5.3987e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1198  
   data-arc span      10802 days (29.57 yr)  
   first obs. used      1991-07-14  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50235  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:05:13  

Additional Information
 Jupiter MOID = 1.57793 au 
 T_jup = 3.152 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.046616288599864E-15 -3.12749940207726E-15 -2.470376557884811E-13 -1.776274111635648E-16 -5.380807618999127E-14 -2.619176083329103E-15
q -3.12749940207726E-15 9.538085636847674E-15 6.936656281824731E-13 9.515926824376223E-16 1.678524220772896E-13 9.181067547523578E-15
tp -2.470376557884811E-13 6.936656281824731E-13 3.477388378739886E-9 1.522673258316814E-12 6.598608703705107E-10 3.544228024900463E-12
node -1.776274111635648E-16 9.515926824376223E-16 1.522673258316814E-12 3.307949123215817E-10 -3.233969516808407E-10 5.294000053556521E-12
peri -5.380807618999127E-14 1.678524220772896E-13 6.598608703705107E-10 -3.233969516808407E-10 4.529436911971367E-10 -4.49002311958108E-12
i -2.619176083329103E-15 9.181067547523578E-15 3.544228024900463E-12 5.294000053556521E-12 -4.49002311958108E-12 2.914586527669824E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO502345  

24964 (1997 UY20)          Discovered 1997-Oct-27 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1997 UY20 = 1991 NK2 = 1996 JH13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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