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97857 (2000 QJ20)
Classification: Main-belt Asteroid          SPK-ID: 2097857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1615654170769998 6.0229e-08  
a 2.338634693107333 1.1728e-08 au
q 1.960792203524705 1.3722e-07 au
i 4.00904109360625 6.3095e-06 deg
node 323.8733866270402 8.1863e-05 deg
peri 344.2487767884544 8.4633e-05 deg
M 213.7531376014005 2.4811e-05 deg
tp 2459531.171868264103
(2021-Nov-12.67186826)
9.19e-05 TDB
period 1306.297239077771
3.58
9.8261e-06
2.69e-08
d
yr
n .2755881197866999 2.073e-09 deg/d
Q 2.71647718268996 1.3622e-08 au
  Orbit Determination Parameters
   # obs. used (total)      547  
   data-arc span      7624 days (20.87 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56076  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 00:24:42  

Additional Information
 Earth MOID = .946483 au 
 Jupiter MOID = 2.52928 au 
 T_jup = 3.545 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457263.5 (2015-Aug-29.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1624083100235208 6.0381e-08  
q 1.95832452125355 1.377e-07 au
tp 2456918.062362476167
(2014-Sep-17.56236248)
8.3707e-05 TDB
node 323.9485730107624 8.1753e-05 deg
peri 344.0605076837017 8.4502e-05 deg
i 4.012641859958174 6.3143e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      547  
   data-arc span      7624 days (20.87 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56076  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 00:24:42  

Additional Information
 Jupiter MOID = 2.52928 au 
 T_jup = 3.545 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.645844066287115E-15 -8.296929348262927E-15 3.10315199803568E-12 4.841619983415996E-14 7.291416394502532E-13 -1.275602570112906E-15
q -8.296929348262927E-15 1.896182869629046E-14 -7.017416978878846E-12 -1.081198149346385E-13 -1.645476019930077E-12 3.121088118604725E-15
tp 3.10315199803568E-12 -7.017416978878846E-12 7.006885854618552E-9 4.024651191955692E-11 1.824715976329511E-9 -4.34134180765732E-12
node 4.841619983415996E-14 -1.081198149346385E-13 4.024651191955692E-11 6.68347716536904E-9 -6.655562940996666E-9 2.207568080364186E-10
peri 7.291416394502532E-13 -1.645476019930077E-12 1.824715976329511E-9 -6.655562940996666E-9 7.140662642310693E-9 -2.213549550314516E-10
i -1.275602570112906E-15 3.121088118604725E-15 -4.34134180765732E-12 2.207568080364186E-10 -2.213549550314516E-10 3.987004997635496E-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 16.3   n/a MPO320158  
diameter diameter 1.707 km 0.586 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.152   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97857 (2000 QJ20)          Discovered 2000-Aug-24 by LINEAR at Socorro
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

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