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120176 (2003 KQ30)
Classification: Main-belt Asteroid          SPK-ID: 2120176
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08389090771562717 4.3943e-08  
a 3.110572811388028 2.9874e-08 au
q 2.849624034725136 1.3606e-07 au
i 11.54946545401661 8.5388e-06 deg
node 187.5293183383803 2.4329e-05 deg
peri 263.6094115326876 5.8463e-05 deg
M 204.4864658010244 5.4527e-05 deg
tp 2460066.114803111937
(2023-May-01.61480311)
0.00030861 TDB
period 2003.821279770967
5.49
2.8867e-05
7.903e-08
d
yr
n .1796567406655884 2.5882e-09 deg/d
Q 3.37152158805092 3.238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      8467 days (23.18 yr)  
   first obs. used      1997-04-16  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .65521  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:05:16  

Additional Information
 Earth MOID = 1.89541 au 
 Jupiter MOID = 1.85745 au 
 T_jup = 3.182 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456646.5 (2013-Dec-20.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08774002752839939 4.4217e-08  
q 2.830828617423603 1.3732e-07 au
tp 2456063.367448316396
(2012-May-15.86744832)
0.00027472 TDB
node 187.7233023327912 2.4333e-05 deg
peri 262.6989243868372 5.6067e-05 deg
i 11.55728446784044 8.5447e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      315  
   data-arc span      8467 days (23.18 yr)  
   first obs. used      1997-04-16  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .65521  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:05:16  

Additional Information
 Jupiter MOID = 1.85745 au 
 T_jup = 3.182 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.955157368373534E-15 -5.9495271848869E-15 -1.811277388495838E-12 -1.72838537483204E-15 -3.543220721099472E-13 1.443128473227316E-15
q -5.9495271848869E-15 1.885729888995444E-14 7.249798352681307E-12 -2.492061299938374E-16 1.438689604123411E-12 -3.266256581550767E-15
tp -1.811277388495838E-12 7.249798352681307E-12 7.547278040323117E-8 -6.12303921353743E-11 1.388532136621703E-8 -1.939108602102157E-11
node -1.72838537483204E-15 -2.492061299938374E-16 -6.12303921353743E-11 5.920901616163446E-10 -5.914329192846791E-10 6.460929381498834E-12
peri -3.543220721099472E-13 1.438689604123411E-12 1.388532136621703E-8 -5.914329192846791E-10 3.143547447381012E-9 -9.822366706997475E-12
i 1.443128473227316E-15 -3.266256581550767E-15 -1.939108602102157E-11 6.460929381498834E-12 -9.822366706997475E-12 7.301223560255112E-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 15.29   n/a E2021B55  

120176 (2003 KQ30)          Discovered 2003-May-26 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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