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187878 (2000 QL120)
Classification: Main-belt Asteroid          SPK-ID: 2187878
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1972751452971501 5.6607e-08  
a 2.644817111820136 1.567e-08 au
q 2.12306043180143 1.5439e-07 au
i 6.12417673538258 6.6607e-06 deg
node 195.936878375306 3.9029e-05 deg
peri 138.4684246817889 4.0457e-05 deg
M 269.024990692745 1.067e-05 deg
tp 2459597.519194533589
(2022-Jan-18.01919453)
4.7891e-05 TDB
period 1571.056833304372
4.30
1.3962e-05
3.823e-08
d
yr
n .2291451158026024 2.0364e-09 deg/d
Q 3.166573791838843 1.8761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      8111 days (22.21 yr)  
   first obs. used      1998-03-02  
   last obs. used      2020-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50046  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:11  

Additional Information
 Earth MOID = 1.11633 au 
 Jupiter MOID = 2.24948 au 
 T_jup = 3.357 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457294.5 (2015-Sep-29.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1956210781918011 5.6425e-08  
q 2.130783202178039 1.5365e-07 au
tp 2458024.734953995589
(2017-Sep-28.23495400)
4.4805e-05 TDB
node 195.9775114522164 3.9101e-05 deg
peri 138.0325064502489 4.0552e-05 deg
i 6.113646636746043 6.6547e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      8111 days (22.21 yr)  
   first obs. used      1998-03-02  
   last obs. used      2020-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50046  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:11  

Additional Information
 Jupiter MOID = 2.24948 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.183820660650417E-15 -8.643080278357629E-15 7.208154564800507E-13 3.116261007310842E-15 2.434236122486866E-13 -4.521920365617698E-15
q -8.643080278357629E-15 2.360696536816339E-14 -1.83304367564126E-12 -8.480661995066405E-15 -6.545868970016932E-13 1.205622582990205E-14
tp 7.208154564800507E-13 -1.83304367564126E-12 2.007509777138201E-9 3.041326815259721E-12 4.851786510065575E-10 -1.170201400896611E-12
node 3.116261007310842E-15 -8.480661995066405E-15 3.041326815259721E-12 1.528890769213071E-9 -1.519182897344298E-9 -1.055377651393835E-10
peri 2.434236122486866E-13 -6.545868970016932E-13 4.851786510065575E-10 -1.519182897344298E-9 1.644463365423685E-9 1.045911459063232E-10
i -4.521920365617698E-15 1.205622582990205E-14 -1.170201400896611E-12 -1.055377651393835E-10 1.045911459063232E-10 4.428490641066661E-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 15.75   n/a E2021B55  
diameter diameter 3.096 km 0.583 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.116   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

187878 (2000 QL120)          Discovered 2000-Aug-25 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 2000 QL120 = 2003 FC44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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