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101691 (1999 CO120)
Classification: Main-belt Asteroid          SPK-ID: 2101691
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2075956638281821 4.3217e-08  
a 3.085120273719106 1.8053e-08 au
q 2.444662682506605 1.3776e-07 au
i 19.58610805130028 5.1164e-06 deg
node 79.04728053427112 1.4579e-05 deg
peri 13.83570191974638 2.2516e-05 deg
M 31.49655105830242 1.5378e-05 deg
tp 2459027.332225380344
(2020-Jun-26.83222538)
8.3812e-05 TDB
period 1979.276992826283
5.42
1.7373e-05
4.756e-08
d
yr
n .1818845979136769 1.5964e-09 deg/d
Q 3.725577864931607 2.18e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-11-25  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53384  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:29:27  

Additional Information
 Earth MOID = 1.46453 au 
 Jupiter MOID = 1.55852 au 
 T_jup = 3.106 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457127.5 (2015-Apr-15.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2061244988872947 4.2906e-08  
q 2.450123382375258 1.3619e-07 au
tp 2457051.787933662255
(2015-Jan-29.28793366)
7.8419e-05 TDB
node 79.14787955274049 1.4585e-05 deg
peri 14.33148947579078 2.2629e-05 deg
i 19.57797846884383 5.1129e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-11-25  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53384  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:29:27  

Additional Information
 Jupiter MOID = 1.55852 au 
 T_jup = 3.106 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.840940075295865E-15 -5.813450880254687E-15 -1.497592580221355E-12 4.359328639800357E-15 -3.636128764092671E-13 -1.906782444901745E-15
q -5.813450880254687E-15 1.854647314000921E-14 4.869627141036788E-12 -1.031236035796357E-14 1.175996456195224E-12 6.103781416567456E-15
tp -1.497592580221355E-12 4.869627141036788E-12 6.14947325063233E-9 -2.762484788616957E-12 1.385054894584243E-9 -4.642860354717899E-12
node 4.359328639800357E-15 -1.031236035796357E-14 -2.762484788616957E-12 2.127245892583844E-10 -2.004481044340822E-10 -2.087325758346476E-11
peri -3.636128764092671E-13 1.175996456195224E-12 1.385054894584243E-9 -2.004481044340822E-10 5.120769422750288E-10 1.866377340977514E-11
i -1.906782444901745E-15 6.103781416567456E-15 -4.642860354717899E-12 -2.087325758346476E-11 1.866377340977514E-11 2.614159834907772E-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 14.38   n/a E2021B55  
diameter diameter 3.743 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.317   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101691 (1999 CO120)          Discovered 1999-Feb-11 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 CO120 = 2000 JT9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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