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79956 (1999 CW105)
Classification: Main-belt Asteroid          SPK-ID: 2079956
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .156678311920605 3.4537e-08  
a 2.721042710510218 1.4938e-08 au
q 2.294714331963609 9.6809e-08 au
i 8.480906581271453 5.3892e-06 deg
node 299.6942187560604 2.8201e-05 deg
peri 129.4154082032855 3.4362e-05 deg
M 319.9039582942834 1.8931e-05 deg
tp 2459183.099870489193
(2020-Nov-29.59987049)
8.6589e-05 TDB
period 1639.462415232312
4.49
1.35e-05
3.696e-08
d
yr
n .2195841738457834 1.8082e-09 deg/d
Q 3.147371089056826 1.7278e-08 au
  Orbit Determination Parameters
   # obs. used (total)      937  
   data-arc span      7975 days (21.83 yr)  
   first obs. used      1999-01-08  
   last obs. used      2020-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53233  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:13:55  

Additional Information
 Earth MOID = 1.32016 au 
 Jupiter MOID = 2.14548 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457210.5 (2015-Jul-07.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1555118750632394 3.3936e-08  
q 2.299614036945203 9.4934e-08 au
tp 2457536.259558351501
(2016-May-27.75955835)
8.5528e-05 TDB
node 299.9682787407414 2.8265e-05 deg
peri 128.0090377877058 3.4568e-05 deg
i 8.465028026372945 5.3855e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      937  
   data-arc span      7975 days (21.83 yr)  
   first obs. used      1999-01-08  
   last obs. used      2020-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53233  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:13:55  

Additional Information
 Jupiter MOID = 2.14548 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.151685523303274E-15 -3.193273998000468E-15 5.430066790414377E-13 4.513518994774031E-16 1.466762493168206E-13 -2.120087858857301E-16
q -3.193273998000468E-15 9.012413009743938E-15 -1.315612420127975E-12 2.958875088415953E-16 -3.735899747765184E-13 1.304278472420741E-15
tp 5.430066790414377E-13 -1.315612420127975E-12 7.315031341360066E-9 6.683555497658972E-13 1.715735359370754E-9 8.360684755331557E-12
node 4.513518994774031E-16 2.958875088415953E-16 6.683555497658972E-13 7.989019674221618E-10 -7.897970392813992E-10 4.421525518553669E-11
peri 1.466762493168206E-13 -3.735899747765184E-13 1.715735359370754E-9 -7.897970392813992E-10 1.194954388031634E-9 -4.191761839398646E-11
i -2.120087858857301E-16 1.304278472420741E-15 8.360684755331557E-12 4.421525518553669E-11 -4.191761839398646E-11 2.900374519632785E-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 14.9   n/a MPO417376  

79956 (1999 CW105)          Discovered 1999-Feb-12 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2008-Jan-11 05:21 < 00:01 Hebe 0.0480723958761822 0.0480714461381082 0.0480733456148019 7.70240535849895 7.70240534170954 2454476.722915690 0.362764892157881 63.7849169894834 46.4985673491709 -78.1727168696232 153103.602543535 T 23 CATAB v2.0f-lin.ifort 2020-Dec-18 04:13:58 2020-Dec-18 04:13
2174-Mar-16 04:36 00:07 Hebe 0.0388278735029489 0.0388173020983273 0.0388385100022992 7.80595975252828 7.80595973201724 2515171.691591168 6.88931868242562 2571.20394510052 46.3866551136143 -78.1785703582604 122543.507703656 T 23 CATAB v2.0f-lin.ifort 2020-Dec-18 04:13:58 2020-Dec-18 04:13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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