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74499 (1999 CH141)
Classification: Main-belt Asteroid          SPK-ID: 2074499
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2190563388101013 3.9238e-08  
a 3.117713273171795 1.8114e-08 au
q 2.434758418091124 1.2755e-07 au
i .804498509598932 4.2984e-06 deg
node 299.0007176847749 0.00042199 deg
peri 145.2785486132536 0.00042227 deg
M 336.1625780443302 1.53e-05 deg
tp 2459133.640280669608
(2020-Oct-11.14028067)
8.615e-05 TDB
period 2010.725032689978
5.51
1.7524e-05
4.798e-08
d
yr
n .1790398956332616 1.5604e-09 deg/d
Q 3.800668128252466 2.2082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      10198 days (27.92 yr)  
   first obs. used      1992-11-28  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5347  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:43:26  

Additional Information
 Earth MOID = 1.45095 au 
 Jupiter MOID = 1.44508 au 
 T_jup = 3.179 
[ show covariance matrix ]

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 15.1   n/a MPO313949  
diameter diameter 5.101 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74499 (1999 CH141)          Discovered 1999-Feb-10 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CH141 = 2002 QS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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