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74684 (1999 RG123)
Classification: Main-belt Asteroid          SPK-ID: 2074684
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09681422352439904 3.4662e-08  
a 2.373116770302299 1.0432e-08 au
q 2.143365312852752 8.3005e-08 au
i 6.388103219606586 3.5598e-06 deg
node 244.8784873406322 4.2525e-05 deg
peri 163.8777696132019 4.9006e-05 deg
M 82.11359359078071 2.4609e-05 deg
tp 2458295.928229736596
(2018-Jun-26.42822974)
9.0684e-05 TDB
period 1335.294590092522
3.66
8.8047e-06
2.411e-08
d
yr
n .2696034288396659 1.7777e-09 deg/d
Q 2.602868227751846 1.1442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      9597 days (26.28 yr)  
   first obs. used      1992-10-31  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5316  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:22:15  

Additional Information
 Earth MOID = 1.15411 au 
 Jupiter MOID = 2.71021 au 
 T_jup = 3.529 
[ 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 15.4   n/a MPO422176  
diameter diameter 2.074 km 0.499 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.284   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74684 (1999 RG123)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RG123 = 1992 UF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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