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74741 (1999 RP184)
Classification: Main-belt Asteroid          SPK-ID: 2074741
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1923117420629447 4.8922e-08  
a 2.377102073080728 1.4765e-08 au
q 1.919957432345136 1.1762e-07 au
i 3.705395628068386 4.8481e-06 deg
node 68.17916888190695 8.7253e-05 deg
peri 250.6882872573769 8.9059e-05 deg
M 256.6698632441473 2.3556e-05 deg
tp 2459384.733013080335
(2021-Jun-19.23301308)
8.9983e-05 TDB
period 1338.659650047216
3.67
1.2472e-05
3.415e-08
d
yr
n .2689257123625879 2.5056e-09 deg/d
Q 2.83424671381632 1.7604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      8100 days (22.18 yr)  
   first obs. used      1998-02-23  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57832  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:08:12  

Additional Information
 Earth MOID = .910708 au 
 Jupiter MOID = 2.47253 au 
 T_jup = 3.513 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO453160  
diameter diameter 2.789 km 0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74741 (1999 RP184)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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