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JPL Small-Body Database Browser
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74731 (1999 RM176)
Classification: Main-belt Asteroid          SPK-ID: 2074731
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1471551432551308 5.0447e-08  
a 2.175416085458392 7.0344e-09 au
q 1.855292419763246 1.1123e-07 au
i 3.169738552291417 5.5684e-06 deg
node 328.0121991495085 6.164e-05 deg
peri 345.913504333581 6.2984e-05 deg
M 70.41568837003933 1.2305e-05 deg
tp 2458371.266091911318
(2018-Sep-09.76609191)		 4.0018e-05 TDB
period 1171.957681905415
3.21		 5.6844e-06
1.556e-08		 d
yr
n .307178326963733 1.4899e-09 deg/d
Q 2.495539751153537 8.0695e-09 au
   Orbit Determination Parameters
   # obs. used (total)      773  
   data-arc span      7381 days (20.21 yr)  
   first obs. used      1999-08-12  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56118  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:56:02  

Additional Information
 Earth MOID = .840752 au 
 Jupiter MOID = 2.75518 au 
 T_jup = 3.669 
[ 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 16.1   n/a MPO453160  
diameter diameter 1.951 km 0.262 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.168   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74731 (1999 RM176)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RM176 = 1999 RD256 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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