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JPL Small-Body Database Browser
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74735 (1999 RB180)
Classification: Main-belt Asteroid          SPK-ID: 2074735
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502922814070939 5.4015e-08  
a 2.359399928520263 1.2049e-08 au
q 2.004800330511218 1.3102e-07 au
i 5.576945170082884 4.8181e-06 deg
node 66.35720668385314 6.2075e-05 deg
peri 314.952307063195 6.434e-05 deg
M 124.3921195707693 1.9576e-05 deg
tp 2458143.105290489571
(2018-Jan-24.60529049)
7.0133e-05 TDB
period 1323.734140007758
3.62
1.014e-05
2.776e-08
d
yr
n .2719579325784331 2.0832e-09 deg/d
Q 2.713999526529308 1.3859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      7181 days (19.66 yr)  
   first obs. used      1999-09-09  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5574  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:55  

Additional Information
 Earth MOID = 1.01196 au 
 Jupiter MOID = 2.7404 au 
 T_jup = 3.531 
[ 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 15.8   n/a MPO432300  
diameter diameter 1.729 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.283   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74735 (1999 RB180)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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