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190373 (1999 RY84)
Classification: Main-belt Asteroid          SPK-ID: 2190373
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2191358034054559 7.8136e-08  
a 2.781937735696212 2.0951e-08 au
q 2.172315574960468 2.1417e-07 au
i 3.387624407566724 7.3942e-06 deg
node 333.9049338340247 9.1057e-05 deg
peri 39.93795745274616 9.1791e-05 deg
M 195.5873141785697 1.3996e-05 deg
tp 2459974.520313270273
(2023-Jan-30.02031327)
7.217e-05 TDB
period 1694.804214073474
4.64
1.9145e-05
5.242e-08
d
yr
n .2124139160208585 2.3995e-09 deg/d
Q 3.391559896431955 2.5542e-08 au
  Orbit Determination Parameters
   # obs. used (total)      349  
   data-arc span      7876 days (21.56 yr)  
   first obs. used      1999-08-22  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:22  

Additional Information
 Earth MOID = 1.1728 au 
 Jupiter MOID = 2.08865 au 
 T_jup = 3.295 
[ 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 16.05   n/a E2021B55  
diameter diameter 4.033 km 0.785 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190373 (1999 RY84)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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