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152781 (1999 RH190)
Classification: Main-belt Asteroid          SPK-ID: 2152781
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1879329905372396 4.9342e-08  
a 3.052190197375277 2.2322e-08 au
q 2.478582965894093 1.6176e-07 au
i 12.29470045645451 4.2869e-06 deg
node 198.072580369731 1.8935e-05 deg
peri 202.4418849581265 2.328e-05 deg
M 320.2556212721294 1.6133e-05 deg
tp 2459415.525035741078
(2021-Jul-20.02503574)
8.8776e-05 TDB
period 1947.671981409165
5.33
2.1366e-05
5.85e-08
d
yr
n .1848360521875637 2.0276e-09 deg/d
Q 3.62579742885646 2.6517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      750  
   data-arc span      10432 days (28.56 yr)  
   first obs. used      1992-04-27  
   last obs. used      2020-11-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47141  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:39  

Additional Information
 Earth MOID = 1.48946 au 
 Jupiter MOID = 1.82728 au 
 T_jup = 3.175 
[ 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 14.94   n/a E2021B55  
diameter diameter 4.228 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.108   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

152781 (1999 RH190)          Discovered 1999-Sep-10 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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