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190368 (1999 RR56)
Classification: Main-belt Asteroid          SPK-ID: 2190368
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3122512682643549 4.4635e-08  
a 2.784333837127717 1.3482e-08 au
q 1.914922065213229 1.2147e-07 au
i 9.539435391612225 5.5848e-06 deg
node 316.3146031597503 2.8865e-05 deg
peri 123.8034868604369 3.0317e-05 deg
M 166.7965730507173 7.9867e-06 deg
tp 2458414.242126376944
(2018-Oct-22.74212638)
3.5182e-05 TDB
period 1696.994304662561
4.65
1.2326e-05
3.375e-08
d
yr
n .2121397809119838 1.5408e-09 deg/d
Q 3.653745609042204 1.7692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      8854 days (24.24 yr)  
   first obs. used      1996-03-27  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51779  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:20  

Additional Information
 Earth MOID = .949036 au 
 Jupiter MOID = 1.69715 au 
 T_jup = 3.239 
[ 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 15.75   n/a E2021B55  
diameter diameter 2.784 km 0.599 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.131   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

190368 (1999 RR56)          Discovered 1999-Sep-11 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

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