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101979 (1999 RG53)
Classification: Main-belt Asteroid          SPK-ID: 2101979
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 .1889681520684101 4.9906e-08  
a 3.103536278704726 2.3884e-08 au
q 2.517066763240624 1.5791e-07 au
i 3.969759906672871 4.5242e-06 deg
node 272.9140836066993 8.3204e-05 deg
peri 85.92965598759494 8.4167e-05 deg
M 304.67536690394 1.618e-05 deg
tp 2459507.401992618234
(2021-Oct-19.90199262)
9.2201e-05 TDB
period 1997.025757960835
5.47
2.3053e-05
6.312e-08
d
yr
n .1802680804515994 2.0809e-09 deg/d
Q 3.690005794168828 2.8397e-08 au
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      8970 days (24.56 yr)  
   first obs. used      1995-12-23  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55977  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:44  

Additional Information
 Earth MOID = 1.5158 au 
 Jupiter MOID = 1.80583 au 
 T_jup = 3.190 
[ 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 5.001 km 0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101979 (1999 RG53)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RG53 = 1995 YD20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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