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101903 (1999 RR)
Classification: Main-belt Asteroid          SPK-ID: 2101903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685169178162423 4.6338e-08  
a 3.144942831149277 2.2185e-08 au
q 2.614966758535714 1.4537e-07 au
i 6.990855279331015 4.5409e-06 deg
node 85.39511693553952 4.083e-05 deg
peri 332.9524018781262 4.273e-05 deg
M 209.7417700217318 1.5088e-05 deg
tp 2459850.763091643566
(2022-Sep-28.26309164)
9.0441e-05 TDB
period 2037.124442607597
5.58
2.1555e-05
5.901e-08
d
yr
n .1767196900053814 1.8699e-09 deg/d
Q 3.67491890376284 2.5923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      7235 days (19.81 yr)  
   first obs. used      1999-08-12  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53313  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:28:37  

Additional Information
 Earth MOID = 1.6299 au 
 Jupiter MOID = 1.6706 au 
 T_jup = 3.176 
[ 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 14.1   n/a MPO436476  
diameter diameter 7.690 km 0.353 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101903 (1999 RR)          Discovered 1999-Sep-03 by Sarounova, L. at Ondrejov
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RR = 2000 VQ37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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