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109802 (2001 RU94)
Classification: Main-belt Asteroid          SPK-ID: 2109802
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1537204877347357 3.3112e-08  
a 2.613686662974768 9.6784e-09 au
q 2.211909474356513 8.6507e-08 au
i 4.215925262295522 3.4767e-06 deg
node 307.7660927070623 5.8389e-05 deg
peri 125.1423402662533 6.0431e-05 deg
M 102.2996646906553 1.4683e-05 deg
tp 2458561.918388494614
(2019-Mar-19.41838849)
6.2546e-05 TDB
period 1543.400759126451
4.23
8.5727e-06
2.347e-08
d
yr
n .2332511487189861 1.2956e-09 deg/d
Q 3.015463851593023 1.1166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1375  
   data-arc span      11077 days (30.33 yr)  
   first obs. used      1989-12-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:09:06  

Additional Information
 Earth MOID = 1.23002 au 
 Jupiter MOID = 2.24998 au 
 T_jup = 3.388 
[ 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 14.9   n/a MPO338042  
diameter diameter 5.187 km 1.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.072   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

109802 (2001 RU94)          Discovered 2001-Sep-11 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 RU94 = 1989 YK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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