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109764 (2001 RE77)
Classification: Main-belt Asteroid          SPK-ID: 2109764
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 .130015635835921 3.7338e-08  
a 2.575225341551348 1.1914e-08 au
q 2.240405781348773 9.8536e-08 au
i 5.59644081798253 3.9345e-06 deg
node 92.1103340737598 4.4459e-05 deg
peri 291.661149455414 4.8e-05 deg
M 198.4530949977125 1.9782e-05 deg
tp 2459677.856689448723
(2022-Apr-08.35668945)
8.5607e-05 TDB
period 1509.458867058378
4.13
1.0475e-05
2.868e-08
d
yr
n .2384960649517832 1.655e-09 deg/d
Q 2.910044901753924 1.3463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1182  
   data-arc span      8180 days (22.40 yr)  
   first obs. used      1997-12-04  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51851  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:08:40  

Additional Information
 Earth MOID = 1.25153 au 
 Jupiter MOID = 2.54501 au 
 T_jup = 3.409 
[ 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 15.0   n/a MPO385476  

109764 (2001 RE77)          Discovered 2001-Sep-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 RE77 = 1997 YB21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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