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21077 (1991 RG14)
Classification: Main-belt Asteroid          SPK-ID: 2021077
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1886487160669004 5.422e-08  
a 2.550128621981933 2.0613e-08 au
q 2.069050131639588 1.3815e-07 au
i 13.03175178487099 8.4312e-06 deg
node 341.5984041367148 3.6357e-05 deg
peri 37.82926264500844 4.7976e-05 deg
M 22.74101729884925 3.422e-05 deg
tp 2457506.538715928654
(2016-Apr-28.03871593)
0.00014085 JED
period 1487.447189418221
4.07
1.8035e-05
4.938e-08
d
yr
n .2420253993291724 2.9345e-09 deg/d
Q 3.031207112324279 2.4502e-08 au
  Orbit Determination Parameters
   # obs. used (total)      507  
   data-arc span      8815 days (24.13 yr)  
   first obs. used      1991-09-13  
   last obs. used      2015-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54917  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 16:35:40  

Additional Information
 Earth MOID = 1.08319 au 
 Jupiter MOID = 2.48395 au 
 T_jup = 3.380 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO302194  

21077 (1991 RG14)          Discovered 1991-Sep-13 by Holt, H. E. at Palomar
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RG14 = 1999 RU129 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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