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JPL Small-Body Database Browser
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71083 (1999 XO121)
Classification: Main-belt Asteroid          SPK-ID: 2071083
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1964315312755302 2.9524e-08  
a 2.554975605979918 1.3838e-08 au
q 2.053097835325657 7.5465e-08 au
i 12.65954642366603 5.9688e-06 deg
node 53.95139635768479 1.7363e-05 deg
peri 255.4673322373316 2.521e-05 deg
M 4.222497669212518 2.0216e-05 deg
tp 2458583.003729614797
(2019-Apr-09.50372961)
8.3698e-05 TDB
period 1491.689950381383
4.08
1.2119e-05
3.318e-08
d
yr
n .2413370150465639 1.9607e-09 deg/d
Q 3.056853376634179 1.6556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1068  
   data-arc span      6826 days (18.69 yr)  
   first obs. used      1999-11-03  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56136  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:13:15  

Additional Information
 Earth MOID = 1.08085 au 
 Jupiter MOID = 2.29436 au 
 T_jup = 3.377 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO299430  
diameter diameter 3.369 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.225   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71083 (1999 XO121)          Discovered 1999-Dec-05 by CSS at Catalina
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XO121 = 2002 JB33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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