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20824 (2000 UX9)
Classification: Main-belt Asteroid          SPK-ID: 2020824
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2417214035852081 3.6499e-08  
a 2.297070817796611 9.4067e-09 au
q 1.741819635584192 8.7268e-08 au
i 2.629749883775253 4.1434e-06 deg
node 216.1433638863245 7.9874e-05 deg
peri 125.7171024933277 8.0266e-05 deg
M 327.5433243395855 9.3172e-06 deg
tp 2459315.146694733661
(2021-Apr-10.64669473)
3.3188e-05 TDB
period 1271.627770383641
3.48
7.8112e-06
2.139e-08
d
yr
n .2831017129260952 1.739e-09 deg/d
Q 2.852322000009029 1.1681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      974  
   data-arc span      25204 days (69.00 yr)  
   first obs. used      1951-09-04  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55142  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:32:21  

Additional Information
 Earth MOID = .733582 au 
 Jupiter MOID = 2.56423 au 
 T_jup = 3.553 
[ 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 15.82   n/a E2021B10  
diameter diameter 2.051 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.220   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

20824 (2000 UX9)          Discovered 2000-Oct-24 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 UX9 = 1951 RP = 1998 BX4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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