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24840 (1995 UN8)
Classification: Main-belt Asteroid          SPK-ID: 2024840
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2072459638418796 2.9709e-08  
a 2.300590164343315 6.4246e-09 au
q 1.823802138328836 6.8127e-08 au
i 6.796589913990678 3.0764e-06 deg
node 28.28782371967144 2.781e-05 deg
peri 291.0821355434608 2.8649e-05 deg
M 135.379407344946 7.2331e-06 deg
tp 2458721.200006901462
(2019-Aug-25.70000690)
2.5462e-05 TDB
period 1274.551284419662
3.49
5.3389e-06
1.462e-08
d
yr
n .2824523457005638 1.1832e-09 deg/d
Q 2.777378190357794 7.7561e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2005  
   data-arc span      9260 days (25.35 yr)  
   first obs. used      1995-10-27  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47519  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:50:02  

Additional Information
 Earth MOID = .822862 au 
 Jupiter MOID = 2.5653 au 
 T_jup = 3.554 
[ 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 14.71   n/a MPCxxxxx  
diameter diameter 2.613 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.410   0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24840 (1995 UN8)          Discovered 1995-Oct-27 by Kobayashi, T. at Oizumi
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 UN8 = 1997 CX29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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