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103540 (2000 BT18)
Classification: Main-belt Asteroid          SPK-ID: 2103540
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1269944724095221 4.095e-08  
a 2.807135578106565 1.7185e-08 au
q 2.450644876382924 1.1372e-07 au
i 6.52638304604088 4.7139e-06 deg
node 318.0484069065084 4.5429e-05 deg
peri 129.0690495299645 5.0772e-05 deg
M 187.948565915044 2.2805e-05 deg
tp 2460021.511623759641
(2023-Mar-18.01162376)		 0.00011249 TDB
period 1717.882714116328
4.70		 1.5775e-05
4.319e-08		 d
yr
n .2095602901419161 1.9244e-09 deg/d
Q 3.163626279830207 1.9368e-08 au
   Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      9798 days (26.83 yr)  
   first obs. used      1993-08-17  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54979  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:48:01  

Additional Information
 Earth MOID = 1.47307 au 
 Jupiter MOID = 2.02933 au 
 T_jup = 3.301 
[ 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 15.28   n/a E2021B55  
diameter diameter 4.953 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103540 (2000 BT18)          Discovered 2000-Jan-30 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2000 BT18 = 1998 RL46 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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