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30406 Middleman (2000 KU54)
Classification: Main-belt Asteroid          SPK-ID: 2030406
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1157296131878235 3.112e-08  
a 2.252808598135219 5.7025e-09 au
q 1.992091930486827 7.0669e-08 au
i 3.570892754194535 3.5664e-06 deg
node 153.7369233491196 5.4841e-05 deg
peri 267.1439611714533 5.7119e-05 deg
M 201.1161623804239 1.5907e-05 deg
tp 2459745.582312421209
(2022-Jun-15.08231242)
5.5169e-05 TDB
period 1235.050936656492
3.38
4.6894e-06
1.284e-08
d
yr
n .2914859535871336 1.1068e-09 deg/d
Q 2.513525265783611 6.3625e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1825  
   data-arc span      14091 days (38.58 yr)  
   first obs. used      1981-11-25  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49601  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:34:43  

Additional Information
 Earth MOID = 1.00782 au 
 Jupiter MOID = 2.75684 au 
 T_jup = 3.614 
[ 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 14.8   n/a MPO459074  
diameter diameter 3.337 km 0.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.209   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30406 Middleman           Discovered 2000 May 27 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Elaine Middleman mentored a finalist in the 2015 Intel Science Talent Search (STS), a science competition for high school seniors. She teaches at the Castilleja School, Palo Alto, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-07-02Last Updated: 2015-07-06

[ show close-approach data ]
Alternate Designations
 2000 KU54 = 1981 WY7 = 1998 XN76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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