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30117 Childress (2000 FW36)
Classification: Main-belt Asteroid          SPK-ID: 2030117
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1537262507480278 2.7051e-08  
a 2.270275657992502 7.334e-09 au
q 1.921274692924803 6.1771e-08 au
i 3.352266050998118 3.1574e-06 deg
node 149.9923482673134 5.8472e-05 deg
peri 154.8501735087412 5.9576e-05 deg
M 284.856956583879 1.3069e-05 deg
tp 2459461.297002689381
(2021-Sep-03.79700269)
4.5949e-05 TDB
period 1249.442619036039
3.42
6.0544e-06
1.658e-08
d
yr
n .2881284778629887 1.3962e-09 deg/d
Q 2.6192766230602 8.4614e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1447  
   data-arc span      8972 days (24.56 yr)  
   first obs. used      1995-11-18  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53168  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:31:37  

Additional Information
 Earth MOID = .904858 au 
 Jupiter MOID = 2.60278 au 
 T_jup = 3.595 
[ 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 15.2   n/a MPO452593  
diameter diameter 2.646 km 0.491 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.303   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30117 Childress           Discovered 2000 Mar. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Stephanie Childress mentored a finalist in the 2014 Intel Science Talent Search, a science competition for high school seniors. She teaches at the Westwood High School, Austin, Texas.
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 2014-04-15Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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