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24685 (1990 FQ)
Classification: Main-belt Asteroid          SPK-ID: 2024685
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2329960831099479 1.0336e-07  
a 2.543398403183303 1.4379e-08 au
q 1.950796537453497 2.6849e-07 au
i 13.42438761648675 5.384e-06 deg
node 85.54714120317473 2.5955e-05 deg
peri 58.21370074289822 2.8146e-05 deg
M 227.2952787776279 1.7276e-05 deg
tp 2459746.639881209687
(2022-Jun-16.13988121)
7.5057e-05 TDB
period 1481.562640910334
4.06
1.2564e-05
3.44e-08
d
yr
n .2429866885539182 2.0605e-09 deg/d
Q 3.136000268913108 1.7729e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1005  
   data-arc span      11207 days (30.68 yr)  
   first obs. used      1990-03-23  
   last obs. used      2020-11-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46448  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:46:58  

Additional Information
 Earth MOID = .999805 au 
 Jupiter MOID = 2.03274 au 
 T_jup = 3.368 
[ 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 14.17   n/a E2021B10  
diameter diameter 8.630 km 0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24685 (1990 FQ)          Discovered 1990-Mar-23 by Helin, E. F. at Palomar
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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