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175905 (1999 YD23)
Classification: Main-belt Asteroid          SPK-ID: 2175905
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2309954088800878 1.8428e-07  
a 2.530312920423972 1.6212e-08 au
q 1.945822252776068 4.7673e-07 au
i 7.099896342259524 7.9647e-06 deg
node 90.19897722104112 6.8148e-05 deg
peri 350.9474503242876 8.5165e-05 deg
M 73.02610834059642 4.4229e-05 deg
tp 2458902.280915320379
(2020-Feb-22.78091532)
0.00017818 TDB
period 1470.143664015861
4.03
1.4129e-05
3.868e-08
d
yr
n .2448740274924016 2.3534e-09 deg/d
Q 3.114803588071877 1.9957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      528  
   data-arc span      7427 days (20.33 yr)  
   first obs. used      1999-11-04  
   last obs. used      2020-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61776  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:07:18  

Additional Information
 Earth MOID = .961706 au 
 Jupiter MOID = 2.13971 au 
 T_jup = 3.403 
[ 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 16.70   n/a E2021B55  
diameter diameter 2.692 km 0.629 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.051   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

175905 (1999 YD23)          Discovered 1999-Dec-31 by CSS at Catalina
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

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