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43995 (1997 PY5)
Classification: Main-belt Asteroid          SPK-ID: 2043995
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07508851547052273 3.52e-08  
a 2.173607419939295 6.2219e-09 au
q 2.01039446556034 7.6305e-08 au
i 2.200378623931258 3.1253e-06 deg
node 254.0948835035838 0.00011388 deg
peri 219.5385653169208 0.00011698 deg
M 344.0882755813678 2.6572e-05 deg
tp 2459252.235045631661
(2021-Feb-06.73504563)
8.6427e-05 TDB
period 1170.496417446052
3.20
5.0258e-06
1.376e-08
d
yr
n .3075618127781177 1.3206e-09 deg/d
Q 2.336820374318249 6.6891e-09 au
  Orbit Determination Parameters
   # obs. used (total)      883  
   data-arc span      10669 days (29.21 yr)  
   first obs. used      1992-01-01  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53798  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:28:13  

Additional Information
 Earth MOID = 1.02737 au 
 Jupiter MOID = 2.71654 au 
 T_jup = 3.682 
[ 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 16.5   n/a MPO436086  
diameter diameter 3.524 km 0.219 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43995 (1997 PY5)          Discovered 1997-Aug-14 by AMOS at Haleakala
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 PY5 = 2000 QA41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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