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4406 Mahler (1987 YD1)
Classification: Main-belt Asteroid          SPK-ID: 2004406
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1297836920848906 2.3134e-08  
a 3.151494283261743 1.6769e-08 au
q 2.742481719595608 7.9794e-08 au
i 1.90420914892945 9.1229e-07 deg
node 100.59626608 2.9781e-05 deg
peri 90.15413656945167 3.0972e-05 deg
M 232.904899772849 9.9387e-06 deg
tp 2459921.938839802513
(2022-Dec-08.43883980)
5.9435e-05 TDB
period 2043.493272869869
5.59
1.631e-05
4.465e-08
d
yr
n .1761689185765795 1.4061e-09 deg/d
Q 3.560506846927877 1.8945e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2123  
   data-arc span      32094 days (87.87 yr)  
   first obs. used      1933-04-24  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47996  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:18:57  

Additional Information
 Earth MOID = 1.74287 au 
 Jupiter MOID = 1.39393 au 
 T_jup = 3.194 
[ 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 12.99   n/a E2021B10  
diameter diameter 13.058 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4406 Mahler (1987 YD1)          Discovered 1987-Dec-22 by Borngen, F. at Tautenburg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1987 YD1 = 1933 HF = 1978 GA5 = 1978 JJ3 = 1979 OD4 = 1983 CS5 = 1989 FN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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