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3440 Stampfer (1950 DD)
Classification: Main-belt Asteroid          SPK-ID: 2003440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05556419985809971 1.1008e-08  
a 2.80316188741757 1.059e-08 au
q 2.647406440070492 3.4987e-08 au
i 7.54246092170983 8.8698e-07 deg
node 171.1241635835354 6.178e-06 deg
peri 145.5256946927826 2.4671e-05 deg
M 264.3725039056295 2.6724e-05 deg
tp 2459851.855912614390
(2022-Sep-29.35591261)
0.00012767 TDB
period 1714.236336162219
4.69
9.7145e-06
2.66e-08
d
yr
n .2100060489943628 1.1901e-09 deg/d
Q 2.958917334764648 1.1179e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2939  
   data-arc span      32155 days (88.04 yr)  
   first obs. used      1933-07-24  
   last obs. used      2021-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 09:39:55  

Additional Information
 Earth MOID = 1.63791 au 
 Jupiter MOID = 2.21957 au 
 T_jup = 3.309 
[ 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 12.67   n/a MPO636115  
diameter diameter 10.588 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.173   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3440 Stampfer (1950 DD)          Discovered 1950-Feb-17 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1950 DD = 1933 OH = 1979 HQ4 = 1980 RD3 = 1985 RX3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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