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JPL Small-Body Database Browser
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1894 Haffner (1971 UH)
Classification: Main-belt Asteroid          SPK-ID: 2001894
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0708190582519005 4.2799e-08  
a 2.8892531348295 1.2499e-08 au
q 2.684638948769523 1.2332e-07 au
i .9132515095847344 3.448e-06 deg
node 257.5626153313193 0.00027178 deg
peri 116.2933610304853 0.00027285 deg
M 264.9925956560782 2.4471e-05 deg
tp 2459073.903831877009
(2020-Aug-12.40383188)
0.0001226 TDB
period 1793.811552400615
4.91
1.164e-05
3.187e-08
d
yr
n .2006899774495379 1.3023e-09 deg/d
Q 3.093867320889476 1.3384e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2446  
   data-arc span      31740 days (86.90 yr)  
   first obs. used      1932-12-23  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45672  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:07:29  

Additional Information
 Earth MOID = 1.68431 au 
 Jupiter MOID = 2.2753 au 
 T_jup = 3.287 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456052.5 (2012-May-05.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07449595219113236 4.3205e-08  
q 2.669997023429077 1.254e-07 au
tp 2455487.802153886025
(2010-Oct-18.30215389)
0.00011146 TDB
node 257.799056062661 0.00027351 deg
peri 115.6123061523586 0.00027444 deg
i .9095328369087208 3.4447e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2446  
   data-arc span      31740 days (86.90 yr)  
   first obs. used      1932-12-23  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45672  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:07:29  

Additional Information
 Jupiter MOID = 2.2753 au 
 T_jup = 3.287 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.866641065069382E-15 -5.396506042368273E-15 -5.458103361065524E-13 -5.656593917046393E-15 -1.572118541411182E-13 -1.071491574656245E-16
q -5.396506042368273E-15 1.572507057109193E-14 1.656794253096989E-12 2.084034155158343E-14 4.721478779126173E-13 3.528691215637909E-16
tp -5.458103361065524E-13 1.656794253096989E-12 1.242411711400769E-8 1.749757590789983E-11 2.539779291358984E-9 -4.412718625874518E-14
node -5.656593917046393E-15 2.084034155158343E-14 1.749757590789983E-11 7.481008510398074E-8 -7.479585700372344E-8 -1.694066995288503E-10
peri -1.572118541411182E-13 4.721478779126173E-13 2.539779291358984E-9 -7.479585700372344E-8 7.531708432341094E-8 1.693839299982896E-10
i -1.071491574656245E-16 3.528691215637909E-16 -4.412718625874518E-14 -1.694066995288503E-10 1.693839299982896E-10 1.186586022511181E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0   n/a MPO265967  
diameter diameter 10.826 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.305   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1894 Haffner (1971 UH)          Discovered 1971-Oct-26 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1971 UH = 1932 YG = 1961 TH = 1961 TP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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