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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07033101567990251 4.2318e-08  
a 2.88601589010149 1.2043e-08 au
q 2.683039461282314 1.2225e-07 au
i .9135176893998582 3.4421e-06 deg
node 257.5655470383737 0.00027088 deg
peri 117.1134004490599 0.00027198 deg
M 344.5166365082992 2.4858e-05 deg
tp 2459077.521028299527
(2020-Aug-16.02102830)
0.00012376 TDB
period 1790.797600449783
4.90
1.1209e-05
3.069e-08
d
yr
n .2010277431182514 1.2583e-09 deg/d
Q 3.088992318920665 1.289e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2477  
   data-arc span      31934 days (87.43 yr)  
   first obs. used      1932-12-23  
   last obs. used      2020-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45388  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:38:16  

Additional Information
 Earth MOID = 1.68377 au 
 Jupiter MOID = 2.2754 au 
 T_jup = 3.289 
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Orbital Elements at Epoch 2456070.5 (2012-May-23.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07448567351214028 4.2918e-08  
q 2.670032619451399 1.2466e-07 au
tp 2455487.785472851318
(2010-Oct-18.28547285)
0.00011135 TDB
node 257.7991510404003 0.00027251 deg
peri 115.6104380742779 0.00027344 deg
i .909526319719495 3.4397e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2477  
   data-arc span      31934 days (87.43 yr)  
   first obs. used      1932-12-23  
   last obs. used      2020-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45388  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:38:16  

Additional Information
 Jupiter MOID = 2.2754 au 
 T_jup = 3.289 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.84196080250359E-15 -5.328806105105004E-15 -5.382510026507112E-13 -5.707288302572627E-15 -1.543747688452428E-13 -1.052623546012174E-16
q -5.328806105105004E-15 1.553907596446216E-14 1.634729513843883E-12 2.099640371700269E-14 4.641174381404371E-13 3.469364928187154E-16
tp -5.382510026507112E-13 1.634729513843883E-12 1.239884696555351E-8 1.786855836746801E-11 2.533902693023494E-9 -4.622196748063138E-14
node -5.707288302572627E-15 2.099640371700269E-14 1.786855836746801E-11 7.4263137045094E-8 -7.424890316522754E-8 -1.672146132071918E-10
peri -1.543747688452428E-13 4.641174381404371E-13 2.533902693023494E-9 -7.424890316522754E-8 7.476886651526772E-8 1.671915766147165E-10
i -1.052623546012174E-16 3.469364928187154E-16 -4.622196748063138E-14 -1.672146132071918E-10 1.671915766147165E-10 1.183157011624598E-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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