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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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07081907552777698 4.7483e-08  
a 2.889253137325027 1.3215e-08 au
q 2.684638901173939 1.3531e-07 au
i .913252172386296 3.527e-06 deg
node 257.5626337490708 0.00028254 deg
peri 116.2933371105338 0.00028358 deg
M 264.9925993799343 2.4629e-05 deg
tp 2459073.903813935080
(2020-Aug-12.40381393)
0.00012343 TDB
period 1793.811554724661
4.91
1.2307e-05
3.369e-08
d
yr
n .2006899771895258 1.3769e-09 deg/d
Q 3.093867373476114 1.4151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2323  
   data-arc span      31547 days (86.37 yr)  
   first obs. used      1932-12-23  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46221  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:28:23  

Additional Information
 Earth MOID = 1.68431 au 
 Jupiter MOID = 2.2753 au 
 T_jup = 3.287 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455945.5 (2012-Jan-19.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07458247322304883 4.794e-08  
q 2.669740625878113 1.3778e-07 au
tp 2455487.917231410095
(2010-Oct-18.41723141)
0.00011193 TDB
node 257.7984001295821 0.00028437 deg
peri 115.6254472191552 0.00028527 deg
i .9095261413710611 3.5234e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2323  
   data-arc span      31547 days (86.37 yr)  
   first obs. used      1932-12-23  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46221  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:28:23  

Additional Information
 Jupiter MOID = 2.2753 au 
 T_jup = 3.287 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.298232944257396E-15 -6.581914815869141E-15 -5.877946970344335E-13 -5.701457420144848E-15 -1.866359122351391E-13 -1.377891243395613E-16
q -6.581914815869141E-15 1.898336211701215E-14 1.780502665946836E-12 2.088927485795454E-14 5.549505805835146E-13 4.390207878113119E-16
tp -5.877946970344335E-13 1.780502665946836E-12 1.252818281539231E-8 2.147194199900914E-11 2.560621908142402E-9 -7.767436277013009E-14
node -5.701457420144848E-15 2.088927485795454E-14 2.147194199900914E-11 8.086727557367682E-8 -8.085144095059528E-8 -2.176957646676214E-10
peri -1.866359122351391E-13 5.549505805835146E-13 2.560621908142402E-9 -8.085144095059528E-8 8.137793005153333E-8 2.176613481997615E-10
i -1.377891243395613E-16 4.390207878113119E-16 -7.767436277013009E-14 -2.176957646676214E-10 2.176613481997615E-10 1.241447488423709E-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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