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1897 Hind (1971 UE1)
Classification: Main-belt Asteroid          SPK-ID: 2001897
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1420216483022068 3.1683e-08  
a 2.283255509017372 6.1082e-09 au
q 1.95898379813163 7.321e-08 au
i 4.053619304116821 3.0599e-06 deg
node 63.420076318673 4.8389e-05 deg
peri 268.9843963253369 4.9743e-05 deg
M 81.1811001882072 1.0603e-05 deg
tp 2458716.327119123376
(2019-Aug-20.82711912)
3.7298e-05 TDB
period 1260.173080660535
3.45
5.0569e-06
1.385e-08
d
yr
n .2856750437894624 1.1464e-09 deg/d
Q 2.607527219903113 6.9757e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2622  
   data-arc span      23604 days (64.62 yr)  
   first obs. used      1956-03-16  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42638  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:14:29  

Additional Information
 Earth MOID = .953658 au 
 Jupiter MOID = 2.72772 au 
 T_jup = 3.587 
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Orbital Elements at Epoch 2456915.5 (2014-Sep-15.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1425687427924666 3.167e-08  
q 1.957501950518842 7.3224e-08 au
tp 2457457.042492256206
(2016-Mar-09.54249226)
3.8324e-05 TDB
node 63.43166182293243 4.8391e-05 deg
peri 269.1839672552766 4.9735e-05 deg
i 4.054312087205919 3.06e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2622  
   data-arc span      23604 days (64.62 yr)  
   first obs. used      1956-03-16  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42638  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:14:29  

Additional Information
 Jupiter MOID = 2.72772 au 
 T_jup = 3.587 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.002975871793013E-15 -2.313038492943353E-15 1.542271328292153E-13 5.120143925680939E-15 3.743119417655792E-14 -1.589922620687117E-15
q -2.313038492943353E-15 5.36168343260615E-15 -4.163995384195102E-13 -1.157663331234569E-14 -1.08014523048996E-13 3.702409364946953E-15
tp 1.542271328292153E-13 -4.163995384195102E-13 1.468713585603785E-9 4.44635510812616E-12 4.498094198536732E-10 -3.121336395288352E-13
node 5.120143925680939E-15 -1.157663331234569E-14 4.44635510812616E-12 2.341702587925761E-9 -2.334377254773131E-9 -1.297426917776992E-11
peri 3.743119417655792E-14 -1.08014523048996E-13 4.498094198536732E-10 -2.334377254773131E-9 2.473523085813027E-9 1.286561549197977E-11
i -1.589922620687117E-15 3.702409364946953E-15 -3.121336395288352E-13 -1.297426917776992E-11 1.286561549197977E-11 9.363367770465243E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO435714  
diameter diameter 5.007 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.6336 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Hills, K. (2013) Minor Planet Bull. 40, 12-13.]
geometric albedo albedo 0.307   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1897 Hind (1971 UE1)          Discovered 1971-Oct-26 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1971 UE1 = 1957 SG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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