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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1421065964080375 1.564e-08  
a 2.283490282264335 5.5541e-09 au
q 1.958991250320921 3.5947e-08 au
i 4.053171228352462 1.0361e-06 deg
node 63.41030017384785 9.1198e-06 deg
peri 269.0922226826746 1.1486e-05 deg
M 194.1701564150908 6.33e-06 deg
tp 2459977.073713931660
(2023-Feb-01.57371393)
2.2709e-05 TDB
period 1260.367449531971
3.45
4.5984e-06
1.259e-08
d
yr
n .2856309881167462 1.0421e-09 deg/d
Q 2.607989314207749 6.3434e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3077  
   data-arc span      23823 days (65.22 yr)  
   first obs. used      1956-03-16  
   last obs. used      2021-06-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4132  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:55:09  

Additional Information
 Earth MOID = .952938 au 
 Jupiter MOID = 2.72665 au 
 T_jup = 3.587 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457288.5 (2015-Sep-23.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1427892596401475 1.5652e-08  
q 1.956944067749449 3.5978e-08 au
tp 2457456.880176773603
(2016-Mar-09.38017677)
2.1643e-05 TDB
node 63.42768715865469 9.119e-06 deg
peri 269.1710386532009 1.1468e-05 deg
i 4.054347333083482 1.036e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3077  
   data-arc span      23823 days (65.22 yr)  
   first obs. used      1956-03-16  
   last obs. used      2021-06-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4132  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:55:09  

Additional Information
 Jupiter MOID = 2.72665 au 
 T_jup = 3.587 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.449768146375019E-16 -5.582012285629079E-16 -6.183159797089831E-15 -1.674779089529131E-14 3.873428837059619E-14 2.108915592769025E-17
q -5.582012285629079E-16 1.294407846603801E-15 3.082594296249013E-15 3.871758703102352E-14 -9.329959507203112E-14 -7.950681417666959E-17
tp -6.183159797089831E-15 3.082594296249013E-15 4.684105686557301E-10 -1.591984172313301E-11 1.496376134613767E-10 5.32944373740592E-12
node -1.674779089529131E-14 3.871758703102352E-14 -1.591984172313301E-11 8.315628880920155E-11 -8.676187650145855E-11 2.403289434843896E-12
peri 3.873428837059619E-14 -9.329959507203112E-14 1.496376134613767E-10 -8.676187650145855E-11 1.315184367931178E-10 -9.228577044179925E-13
i 2.108915592769025E-17 -7.950681417666959E-17 5.32944373740592E-12 2.403289434843896E-12 -9.228577044179925E-13 1.073398662017387E-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 13.53   n/a MPO614063  
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. 2020-October); 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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