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8761 Crane (1163 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2008761
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09062827494432159 3.1452e-08  
a 2.242063671424822 6.1009e-09 au
q 2.038869308568259 6.9632e-08 au
i 3.160879554836607 3.515e-06 deg
node 250.2671997758377 6.9606e-05 deg
peri 5.148818807206546 7.3215e-05 deg
M 173.1658920429036 2.2768e-05 deg
tp 2458410.665470188678
(2018-Oct-19.16547019)
7.7502e-05 TDB
period 1226.225489483035
3.36
5.005e-06
1.37e-08
d
yr
n .2935838498609032 1.1983e-09 deg/d
Q 2.445258034281387 6.6538e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2351  
   data-arc span      18119 days (49.61 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46188  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:18:36  

Additional Information
 Earth MOID = 1.02403 au 
 Jupiter MOID = 2.58075 au 
 T_jup = 3.626 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456857.5 (2014-Jul-19.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09047127857385907 3.1414e-08  
q 2.03940286169502 6.9459e-08 au
tp 2457184.978039051840
(2015-Jun-11.47803905)
7.7968e-05 TDB
node 250.3002627194347 6.9646e-05 deg
peri 5.222971238442732 7.3282e-05 deg
i 3.159592032217787 3.5147e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2351  
   data-arc span      18119 days (49.61 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46188  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:18:36  

Additional Information
 Jupiter MOID = 2.58075 au 
 T_jup = 3.626 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.868126772190031E-16 -2.175177267794954E-15 -6.909663052734573E-13 3.343195386778339E-15 -2.313495593209868E-13 2.051152067878263E-16
q -2.175177267794954E-15 4.824500671586665E-15 1.520454918395239E-12 -7.408427906063197E-15 5.06063604190254E-13 -4.357811687270092E-16
tp -6.909663052734573E-13 1.520454918395239E-12 6.078934067119915E-9 -3.931420121845408E-12 1.790253541459506E-9 -1.350158207324548E-12
node 3.343195386778339E-15 -7.408427906063197E-15 -3.931420121845408E-12 4.850554204854663E-9 -4.844221009160661E-9 -7.997777561255314E-11
peri -2.313495593209868E-13 5.06063604190254E-13 1.790253541459506E-9 -4.844221009160661E-9 5.370288174528161E-9 7.946863420882372E-11
i 2.051152067878263E-16 -4.357811687270092E-16 -1.350158207324548E-12 -7.997777561255314E-11 7.946863420882372E-11 1.235292470145893E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO384834  

8761 Crane           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named for the bird Grus grus; Crane is its English name. It belongs to the family of the Gruidae and is an endangered species in Europe.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

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