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9172 Abhramu (1989 OB)
Classification: Amor [NEO]          SPK-ID: 2009172
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 84 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5528539292537114 5.17e-08  
a 2.708058769627986 4.4988e-09 au
q 1.210897838189183 1.3969e-07 au
i 7.845140461534326 8.1474e-06 deg
node 287.6641075632799 4.9955e-05 deg
peri 74.00590423580029 5.0722e-05 deg
M 9.166055815948839 6.0387e-06 deg
tp 2459159.055629145591
(2020-Nov-05.55562915)
2.7232e-05 TDB
period 1627.741943446003
4.46
4.0562e-06
1.111e-08
d
yr
n .2211652783474165 5.5112e-10 deg/d
Q 4.205219701066788 6.986e-09 au
  Orbit Determination Parameters
   # obs. used (total)      382  
   data-arc span      11593 days (31.74 yr)  
   first obs. used      1989-07-07  
   last obs. used      2021-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62633  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:12:10  

Additional Information
 Earth MOID = .25029 au 
 Jupiter MOID = 1.451 au 
 T_jup = 3.112 
[ show covariance matrix ]

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 16.56   n/a MPCxxxxx  

9172 Abhramu           Discovered 1989 July 29 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Abhramu, the "cloud-knitter", was the original female elephant who was a supernatural winged being who could change her shape at will, like the clouds that resemble her children. According to Indian legend, Abhramu's tribe lost its wings and magic by mischance.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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