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7959 Alysecherri (1994 PK)
Classification: Inner Main-belt Asteroid          SPK-ID: 2007959
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08551902402974626 3.6513e-08  
a 1.942888654945562 5.6555e-09 au
q 1.776734713376151 7.0703e-08 au
i 19.26347697874468 5.3488e-06 deg
node 235.7826823524054 1.152e-05 deg
peri 100.5433988819975 3.4695e-05 deg
M 173.260256772148 3.4608e-05 deg
tp 2458524.434457740585
(2019-Feb-09.93445774)
9.4466e-05 TDB
period 989.168539896449
2.71
4.319e-06
1.182e-08
d
yr
n .3639420235076285 1.5891e-09 deg/d
Q 2.109042596514973 6.1392e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1408  
   data-arc span      24987 days (68.41 yr)  
   first obs. used      1951-12-01  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45193  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:24:21  

Additional Information
 Earth MOID = .860151 au 
 Jupiter MOID = 3.11379 au 
 T_jup = 3.828 
[ 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 14.6   n/a MPO452281  
rotation period rot_per 3.540 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2017) Minor Planet Bull. 44, 12-19.]

7959 Alysecherri           Discovered 1994 Aug. 2 by C. W. Hergenrother at the Catalina Station.
Alyse Cherri Hergenrother (b. 1984), maiden name Alyse Cherri Smith, is the wife of the discoverer. She has worked for the state of Arizona to prevent the abuse and neglect of Arizona's children.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20081113/MPCPages.arcLast Updated: 2008-11-17

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