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100015 (1989 SR7)
Classification: Mars-crossing Asteroid          SPK-ID: 2100015
[ 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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3000191158638597 3.3714e-08  
a 2.364119722518291 7.8579e-09 au
q 1.654838613572041 8.1393e-08 au
i 4.38905800255101 3.3125e-06 deg
node 269.2964059452872 4.7951e-05 deg
peri 88.79458770101857 4.827e-05 deg
M 271.7822112138546 4.9512e-06 deg
tp 2459721.854106821701
(2022-May-22.35410682)		 1.8822e-05 TDB
period 1327.708164843588
3.64		 6.6196e-06
1.812e-08		 d
yr
n .2711439226875661 1.3518e-09 deg/d
Q 3.073400831464542 1.0215e-08 au
   Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      11577 days (31.70 yr)  
   first obs. used      1989-09-27  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47572  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:59:11  

Additional Information
 Earth MOID = .657657 au 
 Jupiter MOID = 2.41227 au 
 T_jup = 3.483 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO469005  
rotation period rot_per 2.4172 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Benishek, V.; Pravec, P.; Hornoch, K.; Kusnirak, P.; et al. (2018) CBET 4565.]

100015 (1989 SR7)          Discovered 1989-Sep-28 by Shoemaker, C. S. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1989 SR7 = 2000 UC98 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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