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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2996718740331652 3.6067e-08  
a 2.364706092844378 8.1226e-09 au
q 1.656070186464059 8.6402e-08 au
i 4.388828305601289 3.57e-06 deg
node 269.3060092619597 5.1786e-05 deg
peri 88.77074730405866 5.2245e-05 deg
M 164.4304725733931 5.245e-06 deg
tp 2458393.841919551405
(2018-Oct-02.34191955)
1.9339e-05 TDB
period 1328.202160727923
3.64
6.8434e-06
1.874e-08
d
yr
n .2710430766071796 1.3965e-09 deg/d
Q 3.073341999224697 1.0557e-08 au
  Orbit Determination Parameters
   # obs. used (total)      914  
   data-arc span      11161 days (30.56 yr)  
   first obs. used      1989-09-27  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:49:38  

Additional Information
 Earth MOID = .65969 au 
 Jupiter MOID = 2.41093 au 
 T_jup = 3.483 
[ 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 15.8   n/a MPO469005  
rotation period rot_per 2.4172 h n/a LCDB (Rev. 2019-August); 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

[ show close-approach data ]
Alternate Designations
 1989 SR7 = 2000 UC98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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