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7335 (1989 JA)
Classification: Apollo [NEO, PHA]          SPK-ID: 2007335
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4841151591083807 8.7447e-08  
a 1.77127697633648 1.5252e-08 AU
q .9137749411123338 1.4972e-07 AU
i 15.19726297373783 1.3239e-05 deg
node 61.38457930050568 3.4329e-05 deg
peri 232.180268376119 4.8457e-05 deg
M 199.9153015868786 6.1923e-05 deg
tp 2457183.391270127879
(2015-Jun-09.89127013)
0.00015296 JED
period 861.0495482230193
2.36
1.1121e-05
3.045e-08
d
yr
n .4180944066958118 5.4e-09 deg/d
Q 2.628779011560627 2.2635e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      219  
   # delay obs. used      0  
   # Doppler obs. used      5  
   data-arc span      7710 days (21.11 yr)  
   first obs. used      1989-04-06  
   last obs. used      2010-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .68083  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:57:22  

Additional Information
 Earth MOID = .0219517 AU 
 T_jup = 3.923 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0 mag n/a PDS3 (MPC 28570)  
diameter diameter 1.8 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed medium albedo (0.15)
rotation period rot_per 12. h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) upper-limit; Incomplete or inconclusive result.
Published Reference List:
[Mahapatra, P.R.; Benner, L.A.M.; Ostro, S.J.; Jurgens, R.F.; et al. (2002) Planetary and Space Sci. 50, 257-260.]

7335 (1989 JA)          Discovered 1989-May-01 by Helin, E. F. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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