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79530 (1998 QD4)
Classification: Main-belt Asteroid          SPK-ID: 2079530
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1283874520957885 3.623e-08  
a 2.272989304300187 7.0645e-09 au
q 1.981165998880107 8.1442e-08 au
i 6.05379053698532 4.5402e-06 deg
node 47.92221638045732 3.0532e-05 deg
peri 294.715130119033 3.556e-05 deg
M 123.3315047617488 1.9736e-05 deg
tp 2458571.688874462937
(2019-Mar-29.18887446)
6.7474e-05 TDB
period 1251.683464752641
3.43
5.8354e-06
1.598e-08
d
yr
n .2876126513911754 1.3409e-09 deg/d
Q 2.564812609720266 7.9715e-09 au
  Orbit Determination Parameters
   # obs. used (total)      899  
   data-arc span      9863 days (27.00 yr)  
   first obs. used      1993-01-22  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53269  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:43:01  

Additional Information
 Earth MOID = .982837 au 
 Jupiter MOID = 2.81482 au 
 T_jup = 3.593 
[ 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 15.9   n/a MPO257360  
rotation period rot_per 24.51 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Galad, A. (2010) Astron. Astrophys. 514, A55.]

79530 (1998 QD4)          Discovered 1998-Aug-17 by Broughton, J. at Reedy Creek
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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