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175746 (1998 QJ61)
Classification: Main-belt Asteroid          SPK-ID: 2175746
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3087537125367691 1.3134e-07  
a 2.54442861401567 2.7445e-08 au
q 1.758826833153546 3.2417e-07 au
i 17.93727281889414 1.966e-05 deg
node 325.5122413486337 2.7488e-05 deg
peri 38.19790510485047 4.6698e-05 deg
M 161.5394384315719 4.2778e-05 deg
tp 2458535.288266170943
(2019-Feb-20.78826617)		 0.00016947 TDB
period 1482.462898866041
4.06		 2.3986e-05
6.567e-08		 d
yr
n .2428391295831887 3.929e-09 deg/d
Q 3.330030394877795 3.5919e-08 au
   Orbit Determination Parameters
   # obs. used (total)      155  
   data-arc span      10731 days (29.38 yr)  
   first obs. used      1990-09-14  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .592  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:41:21  

Additional Information
 Earth MOID = .781908 au 
 Jupiter MOID = 2.23584 au 
 T_jup = 3.311 
[ 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 16.6   n/a MPO502970  

175746 (1998 QJ61)          Discovered 1998-Aug-23 by LONEOS at Anderson Mesa
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

[ show close-approach data ]
Alternate Designations
 1998 QJ61 = 1994 PL15 = 2002 RG7 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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