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100985 (1998 QW30)
Classification: Main-belt Asteroid          SPK-ID: 2100985
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2405309316049234 3.3052e-08  
a 3.077337148254061 1.9377e-08 au
q 2.337142377122074 9.9009e-08 au
i 2.506392954284303 3.6103e-06 deg
node 176.3014492164662 9.3726e-05 deg
peri 139.5554487065148 9.4088e-05 deg
M 61.46723143662025 8.2376e-06 deg
tp 2458863.831721962679
(2020-Jan-15.33172196)
4.3879e-05 TDB
period 1971.791754089447
5.40
1.8624e-05
5.099e-08
d
yr
n .1825750611104692 1.7244e-09 deg/d
Q 3.817531919386048 2.4038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      641  
   data-arc span      8182 days (22.40 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53058  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:42  

Additional Information
 Earth MOID = 1.32233 au 
 Jupiter MOID = 1.50824 au 
 T_jup = 3.182 
[ 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 15.35   n/a E2021B55  

100985 (1998 QW30)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QW30 = 2003 NT5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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