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19513 (1998 QN7)
Classification: Outer Main-belt Asteroid          SPK-ID: 2019513
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1239063257003174 2.2584e-08  
a 3.38602772452731 2.5497e-08 au
q 2.966477470461725 8.3087e-08 au
i 17.18029602936978 8.8265e-07 deg
node 323.1609240937794 3.4767e-06 deg
peri 352.6209749779777 8.7694e-06 deg
M 200.2280913557629 8.0937e-06 deg
tp 2460210.524978033604
(2023-Sep-23.02497803)
5.4312e-05 TDB
period 2275.800515732356
6.23
2.5705e-05
7.038e-08
d
yr
n .158186096501587 1.7867e-09 deg/d
Q 3.805577978592896 2.8656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1772  
   data-arc span      9129 days (24.99 yr)  
   first obs. used      1996-03-17  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47278  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:56:12  

Additional Information
 Earth MOID = 1.95209 au 
 Jupiter MOID = 1.53261 au 
 T_jup = 3.066 
[ 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 12.56   n/a E2021B10  
diameter diameter 16.207 km 0.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19513 (1998 QN7)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QN7 = 1996 FO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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