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120478 (1992 QS)
Classification: Main-belt Asteroid          SPK-ID: 2120478
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2291336865399741 6.4497e-08  
a 2.459749261246553 1.4592e-08 au
q 1.896137845053153 1.5941e-07 au
i 14.90638915422299 6.7589e-06 deg
node 353.0922585683963 1.2681e-05 deg
peri 7.50193631491273 1.6886e-05 deg
M 110.3961390195525 7.9871e-06 deg
tp 2458768.398206403027
(2019-Oct-11.89820640)
3.2273e-05 TDB
period 1409.076866966872
3.86
1.2539e-05
3.433e-08
d
yr
n .2554864169865501 2.2734e-09 deg/d
Q 3.023360677439954 1.7935e-08 au
  Orbit Determination Parameters
   # obs. used (total)      767  
   data-arc span      10375 days (28.41 yr)  
   first obs. used      1992-08-29  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:07  

Additional Information
 Earth MOID = .891716 au 
 Jupiter MOID = 2.43265 au 
 T_jup = 3.409 
[ 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 15.50   n/a E2021B55  
diameter diameter 2.421 km 0.648 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.209   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

120478 (1992 QS)          Discovered 1992-Aug-29 by Helin, E. F. at Palomar
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1992 QS = 2000 RJ37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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