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120459 (1990 SQ6)
Classification: Main-belt Asteroid          SPK-ID: 2120459
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1951080516677264 4.7677e-08  
a 2.38572582896648 1.3943e-08 au
q 1.920251510663459 1.1334e-07 au
i 4.429076083057605 4.9365e-06 deg
node 144.9022077774699 6.6995e-05 deg
peri 203.4944704575785 6.8135e-05 deg
M 83.6123155314162 1.555e-05 deg
tp 2458887.894240266927
(2020-Feb-08.39424027)		 5.6241e-05 TDB
period 1345.950925873135
3.69		 1.1799e-05
3.23e-08		 d
yr
n .2674688898976488 2.3448e-09 deg/d
Q 2.851200147269501 1.6664e-08 au
   Orbit Determination Parameters
   # obs. used (total)      372  
   data-arc span      11070 days (30.31 yr)  
   first obs. used      1990-09-15  
   last obs. used      2021-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56924  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:04  

Additional Information
 Earth MOID = .912699 au 
 Jupiter MOID = 2.5702 au 
 T_jup = 3.505 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO475058  
diameter diameter 2.768 km 0.825 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120459 (1990 SQ6)          Discovered 1990-Sep-22 by Elst, E. W. at La Silla
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1990 SQ6 = 2001 QN215 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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