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146435 (2001 QU278)
Classification: Main-belt Asteroid          SPK-ID: 2146435
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1423320926874235 4.4437e-08  
a 2.679043716740143 1.5236e-08 au
q 2.297729818135425 1.182e-07 au
i 13.6027632356996 4.0491e-06 deg
node 115.1450644438769 2.0908e-05 deg
peri 281.6405279833609 2.6035e-05 deg
M 51.76342745735353 1.3865e-05 deg
tp 2458770.202803164510
(2019-Oct-13.70280316)
6.2026e-05 TDB
period 1601.651879197554
4.39
1.3663e-05
3.741e-08
d
yr
n .2247679440680732 1.9174e-09 deg/d
Q 3.06035761534486 1.7405e-08 au
  Orbit Determination Parameters
   # obs. used (total)      642  
   data-arc span      6739 days (18.45 yr)  
   first obs. used      2001-08-17  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:37:24  

Additional Information
 Earth MOID = 1.35141 au 
 Jupiter MOID = 2.40541 au 
 T_jup = 3.323 
[ 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 15.3   n/a MPO502886  
diameter diameter 4.989 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146435 (2001 QU278)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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