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146644 (2001 UA76)
Classification: Main-belt Asteroid          SPK-ID: 2146644
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309346885474863 4.282e-08  
a 2.771597920211983 1.8544e-08 au
q 2.408699609750167 1.1966e-07 au
i 15.14047150292707 5.8561e-06 deg
node 59.19014546925057 1.9757e-05 deg
peri 58.00876016816819 3.2184e-05 deg
M 314.8827503042605 2.5535e-05 deg
tp 2459211.719438545574
(2020-Dec-28.21943855)
0.0001205 TDB
period 1685.364209680249
4.61
1.6915e-05
4.631e-08
d
yr
n .2136036815854182 2.1438e-09 deg/d
Q 3.1344962306738 2.0972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      6626 days (18.14 yr)  
   first obs. used      2001-09-10  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58384  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 17:06:23  

Additional Information
 Earth MOID = 1.46092 au 
 Jupiter MOID = 2.17536 au 
 T_jup = 3.274 
[ 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 14.7   n/a MPO493834  
diameter diameter 3.793 km 0.821 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.213   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146644 (2001 UA76)          Discovered 2001-Oct-17 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1955-Sep-04 21:37 < 00:01 Psych 0.0194445273602592 0.0194429780783269 0.0194460818993691 6.28389122290705 6.28389112388609 2435355.400887043 0.622983896448188 733.609805994587 55.9303827340978 -85.8095652323016 51849.3230739828 T 13 CATAB v2.0f-lin.ifort 2019-Nov-07 17:06:38 2019-Nov-07 17:06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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