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JPL Small-Body Database Browser
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4281 Pounds (1985 TE1)
Classification: Main-belt Asteroid          SPK-ID: 2004281
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1103864992050843 3.8424e-08  
a 2.46503743179126 8.9163e-09 au
q 2.192930579286331 9.4278e-08 au
i .7297917523388112 4.2791e-06 deg
node 187.9213284949039 0.00024174 deg
peri 209.1256171985004 0.00024238 deg
M 229.8040583252089 1.5537e-05 deg
tp 2459111.744502366579
(2020-Sep-19.24450237)
6.0739e-05 TDB
period 1413.623331760149
3.87
7.6698e-06
2.1e-08
d
yr
n .25466472709654 1.3817e-09 deg/d
Q 2.737144284296189 9.9005e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2071  
   data-arc span      15319 days (41.94 yr)  
   first obs. used      1977-09-08  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:45:19  

Additional Information
 Earth MOID = 1.19938 au 
 Jupiter MOID = 2.63879 au 
 T_jup = 3.479 
[ 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 13.8   n/a MPO302089  
diameter diameter 9.680 km 0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4281 Pounds (1985 TE1)          Discovered 1985-Oct-15 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1985 TE1 = 1981 SW4 = 1981 UT18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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