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JPL Small-Body Database Browser
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3584 Aisha (1981 TW)
Classification: Main-belt Asteroid          SPK-ID: 2003584
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012320183078792 4.2719e-08  
a 3.083453276811981 1.6515e-08 au
q 2.77130907824226 1.317e-07 au
i 2.128987089312108 3.9919e-06 deg
node 304.5940285054538 0.00012163 deg
peri 108.9436870069128 0.00012331 deg
M 289.4305402980266 2.067e-05 deg
tp 2458988.175875624958
(2020-May-18.67587563)
0.00011422 TDB
period 1977.673002094448
5.41
1.5889e-05
4.35e-08
d
yr
n .1820321153288452 1.4625e-09 deg/d
Q 3.395597475381702 1.8187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2209  
   data-arc span      23719 days (64.94 yr)  
   first obs. used      1954-09-04  
   last obs. used      2019-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46822  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:32:19  

Additional Information
 Earth MOID = 1.78304 au 
 Jupiter MOID = 1.92597 au 
 T_jup = 3.218 
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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 12.2   n/a MPO332851  
diameter diameter 27.696 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3584 Aisha (1981 TW)          Discovered 1981-Oct-05 by Thomas, N. G. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 TW = 1954 RS = 1965 UY = 1978 EX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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