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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1015619165139237 3.6254e-08  
a 3.08449138716569 1.4476e-08 au
q 2.771224530414451 1.1594e-07 au
i 2.128958183283555 3.5362e-06 deg
node 304.5892948921505 0.00011705 deg
peri 108.8917450894752 0.0001188 deg
M 2.295400395335792 1.9712e-05 deg
tp 2458987.883766419202
(2020-May-18.38376642)
0.00010833 TDB
period 1978.671824887859
5.42
1.393e-05
3.814e-08
d
yr
n .1819402265054251 1.2809e-09 deg/d
Q 3.397758243916928 1.5947e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2545  
   data-arc span      23908 days (65.46 yr)  
   first obs. used      1954-09-04  
   last obs. used      2020-02-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:56:01  

Additional Information
 Earth MOID = 1.78338 au 
 Jupiter MOID = 1.92413 au 
 T_jup = 3.218 
[ 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 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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