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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017962836251808 1.7775e-08  
a 3.085273842904016 1.2057e-08 au
q 2.771204431730407 5.405e-08 au
i 2.128928252291752 3.3302e-07 deg
node 304.5897944694785 5.5784e-06 deg
peri 108.8999659626642 1.2465e-05 deg
M 38.65949491150717 1.0157e-05 deg
tp 2458987.934549472035
(2020-May-18.43454947)
5.5579e-05 TDB
period 1979.424779481275
5.42
1.1603e-05
3.177e-08
d
yr
n .1818710181522235 1.0661e-09 deg/d
Q 3.399343254077625 1.3284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3048  
   data-arc span      24308 days (66.55 yr)  
   first obs. used      1954-09-04  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42283  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:05:18  

Additional Information
 Earth MOID = 1.78257 au 
 Jupiter MOID = 1.92313 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 12.29   n/a E2021B10  
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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