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243611 (1999 AS1)
Classification: Main-belt Asteroid          SPK-ID: 2243611
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1402096129749277 4.6313e-08  
a 2.635923641279085 2.2134e-08 au
q 2.266341807703883 1.2539e-07 au
i 10.8652503501125 7.5445e-06 deg
node 299.4913889156304 2.3943e-05 deg
peri 78.84750076497549 4.1058e-05 deg
M 83.03788699328234 3.1237e-05 deg
tp 2458639.945057355333
(2019-Jun-05.44505736)
0.00013433 TDB
period 1563.139237425211
4.28
1.9688e-05
5.39e-08
d
yr
n .2303057791531027 2.9008e-09 deg/d
Q 3.005505474854288 2.5237e-08 au
  Orbit Determination Parameters
   # obs. used (total)      354  
   data-arc span      7665 days (20.99 yr)  
   first obs. used      1999-01-08  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52418  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 02:52:33  

Additional Information
 Earth MOID = 1.2973 au 
 Jupiter MOID = 2.56673 au 
 T_jup = 3.358 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO454788  
diameter diameter 3.407 km 0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243611 (1999 AS1)          Discovered 1999-Jan-08 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

Alternate Designations
 1999 AS1 = 2006 US240 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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