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185833 (2000 AL221)
Classification: Main-belt Asteroid          SPK-ID: 2185833
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2323510915774099 8.7375e-08  
a 2.361349417321123 1.5777e-08 au
q 1.812687302610879 2.0506e-07 au
i 1.975725653740889 8.1685e-06 deg
node 342.1664906836178 0.00017419 deg
peri 7.564604356497855 0.00017484 deg
M 323.7267403071801 2.2919e-05 deg
tp 2459134.043543308941
(2020-Oct-11.54354331)
8.54e-05 TDB
period 1325.37511098665
3.63
1.3283e-05
3.637e-08
d
yr
n .2716212165263952 2.7222e-09 deg/d
Q 2.910011532031367 1.9443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      7050 days (19.30 yr)  
   first obs. used      2000-01-05  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56972  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:47:03  

Additional Information
 Earth MOID = .80657 au 
 Jupiter MOID = 2.52038 au 
 T_jup = 3.513 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456638.5 (2013-Dec-12.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2307703390066967 8.6786e-08  
q 1.816306820716324 2.0328e-07 au
tp 2456483.673161473491
(2013-Jul-10.17316147)
6.8568e-05 TDB
node 342.2615851627887 0.00017436 deg
peri 7.477997139720531 0.00017503 deg
i 1.975486004441011 8.1571e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      7050 days (19.30 yr)  
   first obs. used      2000-01-05  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56972  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:47:03  

Additional Information
 Jupiter MOID = 2.52038 au 
 T_jup = 3.513 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.5318352071495E-15 -1.761167503681897E-14 2.652143928247201E-12 2.491541217936896E-14 3.937336056005241E-13 -2.51570261635685E-15
q -1.761167503681897E-14 4.13216926781461E-14 -5.785094955370278E-12 -6.26031676398083E-14 -8.238798787345384E-13 5.593137202295859E-15
tp 2.652143928247201E-12 -5.785094955370278E-12 4.70157114335119E-9 -1.191147480154027E-11 1.0647059802902E-9 -4.477575663812599E-12
node 2.491541217936896E-14 -6.26031676398083E-14 -1.191147480154027E-11 3.040203096802911E-8 -3.038724220086491E-8 3.138036640801674E-10
peri 3.937336056005241E-13 -8.238798787345384E-13 1.0647059802902E-9 -3.038724220086491E-8 3.063670127081071E-8 -3.146239812057186E-10
i -2.51570261635685E-15 5.593137202295859E-15 -4.477575663812599E-12 3.138036640801674E-10 -3.146239812057186E-10 6.65390635571533E-11

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 17.0   n/a MPO470004  

185833 (2000 AL221)          Discovered 2000-Jan-08 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2000 AL221 = 2000 AW245 = 2002 RO86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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