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227257 (2005 SD82)
Classification: Main-belt Asteroid          SPK-ID: 2227257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1039007077599555 3.4737e-08  
a 2.58189559245911 1.9344e-08 au
q 2.313634813040299 9.2716e-08 au
i 2.003358141340824 4.8549e-06 deg
node 221.5991856984984 0.00018568 deg
peri 36.70346941904719 0.00018883 deg
M 340.4649770031288 3.4959e-05 deg
tp 2459282.727647819728
(2021-Mar-09.22764782)
0.00014726 TDB
period 1515.327277569282
4.15
1.7029e-05
4.662e-08
d
yr
n .2375724408376464 2.6699e-09 deg/d
Q 2.850156371877921 2.1354e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      6755 days (18.49 yr)  
   first obs. used      2001-09-22  
   last obs. used      2020-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64008  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:39:03  

Additional Information
 Earth MOID = 1.29719 au 
 Jupiter MOID = 2.18839 au 
 T_jup = 3.416 
[ 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 17.07   n/a E2021B55  

227257 (2005 SD82)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2005 SD82 = 2001 SQ285 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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