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213167 (2000 SR21)
Classification: Mars-crossing Asteroid          SPK-ID: 2213167
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1064876667890388 6.3766e-08  
a 1.822865208960046 7.663e-09 au
q 1.628752545986977 1.1666e-07 au
i 22.14926843000122 5.9242e-06 deg
node 184.1121159339065 1.6913e-05 deg
peri 269.0903249275894 3.2473e-05 deg
M 2.415080374711042 3.1068e-05 deg
tp 2459194.469416306341
(2020-Dec-10.96941631)
7.7561e-05 TDB
period 898.9390798129853
2.46
5.6685e-06
1.552e-08
d
yr
n .400472076567073 2.5253e-09 deg/d
Q 2.016977871933115 8.4791e-09 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      6863 days (18.79 yr)  
   first obs. used      2000-09-19  
   last obs. used      2019-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52856  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:37  

Additional Information
 Earth MOID = .755157 au 
 Jupiter MOID = 3.14095 au 
 T_jup = 3.945 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457559.5 (2016-Jun-20.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1062835487755744 6.378e-08  
q 1.62924616131902 1.1666e-07 au
tp 2457396.501468418979
(2016-Jan-09.00146842)
7.321e-05 TDB
node 184.147244526243 1.6906e-05 deg
peri 269.020812724116 3.2526e-05 deg
i 22.15131880044627 5.9256e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      6863 days (18.79 yr)  
   first obs. used      2000-09-19  
   last obs. used      2019-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52856  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:37  

Additional Information
 Jupiter MOID = 3.14095 au 
 T_jup = 3.945 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.067860066910377E-15 -7.427498678790793E-15 -2.288730730574995E-12 -1.205249286667433E-13 -9.083358266114136E-13 -2.392017736720199E-14
q -7.427498678790793E-15 1.360890522578746E-14 4.337498720863321E-12 2.224220946620763E-13 1.716645770852943E-12 4.461800807294186E-14
tp -2.288730730574995E-12 4.337498720863321E-12 5.359776330001218E-9 1.234633925727019E-10 2.071228564463809E-9 1.346901011109727E-11
node -1.205249286667433E-13 2.224220946620763E-13 1.234633925727019E-10 2.858255624412052E-10 -2.126028629763704E-10 4.52457935643558E-11
peri -9.083358266114136E-13 1.716645770852943E-12 2.071228564463809E-9 -2.126028629763704E-10 1.057929844715053E-9 -3.708335078919918E-11
i -2.392017736720199E-14 4.461800807294186E-14 1.346901011109727E-11 4.52457935643558E-11 -3.708335078919918E-11 3.511283847445912E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.98   n/a MPCxxxxx  

213167 (2000 SR21)          Discovered 2000-Sep-24 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

Alternate Designations
 2000 SR21 = 2004 FJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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