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(2011 SP229)
Classification: Mars-crossing Asteroid          SPK-ID: 3581213
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .511738965307169 2.3108e-06  
a 3.148730409735268 3.5334e-06 au
q 1.537402367826124 9e-06 au
i 23.66358503796478 0.00026601 deg
node 209.6147622933001 0.00026492 deg
peri 122.2106417525052 0.00026993 deg
M 258.10955462469 0.0007382 deg
tp 2459778.107208333703
(2022-Jul-17.60720833)
0.0051499 TDB
period 2040.80563426922
5.59
0.0034352
9.405e-06
d
yr
n .1764009242011478 2.9693e-07 deg/d
Q 4.760058451644413 5.3416e-06 au
  Orbit Determination Parameters
   # obs. used (total)      55  
   data-arc span      1718 days (4.70 yr)  
   first obs. used      2011-09-30  
   last obs. used      2016-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .47746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:25:39  

Additional Information
 Earth MOID = .643518 au 
 Jupiter MOID = 1.62042 au 
 T_jup = 2.877 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO382694  

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1981-Mar-20 22:42 01:24 Jupiter 1.63540423355085 1.63534992208741 1.63545861864771 5.90206101141045 5.81364490847271 2444684.446073203 84.4282510929937 17862.9760384187 397.684435760162 -80.4657109693787 168584.640829415 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 05:25:39 2021-Apr-15 05:25
1992-Aug-08 10:40 00:38 Jupiter 1.73153620193739 1.73139736905928 1.73167505693497 7.46960657654134 7.40382835997414 2448842.944289571 37.9606573376634 12038.8566224959 656.089803287434 55.8132867381708 176602.372558624 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 05:25:39 2021-Apr-15 05:25
2088-Mar-07 18:44 03:46 Jupiter 1.70314942298322 1.70288121834622 1.70341816767891 5.70536553303658 5.61752093828603 2483753.280348049 226.220728267829 50031.2199536141 211.285283933821 -74.3924105024951 218476.25836844 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 05:25:39 2021-Apr-15 05:25
2099-Jul-13 14:39 03:30 Jupiter 1.56900657878663 1.56889999109063 1.56911351931354 6.86197760280092 6.78284924459361 2487898.110750832 210.099118263796 37932.6989131727 582.714936835117 82.4308132638742 180536.738927059 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 05:25:39 2021-Apr-15 05:25
2195-Mar-01 15:10 11:38 Jupiter 1.85281493817423 1.85176188920839 1.85388359235077 5.65661778817101 5.57521443452354 2522827.132006167 698.205887264405 275234.532361051 200.285522615105 -78.8979126467137 256904.941192293 T 8 CATAB v2.0g-lin.ifort 2021-Apr-15 05:25:39 2021-Apr-15 05:25
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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