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214991 (2008 CM21)
Classification: Main-belt Asteroid          SPK-ID: 2214991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1732532278356022 4.7004e-08  
a 2.987398950188038 3.3577e-08 au
q 2.469822439235271 1.5303e-07 au
i 5.824492002123944 6.1068e-06 deg
node 107.0102378262794 6.527e-05 deg
peri 233.0350570501728 6.8767e-05 deg
M 323.5904779094271 2.2865e-05 deg
tp 2459391.243936244360
(2021-Jun-25.74393624)
0.0001209 TDB
period 1885.985124362535
5.16
3.1796e-05
8.705e-08
d
yr
n .190881675231495 3.2181e-09 deg/d
Q 3.504975461140805 3.9394e-08 au
  Orbit Determination Parameters
   # obs. used (total)      190  
   data-arc span      5487 days (15.02 yr)  
   first obs. used      2005-06-16  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51965  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:48:55  

Additional Information
 Earth MOID = 1.4645 au 
 Jupiter MOID = 1.89911 au 
 T_jup = 3.227 
[ 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 16.32   n/a E2021B55  

214991 (2008 CM21)          Discovered 2008-Feb-07 by Ries, W. at Altschwendt
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ 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
1920-May-28 18:13 00:05 Jupiter 1.89556420550094 1.89556371923692 1.89556469177046 2.20969398800203 1.99726273814134 2422473.259315476 5.0327213759698 280.434971655634 14.6792011347572 -80.5184347952764 2300286.04837942 T 10 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:56 2021-Apr-13 23:48
2002-Oct-01 12:30 < 00:01 Jupiter 1.91285242930413 1.91285190483206 1.91285295377598 2.52412899828635 2.34213902718399 2452549.020918222 0.794719227981151 69.716113444297 14.888088288442 -88.1580239737508 1977690.5961658 T 10 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:56 2021-Apr-13 23:48
2039-Jun-23 12:08 00:01 Jupiter 1.92081297619871 1.92081247552765 1.92081347687043 2.11890549508264 1.89942591789678 2465963.005305602 1.20217505500081 105.16017815964 13.6668450230605 -81.003314642213 2414587.07130108 T 10 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:56 2021-Apr-13 23:48
2085-Feb-06 00:30 00:04 Jupiter 1.99903427486546 1.99903315795068 1.99903539178013 3.09680807412562 2.95682068171059 2482627.520945468 3.51927936605549 83.1746036487851 29.1623454054988 75.0823504249021 1358753.76681083 T 10 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:56 2021-Apr-13 23:48
2121-Oct-26 02:16 00:05 Jupiter 1.90626624168129 1.90626577547469 1.90626670788843 2.32609692634528 2.12651243271655 2496037.594421323 5.4445185881629 270.006765567931 12.8984899812177 -83.4538695382242 2167668.4679643 T 10 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:56 2021-Apr-13 23:48
2158-Jul-20 05:27 00:07 Jupiter 1.95804899215472 1.95804742500278 1.95805055933692 2.0970414587369 1.87947146671753 2509453.726739217 7.39367635509791 432.423107820309 12.5674460870737 -83.7772822238177 2222518.86077342 T 10 CATAB v2.0f-lin.ifort 2021-Apr-13 23:48:56 2021-Apr-13 23:48

Alternate Designations
 2008 CM21 = 2005 MS6 = 2006 WM7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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