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212990 (2009 DT24)
Classification: Main-belt Asteroid          SPK-ID: 2212990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0764202731842302 1.1835e-07  
a 2.906174248066885 3.8514e-08 au
q 2.684083618108639 3.4341e-07 au
i 3.077473707870316 6.3048e-06 deg
node 80.62152545675174 0.00024343 deg
peri 237.7464790326761 0.0002609 deg
M 315.2699789208428 9.7048e-05 deg
tp 2459225.342033327989
(2021-Jan-10.84203333)
0.00048884 TDB
period 1809.592976824979
4.95
3.5972e-05
9.849e-08
d
yr
n .1989397641405737 3.9547e-09 deg/d
Q 3.128264878025132 4.1457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      6467 days (17.71 yr)  
   first obs. used      2001-09-12  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:57:29  

Additional Information
 Earth MOID = 1.67233 au 
 Jupiter MOID = 2.08617 au 
 T_jup = 3.279 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457139.5 (2015-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07536233271346857 1.2042e-07  
q 2.68540152705032 3.4777e-07 au
tp 2457423.451800142188
(2016-Feb-04.95180014)
0.0004769 TDB
node 80.62784176238587 0.0002434 deg
peri 238.9997705665141 0.00026059 deg
i 3.078144449774045 6.3105e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      6467 days (17.71 yr)  
   first obs. used      2001-09-12  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:57:29  

Additional Information
 Jupiter MOID = 2.08617 au 
 T_jup = 3.279 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.450178590579928E-14 -4.165377613567062E-14 4.836825303894E-11 -3.313644989048632E-13 9.53192197008958E-12 6.299839987799086E-15
q -4.165377613567062E-14 1.209463531456984E-13 -1.3723063428292E-10 9.408066923074671E-13 -2.70916713544759E-11 -1.73132595103936E-14
tp 4.836825303894E-11 -1.3723063428292E-10 2.274356386297988E-7 -1.309894330311102E-9 4.477436428185235E-8 2.3130547091599E-11
node -3.313644989048632E-13 9.408066923074671E-13 -1.309894330311102E-9 5.924295313417537E-8 -5.940808094330545E-8 -6.949586077719077E-10
peri 9.53192197008958E-12 -2.70916713544759E-11 4.477436428185235E-8 -5.940808094330545E-8 6.790883591396818E-8 6.983458340531024E-10
i 6.299839987799086E-15 -1.73132595103936E-14 2.3130547091599E-11 -6.949586077719077E-10 6.983458340531024E-10 3.982213533932212E-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 15.8   n/a MPO433392  

212990 (2009 DT24)          Discovered 2009-Feb-21 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

Alternate Designations
 2009 DT24 = 2006 SL40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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