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70044 (1999 DD2)
Classification: Main-belt Asteroid          SPK-ID: 2070044
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2010507713584795 4.4519e-08  
a 2.152703070044028 1.2169e-08 au
q 1.719900457305909 1.0059e-07 au
i 5.848012934023718 6.9848e-06 deg
node 326.5673152215349 4.6196e-05 deg
peri 311.7875401807608 5.1835e-05 deg
M 154.7579213250623 2.9011e-05 deg
tp 2458504.564714584576
(2019-Jan-21.06471458)
8.9752e-05 TDB
period 1153.651465597965
3.16
9.7819e-06
2.678e-08
d
yr
n .3120526525863714 2.6459e-09 deg/d
Q 2.585505682782147 1.4615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      7571 days (20.73 yr)  
   first obs. used      1999-02-12  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57277  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:09:06  

Additional Information
 Earth MOID = .710298 au 
 Jupiter MOID = 2.56938 au 
 T_jup = 3.671 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456578.5 (2013-Oct-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .201519855498347 4.4587e-08  
q 1.7185641360559 1.008e-07 au
tp 2456196.531882254299
(2012-Sep-26.03188225)
7.5637e-05 TDB
node 326.6421433013094 4.6251e-05 deg
peri 311.475903467793 5.1835e-05 deg
i 5.84533883321118 6.9797e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      7571 days (20.73 yr)  
   first obs. used      1999-02-12  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57277  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:09:06  

Additional Information
 Jupiter MOID = 2.56938 au 
 T_jup = 3.671 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.987987904582212E-15 -4.477379590496626E-15 -4.512230365026379E-13 4.956141539318139E-15 -7.497994605206915E-14 2.078661494209573E-15
q -4.477379590496626E-15 1.01606799561406E-14 1.448405352169088E-12 -1.373636552548625E-14 3.049625301927828E-13 -4.748281978565194E-15
tp -4.512230365026379E-13 1.448405352169088E-12 5.72098522685142E-9 -3.949920143197673E-11 1.783171922827131E-9 -4.466477924931211E-12
node 4.956141539318139E-15 -1.373636552548625E-14 -3.949920143197673E-11 2.139180589405589E-9 -2.139488896462969E-9 1.379052024948755E-10
peri -7.497994605206915E-14 3.049625301927828E-13 1.783171922827131E-9 -2.139488896462969E-9 2.686817943457614E-9 -1.385150765973739E-10
i 2.078661494209573E-15 -4.748281978565194E-15 -4.466477924931211E-12 1.379052024948755E-10 -1.385150765973739E-10 4.87167863539416E-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 17.0   n/a MPO436272  

70044 (1999 DD2)          Discovered 1999-Feb-18 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 DD2 = 2000 SC229 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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