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(2015 DR215)
Classification: Atira [NEO, PHA]          SPK-ID: 3712675
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .471504713038427 1.5873e-07  
a .6664133689380016 1.0825e-07 au
q .3521963246519178 1.3732e-07 au
i 4.088190125040342 2.5133e-05 deg
node 314.9522579183326 0.00033429 deg
peri 42.27920497704407 0.00033106 deg
M 67.41314855383608 0.0007712 deg
tp 2458963.290306825828
(2020-Apr-23.79030683)
0.00041665 TDB
period 198.7073713372766
0.54
4.8415e-05
1.326e-07
d
yr
n 1.811709337088219 4.4143e-07 deg/d
Q .9806304132240854 1.5929e-07 au
  Orbit Determination Parameters
   # obs. used (total)      41  
   data-arc span      404 days (1.11 yr)  
   first obs. used      2015-02-18  
   last obs. used      2016-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .59841  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jul-08 07:51:32  

Additional Information
 Earth MOID = .044706 au 
 Jupiter MOID = 4.46227 au 
 T_jup = 8.438 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457136.5 (2015-Apr-24.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4717931633095279 1.5986e-07  
q .3518999719248581 1.3851e-07 au
tp 2457175.101756970476
(2015-Jun-01.60175697)
4.4788e-05 TDB
node 315.0500133714391 0.00033338 deg
peri 42.16643580535099 0.00033035 deg
i 4.098072863279528 2.5207e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      41  
   data-arc span      404 days (1.11 yr)  
   first obs. used      2015-02-18  
   last obs. used      2016-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .59841  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jul-08 07:51:32  

Additional Information
 Jupiter MOID = 4.46227 au 
 T_jup = 8.438 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.555500110079886E-14 -2.046111139977752E-14 -1.084678892921756E-12 2.350117101192956E-11 -2.602442445113072E-11 5.283534312315578E-13
q -2.046111139977752E-14 1.918556055968788E-14 -5.228699552392212E-13 -8.838235960889301E-12 1.259446684627197E-11 5.781476435397621E-13
tp -1.084678892921756E-12 -5.228699552392212E-13 2.005991397971835E-9 -1.154764158201871E-8 1.144221116288823E-8 -8.40192803206624E-10
node 2.350117101192956E-11 -8.838235960889301E-12 -1.154764158201871E-8 1.111412503575793E-7 -1.092752347400141E-7 7.569339590514343E-9
peri -2.602442445113072E-11 1.259446684627197E-11 1.144221116288823E-8 -1.092752347400141E-7 1.091320080385273E-7 -7.116307602434975E-9
i 5.283534312315578E-13 5.781476435397621E-13 -8.40192803206624E-10 7.569339590514343E-9 -7.116307602434975E-9 6.353862308028726E-10

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 20.3   n/a E2016F70  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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