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(2015 DP155)
Classification: Amor [NEO, PHA]          SPK-ID: 3711785
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 115 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2236420543807397 7.1041e-09  
a 1.31575590168188 3.6987e-09 au
q 1.021497548766162 8.7047e-09 au
i 5.440529694789547 1.6635e-06 deg
node 89.15144488525993 4.8348e-06 deg
peri 152.1417797194999 7.5409e-06 deg
M 121.8824101369184 3.1374e-06 deg
tp 2458813.862052571044
(2019-Nov-26.36205257)
4.8506e-06 TDB
period 551.2662655665059
1.51
2.3245e-06
6.364e-09
d
yr
n .6530419553789454 2.7536e-09 deg/d
Q 1.610014254597598 4.5259e-09 au
  Orbit Determination Parameters
   # obs. used (total)      631  
   # delay obs. used      4  
   # Doppler obs. used      2  
   data-arc span      1241 days (3.40 yr)  
   first obs. used      2015-02-17  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35532  
   source      ORB  
   producer      Giorgini  
   solution date      2018-Aug-16 16:00:07  

Additional Information
 Earth MOID = .0218344 au 
 Jupiter MOID = 3.3983 au 
 T_jup = 4.930 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457740.5 (2016-Dec-18.0) TDB
Reference: JPL 115 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2244523879780632 7.1491e-09  
q 1.021165456052211 8.6786e-09 au
tp 2457710.448014509500
(2016-Nov-17.94801451)
6.5544e-06 TDB
node 89.46316425327566 4.997e-06 deg
peri 151.5643001089326 7.5564e-06 deg
i 5.381589410463265 1.6771e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      631  
   # delay obs. used      4  
   # Doppler obs. used      2  
   data-arc span      1241 days (3.40 yr)  
   first obs. used      2015-02-17  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35532  
   source      ORB  
   producer      Giorgini  
   solution date      2018-Aug-16 16:00:07  

Additional Information
 Jupiter MOID = 3.3983 au 
 T_jup = 4.930 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.110959427340077E-17 -6.064761258846172E-17 -3.517872055168034E-14 1.232743898266442E-14 -4.449976017972793E-14 -1.403022940684784E-16
q -6.064761258846172E-17 7.531837877404701E-17 3.778849773516703E-14 -1.792752553150894E-14 5.467011513113786E-14 8.280359348936611E-16
tp -3.517872055168034E-14 3.778849773516703E-14 4.296026309303111E-11 4.424818775112776E-12 3.480067882916603E-11 -2.102565879748013E-12
node 1.232743898266442E-14 -1.792752553150894E-14 4.424818775112776E-12 2.497040569625648E-11 -2.213947136778529E-11 -7.299428582844015E-12
peri -4.449976017972793E-14 5.467011513113786E-14 3.480067882916603E-11 -2.213947136778529E-11 5.70990199935111E-11 5.810378457034719E-12
i -1.403022940684784E-16 8.280359348936611E-16 -2.102565879748013E-12 -7.299428582844015E-12 5.810378457034719E-12 2.812556120763476E-12

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 21.5   n/a E2018N24  
rotation period rot_per 3.097 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Reshetnyk, V.; Godunova, B.; Sergeev, O.; Simon, A. Astronomer's Telegram 11645. http://www.astronomerstelegram.org]
[Warner, B.D. (2018) Minor Planet Bull. 45, 366-379.]

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