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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 128 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2235454158477454 5.6566e-09  
a 1.315861731387555 2.4774e-09 au
q 1.02170687344639 7.8841e-09 au
i 5.440350783582699 1.4838e-06 deg
node 89.15201872894536 4.4556e-06 deg
peri 152.1415289504674 6.0937e-06 deg
M 252.4818093636957 2.9948e-06 deg
tp 2459365.161951605814
(2021-May-30.66195161)
4.8425e-06 TDB
period 551.3327765960141
1.51
1.557e-06
4.263e-09
d
yr
n .6529631744781752 1.844e-09 deg/d
Q 1.610016589328721 3.0312e-09 au
  Orbit Determination Parameters
   # obs. used (total)      683  
   # delay obs. used      4  
   # Doppler obs. used      2  
   data-arc span      2267 days (6.21 yr)  
   first obs. used      2015-02-17  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37614  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 06:18:39  

Additional Information
 Earth MOID = .0205831 au 
 Jupiter MOID = 3.39716 au 
 T_jup = 4.930 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458064.5 (2017-Nov-07.0) TDB
Reference: JPL 128 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2245052232683508 6.0528e-09  
q 1.021120821340349 7.7943e-09 au
tp 2458262.366043885369
(2018-May-23.86604389)
3.8837e-06 TDB
node 89.4603197036914 4.6002e-06 deg
peri 151.5845590036683 6.0881e-06 deg
i 5.381704572514681 1.4961e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      683  
   # delay obs. used      4  
   # Doppler obs. used      2  
   data-arc span      2267 days (6.21 yr)  
   first obs. used      2015-02-17  
   last obs. used      2021-05-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37614  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 06:18:39  

Additional Information
 Jupiter MOID = 3.39716 au 
 T_jup = 4.930 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.663660965949893E-17 -4.629745508414516E-17 -1.445230279779396E-14 1.339231904791334E-14 -2.861621156904769E-14 -4.521527178450786E-16
q -4.629745508414516E-17 6.075175734877711E-17 1.89095518624664E-14 -1.873921270603789E-14 3.868884877658857E-14 1.089528334335051E-15
tp -1.445230279779396E-14 1.89095518624664E-14 1.508311077284505E-11 9.825736301004449E-13 1.512966141266702E-11 -9.337031251183778E-13
node 1.339231904791334E-14 -1.873921270603789E-14 9.825736301004449E-13 2.116153509865157E-11 -2.046248256497138E-11 -5.841336201396491E-12
peri -2.861621156904769E-14 3.868884877658857E-14 1.512966141266702E-11 -2.046248256497138E-11 3.706545123008226E-11 5.004254635405868E-12
i -4.521527178450786E-16 1.089528334335051E-15 -9.337031251183778E-13 -5.841336201396491E-12 5.004254635405868E-12 2.238364070950481E-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 21.6   n/a E2021-DA1  
rotation period rot_per 3.097 h n/a LCDB (Rev. 2020-October); 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.]

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