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120772 (1998 DM15)
Classification: Main-belt Asteroid          SPK-ID: 2120772
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2096503935375898 5.0092e-08  
a 2.624206190941862 1.1533e-08 au
q 2.074040330287121 1.3165e-07 au
i 4.009674166950025 4.0479e-06 deg
node 62.50306157509883 7.5744e-05 deg
peri 95.5925065736925 7.6549e-05 deg
M 87.97675850702046 1.0225e-05 deg
tp 2458621.044531421697
(2019-May-17.54453142)
4.3184e-05 TDB
period 1552.727913671521
4.25
1.0236e-05
2.802e-08
d
yr
n .2318500213915507 1.5284e-09 deg/d
Q 3.174372051596603 1.3951e-08 au
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      8181 days (22.40 yr)  
   first obs. used      1996-11-07  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57589  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:27:57  

Additional Information
 Earth MOID = 1.08783 au 
 Jupiter MOID = 1.82219 au 
 T_jup = 3.368 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO320375  

120772 (1998 DM15)          Discovered 1998-Feb-22 by NEAT at Haleakala
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 DM15 = 2001 XE241 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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