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120071 (2003 DM16)
Classification: Main-belt Asteroid          SPK-ID: 2120071
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0246914634467077 4.4367e-08  
a 3.080497907017886 2.7172e-08 au
q 3.004435905549094 1.3929e-07 au
i 9.981795078643232 4.7883e-06 deg
node 153.1947903912476 2.9667e-05 deg
peri 9.894275676882213 0.00010598 deg
M 50.18566115571456 0.00010117 deg
tp 2458725.199529772228
(2019-Aug-29.69952977)
0.00055508 TDB
period 1974.83039975279
5.41
2.6129e-05
7.154e-08
d
yr
n .1822941352559009 2.4119e-09 deg/d
Q 3.156559908486677 2.7843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      6734 days (18.44 yr)  
   first obs. used      2001-11-15  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60167  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:34:14  

Additional Information
 Earth MOID = 2.01319 au 
 Jupiter MOID = 1.81879 au 
 T_jup = 3.204 
[ 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 15.3   n/a MPO469244  
rotation period rot_per 9.70 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

120071 (2003 DM16)          Discovered 2003-Feb-21 by NEAT at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2003 DM16 = 2005 NM76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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