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15678 (1981 DM)
Classification: Main-belt Asteroid          SPK-ID: 2015678
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08217694157142087 3.2826e-08  
a 2.359524459770013 8.3142e-09 au
q 2.165625956103154 7.8793e-08 au
i 6.629593768272371 3.5486e-06 deg
node 262.5314856883339 3.1948e-05 deg
peri 339.7883736188259 3.8975e-05 deg
M 295.4394542699583 2.2879e-05 deg
tp 2459437.910457311622
(2021-Aug-11.41045731)
8.4337e-05 TDB
period 1323.838943207905
3.62
6.9972e-06
1.916e-08
d
yr
n .2719364027225653 1.4373e-09 deg/d
Q 2.553422963436872 8.9975e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1721  
   data-arc span      15092 days (41.32 yr)  
   first obs. used      1979-11-26  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50214  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:06:02  

Additional Information
 Earth MOID = 1.15206 au 
 Jupiter MOID = 2.46572 au 
 T_jup = 3.539 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456998.5 (2014-Dec-07.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08255315391620673 3.2748e-08  
q 2.164867673646235 7.8644e-08 au
tp 2456791.214392074182
(2014-May-13.71439207)
8.2979e-05 TDB
node 262.5876515925283 3.1969e-05 deg
peri 340.0228322645219 3.897e-05 deg
i 6.627071254175241 3.5476e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1721  
   data-arc span      15092 days (41.32 yr)  
   first obs. used      1979-11-26  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50214  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:06:02  

Additional Information
 Jupiter MOID = 2.46572 au 
 T_jup = 3.539 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.072410845245644E-15 -2.563580957208057E-15 -2.112771853990448E-13 1.451891777624285E-15 -5.001029687655707E-14 -1.045856229732089E-16
q -2.563580957208057E-15 6.184942244920343E-15 4.97875480103455E-13 -4.166477150127117E-15 1.19518718426066E-13 3.291508817610382E-16
tp -2.112771853990448E-13 4.97875480103455E-13 6.885594105616886E-9 -3.674144206123905E-12 1.862650354907501E-9 1.063597135218033E-12
node 1.451891777624285E-15 -4.166477150127117E-15 -3.674144206123905E-12 1.022023185075983E-9 -1.015855864351425E-9 -1.228073049921275E-12
peri -5.001029687655707E-14 1.19518718426066E-13 1.862650354907501E-9 -1.015855864351425E-9 1.518660205014749E-9 1.514451138216023E-12
i -1.045856229732089E-16 3.291508817610382E-16 1.063597135218033E-12 -1.228073049921275E-12 1.514451138216023E-12 1.258569932742113E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.62   n/a MPCxxxxx  

15678 (1981 DM)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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