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15743 (1991 ND7)
Classification: Main-belt Asteroid          SPK-ID: 2015743
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04581294907785338 3.4591e-08  
a 2.706317539201347 1.0058e-08 au
q 2.582333151589414 9.6016e-08 au
i 2.797133232486172 3.8505e-06 deg
node 155.0978431240928 6.4458e-05 deg
peri 162.0632963680809 7.567e-05 deg
M 199.0814328805367 4.1192e-05 deg
tp 2459927.392538880269
(2022-Dec-13.89253888)
0.00018703 TDB
period 1626.172285033018
4.45
9.0651e-06
2.482e-08
d
yr
n .2213787575359461 1.2341e-09 deg/d
Q 2.830301926813279 1.0518e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2150  
   data-arc span      15544 days (42.56 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51115  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:06:50  

Additional Information
 Earth MOID = 1.56697 au 
 Jupiter MOID = 2.29408 au 
 T_jup = 3.362 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456869.5 (2014-Jul-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04736813824553683 3.4591e-08  
q 2.577396525988318 9.6214e-08 au
tp 2456666.599620388702
(2014-Jan-09.09962039)
0.00017772 TDB
node 155.1348708821573 6.4423e-05 deg
peri 160.157998416608 7.501e-05 deg
i 2.796834249219991 3.8538e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2150  
   data-arc span      15544 days (42.56 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51115  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:06:50  

Additional Information
 Jupiter MOID = 2.29408 au 
 T_jup = 3.362 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.196563102943094E-15 -3.312409071912682E-15 1.486594364403692E-12 6.885089200897697E-15 3.021006390151684E-13 1.665574967256962E-16
q -3.312409071912682E-15 9.257198913185958E-15 -3.755106904002298E-12 -1.905457472058257E-14 -7.571944589127931E-13 -4.345200372734949E-16
tp 1.486594364403692E-12 -3.755106904002298E-12 3.158525306763827E-8 1.104367557060602E-11 6.837303663904492E-9 -7.425661312069118E-13
node 6.885089200897697E-15 -1.905457472058257E-14 1.104367557060602E-11 4.150338622923365E-9 -4.142844509992403E-9 2.006536400279616E-11
peri 3.021006390151684E-13 -7.571944589127931E-13 6.837303663904492E-9 -4.142844509992403E-9 5.626523408009261E-9 -2.020593423929702E-11
i 1.665574967256962E-16 -4.345200372734949E-16 -7.425661312069118E-13 2.006536400279616E-11 -2.020593423929702E-11 1.485142750849326E-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 14.10   n/a MPCxxxxx  

15743 (1991 ND7)          Discovered 1991-Jul-12 by Debehogne, H. at La Silla
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 ND7 = 1978 RH7 = 1996 TL38 = 1999 GA26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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