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78162 (2002 NR28)
Classification: Main-belt Asteroid          SPK-ID: 2078162
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06609692279361731 4.542e-08  
a 2.760593018583345 1.8536e-08 au
q 2.578126314969442 1.306e-07 au
i 7.563180751323122 4.5553e-06 deg
node 116.0383746940971 3.9074e-05 deg
peri 239.4432943280568 5.4697e-05 deg
M 311.6389328533622 4.0533e-05 deg
tp 2459425.558479089190
(2021-Jul-30.05847909)		 0.00018923 TDB
period 1675.336324288313
4.59		 1.6873e-05
4.62e-08		 d
yr
n .2148822267988065 2.1642e-09 deg/d
Q 2.943059722197247 1.9761e-08 au
   Orbit Determination Parameters
   # obs. used (total)      613  
   data-arc span      7971 days (21.82 yr)  
   first obs. used      1998-09-24  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63292  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:59  

Additional Information
 Earth MOID = 1.58004 au 
 Jupiter MOID = 2.37785 au 
 T_jup = 3.326 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457029.5 (2015-Jan-07.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0660985035162841 4.5422e-08  
q 2.575225523294035 1.3022e-07 au
tp 2457761.328481254230
(2017-Jan-07.82848125)		 0.00018566 TDB
node 116.0567686354162 3.9104e-05 deg
peri 241.4798220603524 5.4738e-05 deg
i 7.562179395114264 4.5551e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      613  
   data-arc span      7971 days (21.82 yr)  
   first obs. used      1998-09-24  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63292  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:59  

Additional Information
 Jupiter MOID = 2.37785 au 
 T_jup = 3.326 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.063188938580591E-15 -5.86604694757985E-15 5.918286992381656E-13 -3.856426514137217E-15 1.514735262393194E-13 1.382763407598703E-15
q -5.86604694757985E-15 1.69575776931949E-14 -1.118541875713344E-12 1.01666479622294E-14 -3.425151694919891E-13 -3.569395296532283E-15
tp 5.918286992381656E-13 -1.118541875713344E-12 3.447033323915847E-8 -1.008984389481097E-12 7.13934039275288E-9 1.91747463813062E-12
node -3.856426514137217E-15 1.01666479622294E-14 -1.008984389481097E-12 1.52908984631565E-9 -1.515702618632703E-9 -1.900099465597087E-12
peri 1.514735262393194E-13 -3.425151694919891E-13 7.13934039275288E-9 -1.515702618632703E-9 2.996249489198521E-9 2.239900942868997E-12
i 1.382763407598703E-15 -3.569395296532283E-15 1.91747463813062E-12 -1.900099465597087E-12 2.239900942868997E-12 2.07484922404735E-11

[ 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 15.17   n/a E2021B10  

78162 (2002 NR28)          Discovered 2002-Jul-13 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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