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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 
[ 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 15.17   n/a E2021B10  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2151-Feb-09 18:09 00:08 Psych 0.0320830856190165 0.0320481095465003 0.0321180631229722 2.17995708939381 2.17995691640058 2506736.256479198 7.90277930107375 1772.48864908785 52.5034209805062 -11.0636782889917 17687.0098870791 T 20 CATAB v2.0f-lin.ifort 2020-Nov-12 21:28:02 2020-Nov-12 21:28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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