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78424 (2002 QB42)
Classification: Main-belt Asteroid          SPK-ID: 2078424
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03292331231984809 5.6291e-08  
a 2.761252314071483 2.0528e-08 au
q 2.670342741741404 1.6344e-07 au
i 5.143571238717045 6.6313e-06 deg
node 7.562309442733002 5.721e-05 deg
peri 306.6159533279897 0.00010812 deg
M 6.233063122184796 9.0802e-05 deg
tp 2459171.482727353935
(2020-Nov-17.98272735)
0.00042272 TDB
period 1675.936525558865
4.59
1.8689e-05
5.117e-08
d
yr
n .2148052712676293 2.3953e-09 deg/d
Q 2.852161886401561 2.1203e-08 au
  Orbit Determination Parameters
   # obs. used (total)      666  
   data-arc span      8860 days (24.26 yr)  
   first obs. used      1996-03-27  
   last obs. used      2020-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59253  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:56  

Additional Information
 Earth MOID = 1.65881 au 
 Jupiter MOID = 2.23664 au 
 T_jup = 3.335 
[ 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 15.09   n/a E2020-QM9  
diameter diameter 4.456 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78424 (2002 QB42)          Discovered 2002-Aug-29 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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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
2190-Apr-16 14:17 00:53 Amphi 0.024810400922235 0.0248075964546382 0.0248132562136539 1.14434068510757 1.14434048262672 2521047.094964083 53.4474313327502 1990.81670932903 65.0777514719078 -86.3307025819443 56565.5882661286 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 21:26:58 2020-Nov-12 21:26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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