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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 ]

[ hide orbit diagram ]

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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456575.5 (2013-Oct-10.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03111088045674588 5.7069e-08  
q 2.675536208818974 1.6517e-07 au
tp 2455838.577314956905
(2011-Oct-04.07731496)		 0.00044414 TDB
node 7.731604772717392 5.7264e-05 deg
peri 310.1672479205319 0.00011144 deg
i 5.141285859735578 6.6269e-06 deg
   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
 Jupiter MOID = 2.23664 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.256843076155517E-15 -9.369057117284001E-15 6.76276166224089E-12 -1.232969070893431E-14 1.482155777037698E-12 -3.139288338333725E-15
q -9.369057117284001E-15 2.728252166479153E-14 -1.973189144577342E-11 3.319774869772706E-14 -4.295740423720294E-12 8.877411011308928E-15
tp 6.76276166224089E-12 -1.973189144577342E-11 1.972601723865766E-7 -6.714954815035537E-11 4.248212762234138E-8 -1.645473811740688E-12
node -1.232969070893431E-14 3.319774869772706E-14 -6.714954815035537E-11 3.279118452766702E-9 -3.280024917901649E-9 -1.782234550922291E-11
peri 1.482155777037698E-12 -4.295740423720294E-12 4.248212762234138E-8 -3.280024917901649E-9 1.241981713686038E-8 1.744017039127444E-11
i -3.139288338333725E-15 8.877411011308928E-15 -1.645473811740688E-12 -1.782234550922291E-11 1.744017039127444E-11 4.391621208911727E-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 15.09   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

[ 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
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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