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78396 (2002 QW1)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078396
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1214139258371257 5.8231e-08  
a 3.214764250842911 2.0974e-08 au
q 2.824447102507227 1.822e-07 au
i 6.324847700191764 6.9975e-06 deg
node 201.4280536382134 3.4376e-05 deg
peri 156.9281325988102 4.0365e-05 deg
M 6.814337989813892 1.9445e-05 deg
tp 2458960.648626693703
(2020-Apr-21.14862669)		 0.00011369 TDB
period 2105.339419869151
5.76		 2.0604e-05
5.641e-08		 d
yr
n .170993805845508 1.6734e-09 deg/d
Q 3.605081399178595 2.3521e-08 au
   Orbit Determination Parameters
   # obs. used (total)      514  
   data-arc span      10630 days (29.10 yr)  
   first obs. used      1991-10-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .523  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:06:30  

Additional Information
 Earth MOID = 1.82241 au 
 Jupiter MOID = 1.87161 au 
 T_jup = 3.169 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457591.5 (2016-Jul-22.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1269935033631101 5.9478e-08  
q 2.804802706744717 1.8774e-07 au
tp 2456843.337840269135
(2014-Jul-04.83784027)		 0.00010542 TDB
node 201.5778143001292 3.4262e-05 deg
peri 155.2692460584053 3.9614e-05 deg
i 6.333177139662748 7.0204e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      514  
   data-arc span      10630 days (29.10 yr)  
   first obs. used      1991-10-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .523  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:06:30  

Additional Information
 Jupiter MOID = 1.87161 au 
 T_jup = 3.169 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.537660602609461E-15 -1.112016375958138E-14 1.96111032649374E-12 -1.224487729932002E-15 3.20981182736941E-13 -1.160890814295413E-15
q -1.112016375958138E-14 3.524578725777294E-14 -6.431362940871841E-12 2.417492515726397E-15 -1.038542994843052E-12 4.758305721866933E-15
tp 1.96111032649374E-12 -6.431362940871841E-12 1.111285431481506E-8 -2.540217521137692E-12 2.098471495907695E-9 2.452277367137598E-12
node -1.224487729932002E-15 2.417492515726397E-15 -2.540217521137692E-12 1.173901753859013E-9 -1.167003299337473E-9 -2.156034472746369E-11
peri 3.20981182736941E-13 -1.038542994843052E-12 2.098471495907695E-9 -1.167003299337473E-9 1.569253541169437E-9 2.192845297748287E-11
i -1.160890814295413E-15 4.758305721866933E-15 2.452277367137598E-12 -2.156034472746369E-11 2.192845297748287E-11 4.928661828446421E-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 15.1   n/a MPO449493  
diameter diameter 5.724 km 0.539 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78396 (2002 QW1)          Discovered 2002-Aug-16 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 QW1 = 1991 TO10 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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