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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 ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216061997756623 5.7184e-08  
a 3.216151635232722 2.0532e-08 au
q 2.825047656969788 1.781e-07 au
i 6.323765972236404 6.6236e-06 deg
node 201.4217239580996 3.2308e-05 deg
peri 157.1179065339022 3.854e-05 deg
M 74.33626368720275 1.9343e-05 deg
tp 2458961.487807208087
(2020-Apr-21.98780721)
0.00011288 TDB
period 2106.702457686862
5.77
2.0174e-05
5.523e-08
d
yr
n .1708831727453702 1.6364e-09 deg/d
Q 3.607255613495655 2.3029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      556  
   data-arc span      10690 days (29.27 yr)  
   first obs. used      1991-10-10  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51809  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:05:59  

Additional Information
 Earth MOID = 1.82221 au 
 Jupiter MOID = 1.871 au 
 T_jup = 3.169 
[ 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 15.23   n/a MPCxxxxx  
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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