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78388 (2002 PT156)
Classification: Main-belt Asteroid          SPK-ID: 2078388
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1615434428204357 3.8084e-08  
a 3.000224080539861 2.0301e-08 au
q 2.515557553336675 1.1369e-07 au
i 1.00363860085724 5.5759e-06 deg
node 168.444784334602 0.00025456 deg
peri 269.8898244428223 0.00025545 deg
M 46.54933400356314 1.8986e-05 deg
tp 2458755.063054972605
(2019-Sep-28.56305497)
9.9507e-05 TDB
period 1898.143165766855
5.20
1.9266e-05
5.275e-08
d
yr
n .1896590344145928 1.925e-09 deg/d
Q 3.484890607743046 2.358e-08 au
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      7820 days (21.41 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56322  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:04  

Additional Information
 Earth MOID = 1.53132 au 
 Jupiter MOID = 1.7689 au 
 T_jup = 3.233 
[ 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 15.5   n/a MPO453204  
diameter diameter 4.428 km 0.323 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.25 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.062   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78388 (2002 PT156)          Discovered 2002-Aug-08 by Hoenig, S. F. at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 PT156 = 2000 ED25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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