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15422 (1998 QP45)
Classification: Main-belt Asteroid          SPK-ID: 2015422
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1689679105778833 1.2556e-08  
a 2.590681590991394 9.4692e-09 au
q 2.152939535588991 3.569e-08 au
i 12.24464046396856 9.2461e-07 deg
node 191.5031099275592 1.4865e-06 deg
peri 340.548822924011 5.9091e-06 deg
M 300.4208825871575 8.6926e-06 deg
tp 2459452.564131380189
(2021-Aug-26.06413138)
3.7596e-05 TDB
period 1523.068673006359
4.17
8.3505e-06
2.286e-08
d
yr
n .2363649166845525 1.2959e-09 deg/d
Q 3.028423646393795 1.1069e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2325  
   data-arc span      24595 days (67.34 yr)  
   first obs. used      1953-11-11  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44421  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:57:29  

Additional Information
 Earth MOID = 1.16066 au 
 Jupiter MOID = 1.95074 au 
 T_jup = 3.368 
[ 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 13.3   n/a MPO502287  
diameter diameter 11.562 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.425 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.061   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15422 (1998 QP45)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QP45 = 2000 AO188 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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