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52750 (1998 KK17)
Classification: Apollo [NEO]          SPK-ID: 2052750
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 193 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5251388617035839 3.8811e-08  
a 1.427137800921568 2.9667e-09 au
q .6776922806514596 5.5044e-08 au
i 11.16942515949248 4.9375e-06 deg
node 141.3434299942676 1.8323e-05 deg
peri 334.1125769610742 1.8661e-05 deg
M 137.4355893413307 1.1679e-05 deg
tp 2458962.764520989783
(2020-Apr-23.26452099)
1.954e-05 TDB
period 622.7264193637842
1.70
1.9418e-06
5.316e-09
d
yr
n .5781029819929565 1.8026e-09 deg/d
Q 2.176583321191675 4.5246e-09 au
  Orbit Determination Parameters
   # obs. used (total)      992  
   data-arc span      10511 days (28.78 yr)  
   first obs. used      1992-08-29  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43696  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-09 05:52:52  

Additional Information
 Earth MOID = .162479 au 
 Jupiter MOID = 2.95505 au 
 T_jup = 4.521 
[ 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 16.45   n/a E2021B10  
diameter diameter 1.059 km 0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 26.43 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:
[Warner, B.D. (2017) Minor Planet Bull. 44, 22-36.]
geometric albedo albedo 0.471   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

52750 (1998 KK17)          Discovered 1998-May-29 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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