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JPL Small-Body Database Browser
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312979 (1999 KT4)
Classification: Mars-crossing Asteroid          SPK-ID: 2312979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3675739132383506 4.8031e-08  
a 2.21329103235096 8.9982e-09 au
q 1.399742986454368 1.0242e-07 au
i 2.290840420623814 7.2074e-06 deg
node 111.471109847755 0.00014273 deg
peri 127.6868658435682 0.00014374 deg
M 14.60956065627297 1.7822e-05 deg
tp 2458551.692016119615
(2019-Mar-09.19201612)
5.9287e-05 TDB
period 1202.696960595741
3.29
7.3344e-06
2.008e-08
d
yr
n .2993272717856363 1.8254e-09 deg/d
Q 3.026839078247551 1.2306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      214  
   data-arc span      7473 days (20.46 yr)  
   first obs. used      1999-03-22  
   last obs. used      2019-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64569  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:02:36  

Additional Information
 Earth MOID = .389182 au 
 Jupiter MOID = 1.99229 au 
 T_jup = 3.563 
[ 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 17.8   n/a MPO352918  

312979 (1999 KT4)          Discovered 1999-May-18 by LINEAR at Socorro
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09

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