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192676 (1999 RK239)
Classification: Main-belt Asteroid          SPK-ID: 2192676
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2465716455333024 5.3581e-08  
a 2.677792275004055 2.1396e-08 au
q 2.01752462735994 1.4867e-07 au
i 16.18748647600697 5.4191e-06 deg
node 157.0635771789904 2.0883e-05 deg
peri 199.4274395827958 2.4064e-05 deg
M 353.867334780776 1.6731e-05 deg
tp 2459423.765314398591
(2021-Jul-28.26531440)
7.4633e-05 TDB
period 1600.529758696784
4.38
1.9183e-05
5.252e-08
d
yr
n .2249255273411015 2.6958e-09 deg/d
Q 3.338059922648171 2.6672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      326  
   data-arc span      10390 days (28.45 yr)  
   first obs. used      1993-02-26  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63013  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 03:16:22  

Additional Information
 Earth MOID = 1.0173 au 
 Jupiter MOID = 2.11471 au 
 T_jup = 3.278 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457581.5 (2016-Jul-12.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2463453596905171 5.3531e-08  
q 2.017536746680304 1.4825e-07 au
tp 2457825.642372965806
(2017-Mar-13.14237297)
6.2147e-05 TDB
node 157.0961148442237 2.0901e-05 deg
peri 199.7856499552913 2.4113e-05 deg
i 16.1805623164377 5.4171e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      326  
   data-arc span      10390 days (28.45 yr)  
   first obs. used      1993-02-26  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63013  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 03:16:22  

Additional Information
 Jupiter MOID = 2.11471 au 
 T_jup = 3.278 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.865616353764559E-15 -7.894847220239312E-15 -5.733993551777905E-13 7.513117157193496E-16 -1.895057232550183E-14 2.443294734061912E-15
q -7.894847220239312E-15 2.197873785635812E-14 2.116391131053743E-12 -1.241060069824346E-15 1.47061729777666E-13 -3.704054011241576E-15
tp -5.733993551777905E-13 2.116391131053743E-12 3.862212597827445E-9 -2.165427013978723E-11 7.849370094812823E-10 1.325157515809593E-11
node 7.513117157193496E-16 -1.241060069824346E-15 -2.165427013978723E-11 4.368557155554038E-10 -4.23180251931313E-10 1.692183044531683E-11
peri -1.895057232550183E-14 1.47061729777666E-13 7.849370094812823E-10 -4.23180251931313E-10 5.814181144370035E-10 -1.354112158114858E-11
i 2.443294734061912E-15 -3.704054011241576E-15 1.325157515809593E-11 1.692183044531683E-11 -1.354112158114858E-11 2.934453069824732E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.85   n/a MPO637971  

192676 (1999 RK239)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1999 RK239 = 1993 DW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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