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JPL Small-Body Database Browser
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14922 Ohyama (1994 TA3)
Classification: Main-belt Asteroid          SPK-ID: 2014922
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2093677224230989 3.8512e-08  
a 2.290385283805757 7.5366e-09 au
q 1.810852533463963 9.0657e-08 au
i 5.448143471754555 4.1426e-06 deg
node 9.013010786230867 4.1102e-05 deg
peri 354.9708549690849 4.211e-05 deg
M 41.32967018184983 9.7598e-06 deg
tp 2458455.148110235817
(2018-Dec-02.64811024)
3.4146e-05 TDB
period 1266.080278039225
3.47
6.2491e-06
1.711e-08
d
yr
n .284342159217211 1.4034e-09 deg/d
Q 2.769918034147552 9.1145e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2258  
   data-arc span      13735 days (37.60 yr)  
   first obs. used      1982-02-20  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43781  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:52:50  

Additional Information
 Earth MOID = .808004 au 
 Jupiter MOID = 2.68391 au 
 T_jup = 3.563 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456434.5 (2013-May-22.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .210352919960425 3.859e-08  
q 1.807827767059714 9.0884e-08 au
tp 2455922.153412255121
(2011-Dec-26.65341225)
3.2894e-05 TDB
node 9.050172020314594 4.1044e-05 deg
peri 354.6147351544063 4.2042e-05 deg
i 5.45487230230216 4.1453e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2258  
   data-arc span      13735 days (37.60 yr)  
   first obs. used      1982-02-20  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43781  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:52:50  

Additional Information
 Jupiter MOID = 2.68391 au 
 T_jup = 3.563 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.48919905158027E-15 -3.500855513405642E-15 -4.152221664299603E-14 -3.382795302063883E-15 1.259920908756412E-14 -2.399163056459193E-15
q -3.500855513405642E-15 8.259990400537651E-15 7.269640042994676E-14 7.853512851989849E-15 -3.33409715405736E-14 5.710633796487878E-15
tp -4.152221664299603E-14 7.269640042994676E-14 1.081987739404529E-9 7.24367014685694E-12 3.118318572776867E-10 1.220024447348082E-12
node -3.382795302063883E-15 7.853512851989849E-15 7.24367014685694E-12 1.684629514848287E-9 -1.674297549607921E-9 -4.703042539655804E-12
peri 1.259920908756412E-14 -3.33409715405736E-14 3.118318572776867E-10 -1.674297549607921E-9 1.767569764492097E-9 5.048838751329721E-12
i -2.399163056459193E-15 5.710633796487878E-15 1.220024447348082E-12 -4.703042539655804E-12 5.048838751329721E-12 1.718353625242897E-11

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 14.5   n/a MPO296258  
diameter diameter 2.706 km 0.572 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.392   0.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

14922 Ohyama           Discovered 1994 Oct. 2 by K. Endate and K. Watanabe at Kitami.
Tetsuya Ohyama (b. 1959) is a Japanese amateur astronomer skilled in the making of his own personal observatories. The Apollo 11 mission to the moon in 1969 was instrumental in steering him to his now deep interest in astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-09-28Last Updated: 2015-10-05

[ show close-approach data ]
Alternate Designations
 1994 TA3 = 1982 DF7 = 1987 SR20 = 1987 SZ11 = 1987 UJ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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