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154754 (2004 PO9)
Classification: Main-belt Asteroid          SPK-ID: 2154754
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1735197877452381 5.1167e-08  
a 2.683051231795324 2.481e-08 au
q 2.2174887515446 1.3237e-07 au
i 11.92515224893831 5.3079e-06 deg
node 149.4855962322092 2.4674e-05 deg
peri 138.7557881098517 3.1838e-05 deg
M 229.906518018424 2.7719e-05 deg
tp 2459580.589376528015
(2022-Jan-01.08937653)
0.00012964 TDB
period 1605.247029821682
4.39
2.2265e-05
6.096e-08
d
yr
n .2242645482670604 3.1106e-09 deg/d
Q 3.148613712046048 2.9115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      7623 days (20.87 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55815  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:34:10  

Additional Information
 Earth MOID = 1.21657 au 
 Jupiter MOID = 2.13629 au 
 T_jup = 3.323 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457136.5 (2015-Apr-24.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1751460372222138 5.1367e-08  
q 2.212108315256914 1.3312e-07 au
tp 2456368.350458810102
(2013-Mar-16.85045881)
9.8711e-05 TDB
node 149.5354538594748 2.4658e-05 deg
peri 138.3933960606812 3.1702e-05 deg
i 11.93060621511527 5.3135e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      7623 days (20.87 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55815  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:34:10  

Additional Information
 Jupiter MOID = 2.13629 au 
 T_jup = 3.323 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.638605915281074E-15 -6.765489045460028E-15 1.107091295717008E-12 5.329776219027342E-15 2.293422748951852E-13 4.839241975476097E-15
q -6.765489045460028E-15 1.771981497499772E-14 -1.864733186968525E-12 -1.330074564690881E-14 -3.703388450351066E-13 -1.27624462180237E-14
tp 1.107091295717008E-12 -1.864733186968525E-12 9.743947916313354E-9 -1.143385888086688E-11 1.996395383014011E-9 -2.226078882342704E-12
node 5.329776219027342E-15 -1.330074564690881E-14 -1.143385888086688E-11 6.080062041674345E-10 -5.96712833784504E-10 -2.291463299679715E-11
peri 2.293422748951852E-13 -3.703388450351066E-13 1.996395383014011E-9 -5.96712833784504E-10 1.005037399020041E-9 2.194228649824268E-11
i 4.839241975476097E-15 -1.27624462180237E-14 -2.226078882342704E-12 -2.291463299679715E-11 2.194228649824268E-11 2.823374101299291E-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 16.0   n/a MPO459713  
diameter diameter 4.282 km 0.275 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154754 (2004 PO9)          Discovered 2004-Aug-06 by CINEOS at Campo Imperatore
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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