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312004 (2007 PW27)
Classification: Mars-crossing Asteroid          SPK-ID: 2312004
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2945462314152584 4.0748e-08  
a 2.280056230608264 1.9749e-08 au
q 1.608474260467721 9.2609e-08 au
i 23.05906734448979 6.2688e-06 deg
node 125.1909665820451 1.6135e-05 deg
peri 294.3683426040022 2.1629e-05 deg
M 193.5520088189723 1.7053e-05 deg
tp 2459581.923820809617
(2022-Jan-02.42382081)
6.4874e-05 TDB
period 1257.525392804623
3.44
1.6338e-05
4.473e-08
d
yr
n .2862765253567582 3.7194e-09 deg/d
Q 2.951638200748808 2.5566e-08 au
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      5676 days (15.54 yr)  
   first obs. used      2004-10-07  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56997  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:25:20  

Additional Information
 Earth MOID = .736099 au 
 Jupiter MOID = 2.58642 au 
 T_jup = 3.446 
[ 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 15.9   n/a MPO476401  

312004 (2007 PW27)          Discovered 2007-Aug-14 by Siding Spring Survey at Siding Spring
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2007 PW27 = 2009 EP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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