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11961 (1994 PO)
Classification: Main-belt Asteroid          SPK-ID: 2011961
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1027807645634067 7.0435e-08  
a 2.573196261659989 1.9733e-08 au
q 2.308721182514875 1.7556e-07 au
i 12.34651633020138 7.4513e-06 deg
node 317.176275738491 2.9492e-05 deg
peri 243.290481063015 4.7068e-05 deg
M 172.0451989467442 4.0802e-05 deg
tp 2456679.976995040427
(2014-Jan-22.47699504)
0.0001689 JED
period 1507.675211940896
4.13
1.7342e-05
4.748e-08
d
yr
n .2387782177147798 2.7466e-09 deg/d
Q 2.837671340805103 2.1761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1058  
   data-arc span      10658 days (29.18 yr)  
   first obs. used      1986-09-29  
   last obs. used      2015-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47646  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:19:13  

Additional Information
 Earth MOID = 1.33796 au 
 Jupiter MOID = 2.23702 au 
 T_jup = 3.389 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1 mag n/a MPO347619  

11961 (1994 PO)          Discovered 1994-Aug-03 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 PO = 1986 SF1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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