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JPL Small-Body Database Browser
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117897 (2845 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117897
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1305583561786202 5.8572e-08  
a 3.119492053977759 3.3042e-08 au
q 2.712216299298155 1.8323e-07 au
i 2.795498955451936 6.695e-06 deg
node 30.10324572342398 0.00013503 deg
peri 2.459809384464358 0.00013745 deg
M 231.0958827241178 2.5016e-05 deg
tp 2459321.090514352552
(2021-Apr-16.59051435)
0.00014232 TDB
period 2012.446077356246
5.51
3.1974e-05
8.754e-08
d
yr
n .178886780645041 2.8422e-09 deg/d
Q 3.526767808657362 3.7356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      21030 days (57.58 yr)  
   first obs. used      1960-09-24  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57966  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:24:14  

Additional Information
 Earth MOID = 1.71755 au 
 Jupiter MOID = 1.90653 au 
 T_jup = 3.202 
[ 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 15.6   n/a MPO449689  

117897 (2845 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2845 P-L = 2004 TH175 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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