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117867 (2127 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117867
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .168491996902065 4.3303e-08  
a 3.055172602357211 2.1499e-08 au
q 2.540400469705566 1.3306e-07 au
i 2.53310949440459 5.0722e-06 deg
node 314.5218558773308 0.00011776 deg
peri 30.71068312926416 0.00011879 deg
M 125.8951745543256 1.5568e-05 deg
tp 2458518.383371798689
(2019-Feb-03.88337180)
8.3306e-05 TDB
period 1950.527389328242
5.34
2.0588e-05
5.637e-08
d
yr
n .1845654677650967 1.9481e-09 deg/d
Q 3.569944735008856 2.5121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      434  
   data-arc span      22022 days (60.29 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51566  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:18:10  

Additional Information
 Earth MOID = 1.53165 au 
 Jupiter MOID = 1.84739 au 
 T_jup = 3.212 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457159.5 (2015-May-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1707789000191455 4.4184e-08  
q 2.531184291949555 1.3602e-07 au
tp 2456555.453018377528
(2013-Sep-19.95301838)
7.9188e-05 TDB
node 315.1535177497918 0.00011628 deg
peri 28.11829242414414 0.00011731 deg
i 2.556004265013267 5.0953e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      434  
   data-arc span      22022 days (60.29 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51566  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:18:10  

Additional Information
 Jupiter MOID = 1.84739 au 
 T_jup = 3.212 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.95222403309845E-15 -5.959656417009002E-15 -1.718420635228589E-13 3.203843796658178E-15 -4.474600439062053E-14 -3.529622019768674E-16
q -5.959656417009002E-15 1.850189088373748E-14 4.502000067414058E-13 -1.911138470010546E-14 1.53279534125274E-13 1.627062502875295E-15
tp -1.718420635228589E-13 4.502000067414058E-13 6.270753231437641E-9 -1.660185900556967E-11 1.269314643097543E-9 5.145328380007859E-13
node 3.203843796658178E-15 -1.911138470010546E-14 -1.660185900556967E-11 1.352022215534469E-8 -1.350765394241386E-8 -2.928660974469862E-11
peri -4.474600439062053E-14 1.53279534125274E-13 1.269314643097543E-9 -1.350765394241386E-8 1.376048843446383E-8 2.930559519947858E-11
i -3.529622019768674E-16 1.627062502875295E-15 5.145328380007859E-13 -2.928660974469862E-11 2.930559519947858E-11 2.596223433449098E-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 15.60   n/a E2021B55  

117867 (2127 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
 2127 P-L = 2003 WD79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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