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19877 (9086 P-L)
Classification: Mars-crossing Asteroid          SPK-ID: 2019877
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3104684463655731 5.39e-08  
a 2.230857425041247 7.0136e-09 au
q 1.538246586225588 1.2022e-07 au
i 4.862576296368665 5.466e-06 deg
node 214.3725422330834 5.4316e-05 deg
peri 158.747582973229 5.4714e-05 deg
M 322.7303415267014 9.816e-06 deg
tp 2459126.496668498997
(2020-Oct-03.99666850)
3.3652e-05 TDB
period 1217.043635968273
3.33
5.7394e-06
1.571e-08
d
yr
n .2957987613267343 1.3949e-09 deg/d
Q 2.923468263856906 9.191e-09 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      21774 days (59.61 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58322  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:37:13  

Additional Information
 Earth MOID = .540414 au 
 Jupiter MOID = 2.54814 au 
 T_jup = 3.573 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457326.5 (2015-Oct-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3109833146655662 5.3758e-08  
q 1.53672585945283 1.1987e-07 au
tp 2457910.584450102311
(2017-Jun-06.08445010)
2.9407e-05 TDB
node 214.4049240392283 5.4282e-05 deg
peri 158.8539865366716 5.4679e-05 deg
i 4.86444470367977 5.4693e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      21774 days (59.61 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58322  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:37:13  

Additional Information
 Jupiter MOID = 2.54814 au 
 T_jup = 3.573 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.889888881691566E-15 -6.438783750745367E-15 -6.468077033166789E-14 -1.84735946008149E-14 -5.068799924637577E-14 4.494430828020712E-16
q -6.438783750745367E-15 1.436801133724823E-14 2.394528646802355E-13 4.206524583260702E-14 1.291203698254826E-13 -1.140688813655632E-15
tp -6.468077033166789E-14 2.394528646802355E-13 8.647657328383114E-10 4.440520350837817E-12 2.066744508558527E-10 -1.848260994147583E-12
node -1.84735946008149E-14 4.206524583260702E-14 4.440520350837817E-12 2.946508639000892E-9 -2.934144483387967E-9 -7.667813303147032E-11
peri -5.068799924637577E-14 1.291203698254826E-13 2.066744508558527E-10 -2.934144483387967E-9 2.989750544563284E-9 7.604421508682488E-11
i 4.494430828020712E-16 -1.140688813655632E-15 -1.848260994147583E-12 -7.667813303147032E-11 7.604421508682488E-11 2.991378585309197E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO435884  

19877 (9086 P-L)          Discovered 1960-Oct-17 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 9086 P-L = 1980 RM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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