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46560 (1991 PZ1)
Classification: Main-belt Asteroid          SPK-ID: 2046560
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2155878844094761 5.2652e-08  
a 2.34560557575297 1.3388e-08 au
q 1.839921432017316 1.2832e-07 au
i 1.721177668774242 4.4298e-06 deg
node 79.58795856387606 0.00019299 deg
peri 165.5674195448495 0.00019382 deg
M 52.01051347471478 2.4317e-05 deg
tp 2458810.930028204817
(2019-Nov-23.43002820)
8.7433e-05 TDB
period 1312.142205237867
3.59
1.1234e-05
3.076e-08
d
yr
n .2743605064778316 2.349e-09 deg/d
Q 2.851289719488624 1.6275e-08 au
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      10101 days (27.66 yr)  
   first obs. used      1991-08-02  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54343  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:38:14  

Additional Information
 Earth MOID = .82666 au 
 Jupiter MOID = 2.17415 au 
 T_jup = 3.529 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455986.5 (2012-Feb-29.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2161824984528946 5.2544e-08  
q 1.838100433137394 1.2777e-07 au
tp 2456187.001853671004
(2012-Sep-16.50185367)
7.2762e-05 TDB
node 79.61399376877161 0.00019279 deg
peri 165.6520857742138 0.00019361 deg
i 1.722175657082659 4.4334e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      10101 days (27.66 yr)  
   first obs. used      1991-08-02  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54343  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:38:14  

Additional Information
 Jupiter MOID = 2.17415 au 
 T_jup = 3.529 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.760884115941452E-15 -6.69592092249958E-15 -2.372128009881909E-12 3.18810317841974E-14 -5.483571268960229E-13 -1.539200137527025E-15
q -6.69592092249958E-15 1.632595775007729E-14 5.979183641645504E-12 -8.08933817985539E-14 1.385436508936064E-12 3.949579846869367E-15
tp -2.372128009881909E-12 5.979183641645504E-12 5.29425092003596E-9 -6.470759464974556E-11 1.338571090208032E-9 3.345550868634264E-12
node 3.18810317841974E-14 -8.08933817985539E-14 -6.470759464974556E-11 3.716631912266045E-8 -3.71646330930404E-8 -1.171448655612388E-10
peri -5.483571268960229E-13 1.385436508936064E-12 1.338571090208032E-9 -3.71646330930404E-8 3.748435955604086E-8 1.178965786153584E-10
i -1.539200137527025E-15 3.949579846869367E-15 3.345550868634264E-12 -1.171448655612388E-10 1.178965786153584E-10 1.965460090775136E-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 15.6   n/a MPO432023  

46560 (1991 PZ1)          Discovered 1991-Aug-02 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 PZ1 = 2001 BW20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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