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78262 (2002 PN21)
Classification: Main-belt Asteroid          SPK-ID: 2078262
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07827117093352369 3.8926e-08  
a 2.719357239108092 1.7695e-08 au
q 2.506509963816547 1.14e-07 au
i 3.934163836600189 4.4482e-06 deg
node 202.2330423401644 5.921e-05 deg
peri 223.50228837975 6.8795e-05 deg
M 248.8112180269063 3.7325e-05 deg
tp 2459506.390233355745
(2021-Oct-18.89023336)
0.00017248 TDB
period 1637.939374604705
4.48
1.5987e-05
4.377e-08
d
yr
n .2197883545518169 2.1453e-09 deg/d
Q 2.932204514399636 1.908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      7584 days (20.76 yr)  
   first obs. used      2000-02-02  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57074  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:12:32  

Additional Information
 Earth MOID = 1.5216 au 
 Jupiter MOID = 2.29962 au 
 T_jup = 3.351 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457730.5 (2016-Dec-08.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08020009425718941 3.9466e-08  
q 2.499833993208745 1.1595e-07 au
tp 2457863.406895281684
(2017-Apr-19.90689528)
0.00015836 TDB
node 202.3930764303466 5.907e-05 deg
peri 222.1982325994822 6.8098e-05 deg
i 3.939226696420899 4.4532e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      7584 days (20.76 yr)  
   first obs. used      2000-02-02  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57074  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:12:32  

Additional Information
 Jupiter MOID = 2.29962 au 
 T_jup = 3.351 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.557549606531656E-15 -4.540519372315323E-15 -2.235711473212174E-12 -4.253205119728706E-15 -4.330327195640484E-13 -6.123981669204774E-16
q -4.540519372315323E-15 1.344382299139839E-14 7.36992490250847E-12 1.30430172896292E-14 1.442756808002576E-12 2.168698463459032E-15
tp -2.235711473212174E-12 7.36992490250847E-12 2.507736732757473E-8 3.246303719272324E-11 5.381201464875757E-9 4.983723968929734E-12
node -4.253205119728706E-15 1.30430172896292E-14 3.246303719272324E-11 3.489208247817692E-9 -3.473611809653864E-9 -6.368647339299871E-11
peri -4.330327195640484E-13 1.442756808002576E-12 5.381201464875757E-9 -3.473611809653864E-9 4.637281995757844E-9 6.460202899812976E-11
i -6.123981669204774E-16 2.168698463459032E-15 4.983723968929734E-12 -6.368647339299871E-11 6.460202899812976E-11 1.983111707420246E-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 15.5   n/a MPO474673  

78262 (2002 PN21)          Discovered 2002-Aug-06 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2002 PN21 = 2000 CT13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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