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85501 (1997 TP23)
Classification: Main-belt Asteroid          SPK-ID: 2085501
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .2090408750309413 4.1156e-08  
a 2.408674106375023 1.0867e-08 au
q 1.905162763514018 9.5936e-08 au
i 5.791660879973032 4.8183e-06 deg
node 220.4774790642207 4.6658e-05 deg
peri 44.65013010017794 4.8517e-05 deg
M 122.5731284097644 1.3729e-05 deg
tp 2458535.601373990703
(2019-Feb-21.10137399)
5.122e-05 TDB
period 1365.417588134384
3.74
9.2403e-06
2.53e-08
d
yr
n .2636556047969764 1.7843e-09 deg/d
Q 2.912185449236028 1.3139e-08 au
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      8142 days (22.29 yr)  
   first obs. used      1997-10-09  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55312  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:33:13  

Additional Information
 Earth MOID = .894791 au 
 Jupiter MOID = 2.17779 au 
 T_jup = 3.484 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457222.5 (2015-Jul-19.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .208691486975486 4.1083e-08  
q 1.906296767830199 9.5753e-08 au
tp 2457170.543739825628
(2015-May-28.04373983)
5.0034e-05 TDB
node 220.4862518848888 4.6652e-05 deg
peri 44.77641937376771 4.8521e-05 deg
i 5.791215381531693 4.8192e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      8142 days (22.29 yr)  
   first obs. used      1997-10-09  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55312  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:33:13  

Additional Information
 Jupiter MOID = 2.17779 au 
 T_jup = 3.484 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.687787647475738E-15 -3.920433609449144E-15 2.01379994518545E-13 -8.324514721259741E-15 -2.983397982958594E-15 -1.348236904879158E-15
q -3.920433609449144E-15 9.168603524563258E-15 -4.63317922023934E-13 1.905877124924543E-14 7.834330113371356E-15 3.234399567401954E-15
tp 2.01379994518545E-13 -4.63317922023934E-13 2.503445762740165E-9 -1.020609019951046E-11 6.846994556888544E-10 -5.50615579977317E-12
node -8.324514721259741E-15 1.905877124924543E-14 -1.020609019951046E-11 2.176402586865252E-9 -2.167719965402666E-9 -5.967465949645671E-11
peri -2.983397982958594E-15 7.834330113371356E-15 6.846994556888544E-10 -2.167719965402666E-9 2.354314298628004E-9 5.800449026837807E-11
i -1.348236904879158E-15 3.234399567401954E-15 -5.50615579977317E-12 -5.967465949645671E-11 5.800449026837807E-11 2.322499174147832E-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 15.9   n/a MPO263968  
diameter diameter 4.257 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85501 (1997 TP23)          Discovered 1997-Oct-09 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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