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85500 (1997 TP13)
Classification: Main-belt Asteroid          SPK-ID: 2085500
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .195890219702245 3.2152e-08  
a 2.369961234772019 7.4508e-09 au
q 1.905709007806724 7.7334e-08 au
i 3.577434552864107 4.2143e-06 deg
node 356.982597746565 5.0701e-05 deg
peri 42.57342705260557 5.1929e-05 deg
M 47.39968756640133 9.6538e-06 deg
tp 2458825.037921890531
(2019-Dec-07.53792189)
3.5766e-05 TDB
period 1332.632161993054
3.65
6.2844e-06
1.721e-08
d
yr
n .2701420619037082 1.2739e-09 deg/d
Q 2.834213461737313 8.9103e-09 au
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      10738 days (29.40 yr)  
   first obs. used      1990-11-11  
   last obs. used      2020-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48581  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:46  

Additional Information
 Earth MOID = .915209 au 
 Jupiter MOID = 2.59286 au 
 T_jup = 3.517 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457187.5 (2015-Jun-14.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1960555740058516 3.226e-08  
q 1.905304558246356 7.7596e-08 au
tp 2457489.699513714462
(2016-Apr-11.19951371)
3.6434e-05 TDB
node 357.1236486818405 5.0538e-05 deg
peri 41.8673657984757 5.1775e-05 deg
i 3.584778934079146 4.2195e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      10738 days (29.40 yr)  
   first obs. used      1990-11-11  
   last obs. used      2020-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48581  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:46  

Additional Information
 Jupiter MOID = 2.59286 au 
 T_jup = 3.517 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.040677138991821E-15 -2.496038350444111E-15 -2.98666834368405E-13 1.369965957576762E-14 -8.048673518231051E-14 -1.186483768274587E-15
q -2.496038350444111E-15 6.021153396033107E-15 6.675878211829366E-13 -3.355998956737337E-14 1.776637577214426E-13 2.991306978394573E-15
tp -2.98666834368405E-13 6.675878211829366E-13 1.327450930036209E-9 -1.030418794000057E-11 4.177059492627751E-10 1.363027889326218E-12
node 1.369965957576762E-14 -3.355998956737337E-14 -1.030418794000057E-11 2.55411369152889E-9 -2.551155034930634E-9 -1.608734650273067E-11
peri -8.048673518231051E-14 1.776637577214426E-13 4.177059492627751E-10 -2.551155034930634E-9 2.680677645504656E-9 1.641534849482088E-11
i -1.186483768274587E-15 2.991306978394573E-15 1.363027889326218E-12 -1.608734650273067E-11 1.641534849482088E-11 1.780441175669273E-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 15.8   n/a MPO299497  

85500 (1997 TP13)          Discovered 1997-Oct-03 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1984-Aug-06 00:44 00:03 Amphi 0.0246436113222094 0.0246405840695431 0.0246466387238626 1.97948700559754 1.97948688775122 2445918.530530356 2.63835644642195 181.060049251729 48.1257120183286 -35.1613550622149 47051.7066086417 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:48 2020-Nov-12 21:00

Alternate Designations
 1997 TP13 = 1999 EP14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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