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85081 (2153 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2085081
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1387151085173528 6.1594e-08  
a 3.152262668265187 2.1026e-08 au
q 2.714996210161582 1.9289e-07 au
i 4.584070015850372 5.7781e-06 deg
node 357.7593386328583 5.8134e-05 deg
peri 347.4161500136066 6.0685e-05 deg
M 136.7708545691461 1.9465e-05 deg
tp 2458223.854044940124
(2018-Apr-15.35404494)
0.00010807 TDB
period 2044.240673221823
5.60
2.0453e-05
5.6e-08
d
yr
n .1761045089826055 1.762e-09 deg/d
Q 3.589529126368793 2.3943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      763  
   data-arc span      17039 days (46.65 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51509  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:02:09  

Additional Information
 Earth MOID = 1.70799 au 
 Jupiter MOID = 1.82023 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457081.5 (2015-Feb-28.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1348869276269709 6.0743e-08  
q 2.733994908906082 1.8855e-07 au
tp 2456170.249050948530
(2012-Aug-30.74905095)
0.00010842 TDB
node 357.8186005959824 5.819e-05 deg
peri 346.5047904673159 6.0944e-05 deg
i 4.580444092925806 5.7654e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      763  
   data-arc span      17039 days (46.65 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51509  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:02:09  

Additional Information
 Jupiter MOID = 1.82023 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.689675357291439E-15 -1.139852214630279E-14 2.318924483747827E-12 8.06858597073832E-15 2.693183238458858E-13 -1.313927181852217E-15
q -1.139852214630279E-14 3.555096413973478E-14 -7.115045381033376E-12 -3.538598934206978E-14 -7.940458933027395E-13 2.937036988347888E-15
tp 2.318924483747827E-12 -7.115045381033376E-12 1.175404739289765E-8 4.24815799278427E-12 1.970187018254291E-9 -5.29595496964257E-12
node 8.06858597073832E-15 -3.538598934206978E-14 4.24815799278427E-12 3.386133189758482E-9 -3.375495900855745E-9 2.528999134669246E-11
peri 2.693183238458858E-13 -7.940458933027395E-13 1.970187018254291E-9 -3.375495900855745E-9 3.714182952292204E-9 -2.61891981035031E-11
i -1.313927181852217E-15 2.937036988347888E-15 -5.29595496964257E-12 2.528999134669246E-11 -2.61891981035031E-11 3.323952805992523E-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 14.6   n/a MPO325049  
diameter diameter 5.552 km 0.772 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85081 (2153 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ 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
1909-May-05 13:14 00:03 Jupiter 1.85419829670651 1.85419733596586 1.85419925744832 2.48528908504456 2.29413058858085 2418432.051611823 3.13873330996722 158.514035527414 23.4148080486818 -82.9376978677079 1704150.70050688 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:11 2020-Nov-12 21:02
1919-Nov-09 13:59 00:03 Jupiter 1.80895116716535 1.80895062879743 1.80895170553317 2.37408878277898 2.16790645772891 2422272.082325273 2.87485441783509 73.5441973864181 13.0175193670679 -84.621358357474 2283946.3353789 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:11 2020-Nov-12 21:02
1930-Apr-28 11:08 00:03 Jupiter 1.94204901760579 1.94204817117253 1.94204986403882 3.12229046507515 2.97932877945177 2426094.963574050 2.57755337668702 53.3381531484194 19.9963927684106 -70.5096276957682 1437910.58297715 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:11 2020-Nov-12 21:02
2004-Apr-19 11:29 < 00:01 Jupiter 1.85338768238995 1.85338705640102 1.85338830837877 2.47508028016215 2.28297965879718 2453114.978486628 0.448346222398893 80.9330050132513 19.1249169645045 88.1138164071027 1994187.03543467 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:11 2020-Nov-12 21:02
2014-Oct-25 10:20 < 00:01 Jupiter 1.81895731335505 1.81895682983645 1.81895779687345 2.42879994487774 2.22884311624948 2456955.930510837 0.244648449214849 68.2041553819344 11.3498477133157 -82.9190681356569 2406084.05537396 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:11 2020-Nov-12 21:02
2025-Apr-15 17:18 < 00:01 Jupiter 1.96122668057119 1.96122619210532 1.96122716903706 3.19348459991473 3.05525380221914 2460781.220800526 0.393015855622749 49.8176290898286 15.7005216777137 -77.644108982072 3179594.72433246 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:11 2020-Nov-12 21:02
2099-Apr-06 01:13 00:02 Jupiter 1.84988237945662 1.84988171070561 1.84988304820753 2.45521087773319 2.26104007358464 2487799.550407774 2.3896101144488 138.353362959873 20.4770027906632 -86.8511862015874 1887127.87155113 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:11 2020-Nov-12 21:02
2109-Oct-11 22:58 00:03 Jupiter 1.82238719078151 1.82238662555798 1.82238775600495 2.46608697462576 2.26980401431946 2491640.456875239 2.80554539745596 72.6258336157785 15.1052081269082 -86.0812729853558 2280410.45602881 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:11 2020-Nov-12 21:02
2120-Apr-04 06:04 00:03 Jupiter 1.97113809436399 1.97113720781799 1.97113898090989 3.24567520527153 3.11046342255619 2495467.752837659 3.19292820261622 58.8132226689924 21.6245089373416 -68.4523032957786 1525301.88875552 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:11 2020-Nov-12 21:02
2194-Mar-23 01:42 00:05 Jupiter 1.85450750279528 1.8545065576079 1.85450844798855 2.45144708498614 2.257458407741 2522483.570492038 5.14650343144228 263.370320997875 21.7749943099671 -84.0039699613922 1841395.3329148 T 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:02:11 2020-Nov-12 21:02

Alternate Designations
 2153 T-2 = 2001 RA48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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