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152864 (1999 XT143)
Classification: Mars-crossing Asteroid          SPK-ID: 2152864
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3612334662922047 4.0196e-08  
a 2.20840084162604 7.0892e-09 au
q 1.410652550642843 9.1434e-08 au
i 2.741472983592006 3.1678e-06 deg
node 100.4840073541937 6.7795e-05 deg
peri 257.1630612689884 6.7987e-05 deg
M 266.9150983527322 6.2919e-06 deg
tp 2459706.450275195449
(2022-May-06.95027520)
2.2178e-05 TDB
period 1198.713186518544
3.28
5.772e-06
1.58e-08
d
yr
n .3003220487175569 1.4461e-09 deg/d
Q 3.006149132609237 9.65e-09 au
  Orbit Determination Parameters
   # obs. used (total)      631  
   data-arc span      7832 days (21.44 yr)  
   first obs. used      1999-12-08  
   last obs. used      2021-05-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57999  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 01:49:04  

Additional Information
 Earth MOID = .409617 au 
 Jupiter MOID = 2.44807 au 
 T_jup = 3.570 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457565.5 (2016-Jun-26.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3621602568319854 4.0331e-08  
q 1.408396092294304 9.1786e-08 au
tp 2457307.424362100483
(2015-Oct-11.92436210)
1.3842e-05 TDB
node 100.5747513203656 6.7863e-05 deg
peri 256.9246720646011 6.805e-05 deg
i 2.741218148516989 3.1677e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      631  
   data-arc span      7832 days (21.44 yr)  
   first obs. used      1999-12-08  
   last obs. used      2021-05-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57999  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 01:49:04  

Additional Information
 Jupiter MOID = 2.44807 au 
 T_jup = 3.570 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.6266070417056E-15 -3.698826450915104E-15 -2.850051610211963E-13 3.287871914414688E-14 -6.927606883666199E-14 -5.806349224157397E-15
q -3.698826450915104E-15 8.424688971485531E-15 6.612918246608072E-13 -7.4007728742456E-14 1.612651547801787E-13 1.339779646690541E-14
tp -2.850051610211963E-13 6.612918246608072E-13 1.915967585535288E-10 -9.963832873707634E-12 7.504234383453313E-11 1.645268651440625E-12
node 3.287871914414688E-14 -7.4007728742456E-14 -9.963832873707634E-12 4.605448624992039E-9 -4.60267415372692E-9 3.953963129578018E-11
peri -6.927606883666199E-14 1.612651547801787E-13 7.504234383453313E-11 -4.60267415372692E-9 4.630754177966842E-9 -3.917652471968402E-11
i -5.806349224157397E-15 1.339779646690541E-14 1.645268651440625E-12 3.953963129578018E-11 -3.917652471968402E-11 1.003447567469005E-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 16.85   n/a E2021B55  
diameter diameter 2.139 km 0.551 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.068   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

152864 (1999 XT143)          Discovered 1999-Dec-08 by Spacewatch at Kitt Peak
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ 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
1910-Sep-19 06:56 < 00:01 Earth 0.409185989112825 0.409185469237232 0.409186509221712 0.49718303412087 0.483908723663686 2418933.789018644 0.487337957467968 543.133271402023 4.09946995175896 -87.0899012752308 337247.46524229 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
1930-Jun-29 19:46 00:03 Mars 0.0547685916991733 0.0547666627741861 0.0547705206372423 3.32312509511199 3.32155172552197 2426157.323909783 3.25184702778032 105.172382921298 11.6350052849602 24.0676736126692 228030.342108304 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
1933-Sep-26 08:17 < 00:01 Earth 0.422733322295987 0.422732091062582 0.422734553541743 0.549261550974465 0.537663735969155 2427341.845438095 0.53000073073552 135.513552636798 8.57129926189504 -71.9022226642942 347186.544971535 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
1943-Jun-23 06:16 00:01 Mars 0.0872895261106314 0.0872849423724343 0.0872941098739205 4.55802665072964 4.55730703361878 2430898.760941613 1.32365417015333 240.219341531692 10.8377425582355 17.9541770258923 317136.598133869 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
1956-Oct-02 06:19 < 00:01 Earth 0.443406712222611 0.443405183365139 0.44340824108462 0.79362023387143 0.786011995634086 2435748.763159802 0.477522780568074 106.125014523986 11.3002953851264 -52.6252381791824 435509.572613031 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
1979-Oct-11 10:39 < 00:01 Earth 0.483819528322636 0.48381831530721 0.483820741339409 1.33870665491165 1.33458651114317 2444157.943876931 0.291893264840783 73.2272177111357 12.0782168620396 -37.7236792755569 555328.663770646 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
2015-Aug-26 15:49 < 00:01 Earth 0.475501540983412 0.475501224960719 0.475501857006809 1.37782855643179 1.3737556201072 2457261.159202114 0.0292241456644545 53.2193440811215 12.3929089915296 -79.9286708250721 693693.698056715 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
2038-Sep-03 22:50 < 00:01 Earth 0.437283610736616 0.437282837279983 0.437284384201277 0.948052718177864 0.941603659708234 2465670.451654557 0.210727887208349 135.633430504142 23.5498257931672 -78.4164831519803 280184.864735768 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
2061-Sep-11 04:46 < 00:01 Earth 0.4184590639018 0.418458281314474 0.418459846489578 0.70075136973999 0.691605207463523 2474078.698429391 0.396613836061886 168.395726471412 30.7663866970574 88.754425366105 195493.978613138 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
2084-Sep-18 04:23 < 00:01 Earth 0.411275540498775 0.411275247909562 0.411275833151904 0.519819992560442 0.507203780679538 2482486.682874716 0.595704432486418 443.104892843667 7.34648901281348 -89.080018804909 410399.13689305 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
2107-Sep-26 16:42 < 00:01 Earth 0.415262542225454 0.415261681802718 0.415263402705811 0.474614124765541 0.460896758017305 2490894.196067372 0.774093512725998 262.569679253387 4.75094362696009 -82.5619658705474 359361.31875368 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
2111-Feb-20 23:35 00:03 Mars 0.0945100937830648 0.0945046476329598 0.094515540007764 4.48262719622369 4.4819513807736 2492137.482546418 2.58447215378656 302.205916814272 12.8307887690123 26.0603461864029 400024.271347059 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
2124-Feb-19 13:21 00:06 Mars 0.0358914868039133 0.0358906627655693 0.0358923110658198 3.18001972053966 3.17751039900995 2496884.055958583 5.50810534365004 152.521451450738 11.213824533247 -74.9185673602393 501642.400871075 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
2130-Oct-01 11:57 00:01 Earth 0.425457693893935 0.425455425074434 0.425459962752227 0.578424166262026 0.567493857749115 2499299.997823346 1.11804411614267 238.029631933272 8.00366468537612 -71.7055067916474 394365.266714356 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
2153-Oct-07 08:50 00:02 Earth 0.44815667088671 0.448150364141166 0.448162977743553 0.854716471003749 0.84773191937459 2507706.867716888 2.16662027822704 474.881292622242 10.7256299341816 -54.5369401465186 498664.480191829 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
2176-Oct-14 04:25 00:03 Earth 0.481648285174358 0.481637139696463 0.481659430837907 1.33422553227655 1.33007284263846 2516114.684306178 3.01724864541609 729.592752476337 11.7009222930024 -42.5155414327532 647451.598600332 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 01:49:06 2021-Jul-09 01:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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