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415029 (2011 UL21)
Classification: Apollo [NEO, PHA]          SPK-ID: 2415029
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6531703236190488 1.9502e-07  
a 2.122499125319953 3.4059e-08 AU
q .7361456847535714 4.1699e-07 AU
i 34.84751871798932 3.4237e-05 deg
node 275.6088520572232 3.9064e-05 deg
peri 284.7243930708419 3.5581e-05 deg
M 342.7069638006635 1.711e-05 deg
tp 2457054.754836194125
(2015-Feb-01.25483619)
5.4367e-05 JED
period 1129.457014068717
3.09
2.7186e-05
7.443e-08
d
yr
n .3187372299394984 7.672e-09 deg/d
Q 3.508852565886335 5.6305e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      9184 days (25.14 yr)  
   first obs. used      1989-10-29  
   last obs. used      2014-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53869  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 13:12:18  

Additional Information
 Earth MOID = .0208821 AU 
 T_jup = 3.245 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7 mag n/a MPO311355  

415029 (2011 UL21)          Discovered 2011-Oct-17 by CSS at Catalina (703)
Reference: Last Updated: 2014-11-10

[ 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
1915-Oct-30 00:33 < 00:01 Mars 0.0751088641331981 0.0751009856803851 0.0751167437346637 22.7141635397012 22.7139957289241 2420800.522621814 0.291807256647269 597.099820177871 67.6912330689419 50.600409075623 125755.558139781 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1919-Jan-13 19:03 < 00:01 Earth 0.255673033157439 0.255671635466777 0.255674431320323 24.5689309108032 24.5685067359453 2421972.293632792 0.209004708981006 718.969352616834 48.5278207412182 84.8781001255781 714815.399285617 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1922-Jun-01 14:41 < 00:01 Earth 0.430093647538685 0.430079260314972 0.430108034842562 18.5056268563067 18.505292084053 2423207.112129073 0.364866264385754 598.429653892664 59.5928226989328 12.2730491573617 216139.259673454 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1925-Jul-04 20:26 < 00:01 Earth 0.162966295887779 0.162951636205003 0.162980955558972 28.4395003291995 28.4389254230022 2424336.351203470 0.348407839138322 698.934754367299 63.5218145801183 7.63530261043234 57279.1866304518 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1950-Jan-02 08:08 < 00:01 Earth 0.417759632410697 0.417746828281675 0.417772436725632 32.3156039551434 32.3154065879645 2433283.839156867 0.242016753948276 758.645414730039 46.3515699491657 34.4477971028347 723731.899049586 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1953-Jan-18 15:59 < 00:01 Earth 0.363502955997093 0.363491923704839 0.363513988725701 19.8619986045097 19.861629554265 2434396.165750821 0.104164700720074 671.210488067492 58.9966061012038 -48.7577548208198 606140.340398589 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1956-Jun-16 01:43 < 00:01 Earth 0.20492835508986 0.204914208980337 0.204942501273587 21.3781578458582 21.3775496461589 2435640.571660519 0.355777150484051 606.409938661926 64.9366511882511 0.127427432513271 44829.76232089 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1959-Jul-14 15:09 < 00:01 Earth 0.354589065634254 0.354576252122609 0.354601879133191 33.0831448293653 33.0829176955886 2436764.131174810 0.28125562464886 623.206721004675 66.160075234384 0.181675258014276 80689.8853279978 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1984-Jan-05 18:21 < 00:01 Earth 0.36303470915282 0.363026869011212 0.363042549449685 30.204796846491 30.2045538555766 2445705.264589093 0.170957708886117 525.143383907727 47.9922508696838 43.55823755909 734836.311215618 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1987-Jan-19 13:45 < 00:01 Earth 0.419385575571731 0.419377452780968 0.41939369851067 18.9836364486374 18.9833017736254 2446815.073080929 0.0561131354837395 442.495487632752 63.27433787546 -43.567385024941 595874.927905781 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1990-Jun-21 17:27 < 00:01 Earth 0.0968432386356786 0.0968337896635031 0.0968526876751691 23.1794232183009 23.1782362160375 2448064.226858475 0.239880667819316 428.138792738814 66.8592464634908 -12.0939272399899 50554.2570844273 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
1993-Jul-19 06:26 < 00:01 Earth 0.474977856579776 0.474969931758356 0.474985781398842 35.9800228855111 35.9798669738857 2449187.767854567 0.16089107227442 389.989864018971 66.9714598028326 -3.01453166137904 181759.234196162 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2011-Sep-24 02:34 < 00:01 Mars 0.0767590661280162 0.0767570085320418 0.0767611237450537 24.1540691060052 24.1539146916799 2455828.607062679 0.0539124091443927 130.724330054556 66.8924655968041 -47.9563251227668 137434.693231496 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2018-Jan-10 12:15 < 00:01 Earth 0.281030598445405 0.281029215293243 0.281031981602537 26.4425082607854 26.4421497030928 2458129.010458978 0.0666055493865623 118.263037837687 52.0843461640444 68.0039969851252 700402.520585361 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2024-Jun-27 20:15 < 00:01 Earth 0.0443932266358602 0.0443866414061681 0.0443998119222529 25.882208859608 25.8798897901074 2460489.344082279 0.15371721793922 313.388388139568 55.9879510146372 14.9731766311551 33757.8447461419 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2052-Jan-15 00:36 < 00:01 Earth 0.279061066388712 0.279059110249333 0.279063023062397 23.275450982747 23.2750407608583 2470551.525273824 0.133880286046645 596.488938305445 39.7085129135721 -84.2653753227231 943387.871880469 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2055-Jun-06 18:43 < 00:01 Earth 0.345449648533924 0.345438426068789 0.345460871063883 19.5237344962615 19.5233394307643 2471790.279881362 0.263343437960791 473.01258743713 31.5574443718621 12.5835226193675 323207.124369566 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2058-Jul-07 03:59 < 00:01 Earth 0.232815149368384 0.23280319828112 0.232827100446863 30.0315939739963 30.0312128858047 2472916.665686671 0.291396210043846 576.963434471973 38.0520080508725 7.21440809129012 121366.348984226 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2083-Jan-07 06:36 < 00:01 Earth 0.338007335275641 0.337991782821843 0.338022888950974 28.7428869713833 28.74261271426 2481866.774730733 0.356887577779672 1219.57273384022 37.359308004537 51.5459765052686 988380.668499321 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2086-Jan-18 14:05 < 00:01 Earth 0.476476250368892 0.47645506067855 0.476497440880167 18.4172174009623 18.4169137667785 2482974.086990663 0.0842272317344117 1105.03143985939 50.8927508063125 -41.0926416118287 788608.583540268 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2089-Jun-25 03:48 < 00:01 Earth 0.0178232797053191 0.0178166413994709 0.0178299484031579 24.9570093752438 24.9510185821554 2484227.658592280 0.598301482870535 1106.12929456433 30.9847688888994 -74.3245880261743 75463.7482835929 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2107-Aug-24 12:39 00:07 Mars 0.0976872498276239 0.0974075371579714 0.0979669988839414 24.5817129327293 24.5815937105066 2490861.027010725 7.34260654222628 14033.0899205893 72.2653733211987 -12.5128822403051 42897.4266626488 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2117-Jan-11 12:46 00:08 Earth 0.291105835050235 0.290965282228038 0.291247405614821 25.9002958989472 25.899942504531 2494289.032045435 8.00845034622922 25888.6390438724 39.7049100318334 73.6988955698084 966866.255958996 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2120-May-25 15:54 00:17 Earth 0.472943657381566 0.472341244464668 0.473546178474813 18.5963702464058 18.5960672912802 2495519.162400888 16.7204102687908 25858.8757816472 33.2939200041423 15.0250973241628 472376.047431729 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2123-Jul-01 02:53 00:16 Earth 0.0992578938235405 0.0985878663995927 0.0999279225757094 27.0426140444804 27.0416213705825 2496650.620013969 15.7890032562533 31546.2290412791 34.7376337952184 7.9420991745699 54426.5214448994 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2148-Jan-01 07:36 00:10 Earth 0.486446504334261 0.485917678166627 0.486975606317531 33.6041672203759 33.6040042212836 2505600.816740380 10.1272063028335 31492.2883821367 37.6196974315757 34.1616789935369 1030848.06290163 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2151-Jan-18 10:52 00:05 Earth 0.353643139487244 0.353258855187559 0.354028393591867 20.5639424290062 20.563576038165 2506713.952457354 4.66148818765126 28662.2523502547 47.0303447053449 -57.3614824691278 832719.586255471 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2154-Jun-16 20:42 00:16 Earth 0.173378885913159 0.172718192754237 0.174039729441417 21.9425008888365 21.9418005036445 2507959.362481118 16.4303387359438 28687.780040573 28.2067180725303 -2.24939112577086 31962.6076521536 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2157-Jul-14 17:40 00:12 Earth 0.394488303992742 0.393887751148615 0.395088833919136 33.8418858689387 33.841686285294 2509083.236277369 12.4545289216913 29317.6059675203 43.0299395377118 -1.50415828848441 34099.1465954592 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2182-Jan-06 21:43 00:05 Earth 0.36395722944933 0.363748825163534 0.364165835605411 29.2173933908193 29.217142824669 2518025.405178395 5.16526263864361 16326.8799834745 38.6139078450721 51.2155436756343 1026823.74997359 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2185-Jan-18 12:15 < 00:01 Earth 0.457643248960046 0.457401043638966 0.457885580225885 18.7970425720273 18.7967328305611 2519133.010595856 0.157108261771421 13152.3847016537 52.29206045704 -43.2282025641805 771238.907196256 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
2188-Jun-22 07:41 00:07 Earth 0.0537865033616945 0.0535043852192698 0.0540687385947245 24.064401221258 24.0623425710439 2520383.820046390 7.12666287568112 13076.7515797281 31.0495092800271 -14.237212677326 57633.6615776231 T 33 CATAB v2.0c-linF95 2015-Jan-08 13:12:20 2015-Jan-08 13:12
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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