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JPL Small-Body Database Browser
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2061 Anza (1960 UA)
Classification: Amor [NEO]          SPK-ID: 2002061
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 159 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5357481029548782 2.4547e-08  
a 2.264330203907595 1.1026e-09 au
q 1.051219592700668 5.5652e-08 au
i 3.799037150446937 3.041e-06 deg
node 207.3795930385512 5.1777e-05 deg
peri 157.0250735591936 5.1864e-05 deg
M 180.5486414787968 2.038e-06 deg
tp 2459620.872182854016
(2022-Feb-10.37218285)
6.7178e-06 TDB
period 1244.537726924243
3.41
9.0906e-07
2.489e-09
d
yr
n .2892640313039813 2.1129e-10 deg/d
Q 3.477440815114522 1.6934e-09 au
  Orbit Determination Parameters
   # obs. used (total)      932  
   data-arc span      21731 days (59.50 yr)  
   first obs. used      1960-10-22  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45996  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-22 07:46:24  

Additional Information
 Earth MOID = .0560308 au 
 Jupiter MOID = 1.99374 au 
 T_jup = 3.410 
[ show covariance matrix ]

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 16.56   n/a MPO452189  
diameter diameter 2.6 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed dark albedo (0.06)
rotation period rot_per 6.712 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2018) Minor Planet Bull. 45, 366-379.]
B-V BV 0.825   0.092 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=3.25, mean=7.04, max.=10.83) deg.
U-B UB 0.350   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=3.25 deg.
Tholen spectral type spec_T TCG:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

2061 Anza (1960 UA)          Discovered 1960-Oct-22 by Giclas, H. L. at Flagstaff (LO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1926-Aug-18 01:35 < 00:01 Earth 0.222317720848687 0.222314906917023 0.22232053478131 12.4569359239434 12.455973771655 2424745.565775082 0.317767190132052 142.183658526037 7.72734549042749 -9.33121842759381 593819.262320703 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
1943-Sep-15 21:04 < 00:01 Earth 0.068589472354825 0.0685888307209983 0.0685901139886596 6.89512143983293 6.88948518639264 2430983.378030294 0.336938961533752 32.0280732618207 7.83360615926695 3.04948664210528 286632.918530698 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
1945-May-15 22:55 < 00:01 Jupiter 1.99536147231732 1.99536120666546 1.99536173796997 1.68398757772759 1.40954695229544 2431591.454613606 0.182485445323733 84.2356950697651 38.2248621257127 -67.5580173550814 4673265.82094574 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
1960-Oct-07 15:15 < 00:01 Earth 0.0634090242474654 0.0634088657784825 0.0634091827164482 7.27769884535806 7.27192268042153 2437215.135140362 0.0892005757016936 10.5238972819262 7.89967487713526 -88.1925495148595 1195070.63932578 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
1969-Apr-01 21:18 < 00:01 Jupiter 1.9771347960679 1.97713459259032 1.97713499954615 1.72432240337505 1.45480911936833 2440313.387313285 0.095076702494988 75.3989417205178 34.2869619452865 -69.9739235629761 4863416.80195489 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
1977-Nov-06 03:22 < 00:01 Earth 0.316265477068825 0.316265226360927 0.316265727776722 15.6062905438348 15.6057506996935 2443453.640332273 0.0522500849197025 12.5841286533261 9.58897034829114 -10.1784610407033 3307905.70617325 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
1993-Mar-01 16:59 < 00:01 Jupiter 1.9865463877689 1.98654619762792 1.98654657791022 1.73123866232998 1.4643867134835 2449048.207504507 0.0848560734571431 74.9821620144661 33.231850093666 -72.5731492298139 5029679.58120601 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
2001-Aug-01 20:57 < 00:01 Earth 0.478345923075062 0.478345651068631 0.478346195081493 20.1778696025158 20.1775935460399 2452123.373090540 0.0528080636714685 13.7765998249758 8.54804996253977 12.9009064976217 5082749.59998943 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
2018-Aug-23 05:48 < 00:01 Earth 0.200600031532679 0.20059978692326 0.200600276142098 11.5081077762544 11.5069535280187 2458353.741481304 0.0598024639899969 12.2309152417942 8.02101455021061 5.63630704978602 2222696.23773003 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
2035-Sep-27 13:57 < 00:01 Earth 0.053685372447604 0.0536852028907842 0.0536855420044238 6.65999201759277 6.65253567493671 2464598.081523368 0.0812854494455385 9.61445212945314 8.44184984079008 83.5161692916246 1061025.22282666 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
2052-Nov-02 13:38 < 00:01 Earth 0.251485539056108 0.251483948049606 0.251487130062638 13.6185319014417 13.6177538981178 2470844.068357685 0.13368449168475 79.4556179335796 9.52501106497164 -3.21533211652895 431609.907296977 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
2076-Aug-02 13:34 < 00:01 Earth 0.487389644728879 0.487387213096469 0.487392076361484 20.3925097923142 20.3922417099566 2479518.065365280 0.222634888157194 122.163648595483 9.42066247533878 -7.01992294422225 965041.841686085 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
2093-Aug-27 14:28 < 00:01 Earth 0.179396343054087 0.179393855672538 0.179398830436625 10.5614090021011 10.5600026119176 2485752.103063759 0.432104867242837 125.813273499217 8.45096566087682 -9.71865827437047 444137.466582414 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
2110-Oct-11 14:55 < 00:01 Earth 0.0677513001763535 0.0677503053002652 0.0677522950609953 7.27931323524512 7.27390861020755 2492005.121730282 0.466949050566455 62.8627575325605 8.93179680952766 -38.3859362122239 627648.354288186 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
2151-Sep-12 04:58 < 00:01 Earth 0.0931197185155634 0.0931180157384029 0.0931214212929463 7.72756292698157 7.72385925736452 2506950.706865443 0.648723630271308 85.217702059876 7.79207124818243 -5.1646554341996 175752.610608802 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
2168-Oct-27 14:47 < 00:01 Earth 0.175052343166665 0.175051036186262 0.175053650147276 10.7463556406778 10.7449391561257 2513206.116113166 0.156940365027931 65.8755709116613 9.34596752125447 -8.50616198557683 460917.917851134 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
2185-Nov-17 23:02 < 00:01 Earth 0.480913094863345 0.480912315113258 0.480913874613433 20.1679169833751 20.1676422650266 2519436.459490379 0.0836499624368197 39.0149671074693 9.10080940300749 4.86089466961397 1698796.25461688 T 159 CATAB v2.0f-lin.ifort 2020-Apr-22 07:46:44 2020-Apr-22 07:47
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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