Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
1323 Tugela (1934 LD)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001323
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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1481276626835592 3.7586e-08  
a 3.228837960219198 1.4601e-08 au
q 2.750557739987977 1.2063e-07 au
i 18.78503923218908 4.8854e-06 deg
node 45.23438577354511 1.0531e-05 deg
peri 136.4256465644882 1.8445e-05 deg
M 44.02794449953759 1.3708e-05 deg
tp 2458741.324639029033
(2019-Sep-14.82463903)
8.0969e-05 TDB
period 2119.179784796177
5.80
1.4374e-05
3.935e-08
d
yr
n .1698770451581222 1.1523e-09 deg/d
Q 3.707118180450419 1.6764e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2810  
   data-arc span      40878 days (111.92 yr)  
   first obs. used      1908-10-27  
   last obs. used      2020-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35722  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:20:11  

Additional Information
 Earth MOID = 1.77977 au 
 Jupiter MOID = 1.35883 au 
 T_jup = 3.087 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456691.5 (2014-Feb-03.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .148319622362086 3.7404e-08  
q 2.749434702930342 1.2e-07 au
tp 2456617.096873839920
(2013-Nov-20.59687384)
8.4661e-05 TDB
node 45.26870085322959 1.053e-05 deg
peri 135.7222967345692 1.8485e-05 deg
i 18.78804718433147 4.886e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2810  
   data-arc span      40878 days (111.92 yr)  
   first obs. used      1908-10-27  
   last obs. used      2020-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35722  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:20:11  

Additional Information
 Jupiter MOID = 1.35883 au 
 T_jup = 3.087 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.399079843670925E-15 -4.464491992769301E-15 1.075116885848062E-12 -3.670417726352695E-15 2.066635629773083E-13 -9.855070020491367E-16
q -4.464491992769301E-15 1.439959764189514E-14 -3.799740429852361E-12 5.522205974758374E-15 -7.227259339033848E-13 7.123302822356376E-16
tp 1.075116885848062E-12 -3.799740429852361E-12 7.167400439397329E-9 -1.458024598791793E-11 1.295380910127898E-9 -1.634538660616177E-12
node -3.670417726352695E-15 5.522205974758374E-15 -1.458024598791793E-11 1.108772134242917E-10 -1.081793095431714E-10 -2.483814283479481E-12
peri 2.066635629773083E-13 -7.227259339033848E-13 1.295380910127898E-9 -1.081793095431714E-10 3.416999455749033E-10 1.638206757692069E-12
i -9.855070020491367E-16 7.123302822356376E-16 -1.634538660616177E-12 -2.483814283479481E-12 1.638206757692069E-12 2.387334925091041E-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 9.9   n/a MPO302067  
diameter diameter 78.295 km 0.511 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 19.50 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2007) Minor Planet Bull. 34, 72-77.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.018   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Xc   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1323 Tugela (1934 LD)          Discovered 1934-May-19 by Jackson, C. at Johannesburg (UO)
Prediscovery observations exist as early as May 8. The May 19 discovery date quoted by some authorities in in error.
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
1988-Nov-03 06:28 < 00:01 Jupiter 1.75137977427996 1.75137888061887 1.75138066794943 4.75438443787526 4.65154901963231 2447468.769203111 0.638055791356506 226.471169724835 19.7732346794274 -79.8568793396675 3390667.16509383 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:20:18 2020-Nov-13 04:20
2000-Feb-01 18:40 < 00:01 Jupiter 1.42822338406872 1.42822282652383 1.42822394161522 4.63124332043027 4.5013658143939 2451576.277720452 0.353273888232816 95.9785793501594 11.7401987112886 -75.0567242103525 3155993.64414142 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:20:18 2020-Nov-13 04:20
2011-Jun-26 05:30 < 00:01 Jupiter 1.35230699126791 1.35230653007073 1.35230745246533 4.52531292798118 4.38471773941153 2455738.729166002 0.245746183230751 62.1258928276706 16.8015181125582 -76.2808638235958 2921518.78447134 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:20:18 2020-Nov-13 04:20
2022-Nov-17 15:29 < 00:01 Jupiter 1.49495637114984 1.49495575100279 1.4949569912969 4.36665526108428 4.23491494721834 2459901.145145613 0.411292185611567 64.9738484698155 29.7644074756736 88.3973532315222 2676212.62930418 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:20:18 2020-Nov-13 04:20
2034-Jan-15 19:41 00:01 Jupiter 1.85671558479592 1.85671447895538 1.85671669063688 3.48323029983246 3.34970227257059 2463978.320090954 1.09413501557147 173.026363753299 53.4883221614799 -79.2090717243256 2685907.48355137 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:20:18 2020-Nov-13 04:20
2155-Feb-04 13:27 00:02 Jupiter 1.8261531314831 1.82615030965765 1.82615595342117 4.58788770807443 4.48564999884552 2508192.060704715 2.23432769431293 755.365510046712 28.8554706960899 -79.5222789052541 2858430.4216126 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:20:18 2020-Nov-13 04:20
2166-Apr-23 00:37 00:02 Jupiter 1.44198433456357 1.4419825927193 1.44198607642735 4.63390127418848 4.50535678344291 2512287.525728905 1.69692620469236 289.063130682453 16.9481888514123 -73.0997997654724 2932164.57565111 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:20:18 2020-Nov-13 04:20
2177-Sep-13 04:31 00:02 Jupiter 1.31525226064187 1.31525179894024 1.31525272234754 4.59186016879145 4.44940217541227 2516448.688020946 1.49763303154761 183.752595291243 16.8141186929602 -85.6187070518568 3179932.00154498 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:20:18 2020-Nov-13 04:20
2189-Feb-12 11:34 00:02 Jupiter 1.41550276682507 1.41550122536123 1.41550430829494 4.51590744943238 4.38139707775862 2520618.981966505 1.89947463960134 182.114572353996 34.4114488531547 66.9020207798205 2985462.37757212 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:20:18 2020-Nov-13 04:20
2200-May-14 03:12 00:03 Jupiter 1.76012323600882 1.76011966814684 1.76012680387181 4.07098324935882 3.95100574818342 2524726.633442689 3.38779534503992 192.43491125301 84.8354656084124 -10.6124347862894 2855031.41040264 T 44 CATAB v2.0f-lin.ifort 2020-Nov-13 04:20:18 2020-Nov-13 04:20

Alternate Designations
 1934 LD = 1974 HR3 = 1974 KM = 1974 KO = A908 UB = A911 HC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-27 00:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin