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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
21956 Thangada (1999 VE179)
Classification: Main-belt Asteroid          SPK-ID: 2021956
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09813594711068654 4.9053e-08  
a 2.777839184281051 1.3912e-08 au
q 2.505233305010453 1.3031e-07 au
i 9.907635493703014 4.2355e-06 deg
node 148.4054321686475 2.4859e-05 deg
peri 23.35673926289122 3.1531e-05 deg
M 132.8192390058193 1.9982e-05 deg
tp 2458772.596296831730
(2019-Oct-16.09629683)
9.2517e-05 TDB
period 1691.060232100383
4.63
1.2704e-05
3.478e-08
d
yr
n .2128841972428514 1.5993e-09 deg/d
Q 3.050445063551649 1.5278e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1500  
   data-arc span      24224 days (66.32 yr)  
   first obs. used      1955-04-14  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5077  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:46:45  

Additional Information
 Earth MOID = 1.51593 au 
 Jupiter MOID = 1.92618 au 
 T_jup = 3.306 
[ 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 14.17   n/a MPO636393  
diameter diameter 4.233 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.188   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21956 Thangada           Discovered 1999 Nov. 6 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Neela Devi Thangada (b. 1990) is a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her botany & zoology project. She attends the Keystone Junior High School, San Antonio, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051019/MPCPages.arcLast Updated: 2005-10-26

[ 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
1916-Jan-03 15:48 00:02 Jupiter 1.93790920854056 1.93790854940961 1.93790986767482 3.29496988317736 3.15953562091048 2420866.158031812 2.04734908815594 159.754503891728 15.5332335804354 80.2225058050505 2843630.94687814 T 32 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:56 2021-Aug-24 22:46
1999-Apr-08 13:09 < 00:01 Jupiter 1.9564976623276 1.95649716713068 1.95649815752452 3.20583584184546 3.06782130446135 2451277.048045948 0.377499579294424 39.4797631158103 16.3773140334878 70.054035302765 2668396.25693329 T 32 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:56 2021-Aug-24 22:46
2021-Nov-18 02:42 < 00:01 Jupiter 1.9682229252833 1.96822251305186 1.96822333751463 3.57257667884432 3.45001541835787 2459536.612185341 0.194461360411827 42.6504494841539 16.9807841472622 85.4645488331358 3175376.63212913 T 32 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:56 2021-Aug-24 22:46
2082-Jul-15 07:47 00:01 Jupiter 1.9869185889591 1.98691813089761 1.98691904702105 3.12330681805913 2.98369676222195 2481690.824261007 1.41381734505069 99.5211624350257 14.9797061300216 80.5469357501755 2787993.14480388 T 32 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:56 2021-Aug-24 22:46
2105-Feb-20 01:05 00:02 Jupiter 1.95154010139042 1.95153944227476 1.95154076050852 3.50799107966719 3.38200324723833 2489945.545300335 1.80084703658762 144.333942997957 17.733245229425 -81.7540232329907 3246030.36335234 T 32 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:56 2021-Aug-24 22:46
2188-May-25 11:45 00:03 Jupiter 1.92978497320639 1.92978430940769 1.92978563701507 3.39539538502074 3.26356683445711 2520355.989757904 3.48778366968737 278.887889392335 16.6620723857783 -86.4926446813029 3029219.93181485 T 32 CATAB v2.0g-lin.ifort 2021-Aug-24 22:46:56 2021-Aug-24 22:46

Alternate Designations
 1999 VE179 = 1987 DC3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-23 03:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin