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 ]  
21846 Wojakowski (1999 TT114)
Classification: Main-belt Asteroid          SPK-ID: 2021846
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1111481959552449 3.5761e-08  
a 2.403190789862097 9.5677e-09 au
q 2.136080469032665 8.9517e-08 au
i 1.72798604667912 4.5425e-06 deg
node 316.3690815251404 0.00011549 deg
peri 271.2948419811837 0.00011751 deg
M 330.1492528750168 2.2722e-05 deg
tp 2459113.332317380200
(2020-Sep-20.83231738)
8.5976e-05 TDB
period 1360.757708569243
3.73
8.1262e-06
2.225e-08
d
yr
n .2645584865938543 1.5799e-09 deg/d
Q 2.67030111069153 1.0631e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1351  
   data-arc span      10489 days (28.72 yr)  
   first obs. used      1991-08-05  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:26:13  

Additional Information
 Earth MOID = 1.12702 au 
 Jupiter MOID = 2.31615 au 
 T_jup = 3.515 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456817.5 (2014-Jun-09.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1117632562407334 3.5636e-08  
q 2.134769004222128 8.9272e-08 au
tp 2456391.652720180642
(2013-Apr-09.15272018)
8.5061e-05 TDB
node 316.4378702141587 0.00011534 deg
peri 271.3142535663864 0.00011735 deg
i 1.729472810831445 4.5443e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1351  
   data-arc span      10489 days (28.72 yr)  
   first obs. used      1991-08-05  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:26:13  

Additional Information
 Jupiter MOID = 2.31615 au 
 T_jup = 3.515 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.269924052011216E-15 -3.168954001678205E-15 -9.239671714430597E-13 -1.595796042023324E-15 -2.156659354996078E-13 2.248454986868959E-16
q -3.168954001678205E-15 7.969434649521679E-15 2.180014207777451E-12 3.852869347792809E-15 5.104162003890631E-13 -4.436674273726361E-16
tp -9.239671714430597E-13 2.180014207777451E-12 7.235298486371921E-9 -2.13064047317394E-12 1.847370565291668E-9 -7.973293914400036E-13
node -1.595796042023324E-15 3.852869347792809E-15 -2.13064047317394E-12 1.330337412740494E-8 -1.329740996568353E-8 1.286529457703644E-10
peri -2.156659354996078E-13 5.104162003890631E-13 1.847370565291668E-9 -1.329740996568353E-8 1.377015691319592E-8 -1.28768077032833E-10
i 2.248454986868959E-16 -4.436674273726361E-16 -7.973293914400036E-13 1.286529457703644E-10 -1.28768077032833E-10 2.065104334024738E-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 15.1   n/a MPO358837  
diameter diameter 5.170 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21846 Wojakowski           Discovered 1999 Oct. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Maria Malgorzata Wojakowski (b. 1987) was awarded fourth place in the 2005 Intel International Science and Engineering Fair for her zoology project. She also received the Intel Foundation Achievement Award. She attends the Townsend Harris High School at Queens College, Flushing, New York, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050822/MPCPages.arcLast Updated: 2005-08-26

[ 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
2056-Nov-13 22:24 00:02 Vesta 0.0306397235998181 0.0306345736665253 0.0306448755746823 2.86686904006274 2.86686768549105 2472316.433088650 2.45412105875379 468.916409286417 29.6861099531245 57.2911696292401 128967.97295232 T 24 CATAB v2.0f-lin.ifort 2020-May-20 05:26:27 2020-May-20 05:26

Alternate Designations
 1999 TT114 = 1991 PQ26 = 1998 KO17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-26 23:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin