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 ]  
22003 Startek (1999 XO42)
Classification: Main-belt Asteroid          SPK-ID: 2022003
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05646075606845073 3.8362e-08  
a 2.935049659463203 1.3098e-08 au
q 2.769334536591461 1.1512e-07 au
i 1.459993433459716 3.6281e-06 deg
node 7.393140102268206 0.00014064 deg
peri 133.7593398036815 0.00014475 deg
M 347.2166951347139 3.2073e-05 deg
tp 2459265.717215604689
(2021-Feb-20.21721560)
0.0001636 TDB
period 1836.629718614052
5.03
1.2294e-05
3.366e-08
d
yr
n .1960112026672755 1.3121e-09 deg/d
Q 3.100764782334944 1.3838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1731  
   data-arc span      10080 days (27.60 yr)  
   first obs. used      1993-08-15  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5153  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:17:19  

Additional Information
 Earth MOID = 1.78214 au 
 Jupiter MOID = 1.89424 au 
 T_jup = 3.272 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457161.5 (2015-May-19.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05552820000551296 3.9073e-08  
q 2.770529318224067 1.1721e-07 au
tp 2457442.880338322356
(2016-Feb-24.38033832)
0.00016442 TDB
node 7.434186485184039 0.00014034 deg
peri 136.4182954939406 0.00014441 deg
i 1.463352762819529 3.6298e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1731  
   data-arc span      10080 days (27.60 yr)  
   first obs. used      1993-08-15  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5153  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:17:19  

Additional Information
 Jupiter MOID = 1.89424 au 
 T_jup = 3.272 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.526678949507387E-15 -4.554808589530837E-15 1.344209508291842E-12 -1.603512405584831E-14 3.276218811522827E-13 -4.375368381170892E-16
q -4.554808589530837E-15 1.373865299241788E-14 -4.264193021827239E-12 4.799269480262079E-14 -1.033045201644902E-12 1.36649129969687E-15
tp 1.344209508291842E-12 -4.264193021827239E-12 2.703441454067332E-8 -2.387788470085582E-11 5.605054555460693E-9 -3.579997894685585E-13
node -1.603512405584831E-14 4.799269480262079E-14 -2.387788470085582E-11 1.969625929597356E-8 -1.96948834712763E-8 -1.157024283590847E-10
peri 3.276218811522827E-13 -1.033045201644902E-12 5.605054555460693E-9 -1.96948834712763E-8 2.085301162409054E-8 1.155862915980644E-10
i -4.375368381170892E-16 1.36649129969687E-15 -3.579997894685585E-13 -1.157024283590847E-10 1.155862915980644E-10 1.317520639649405E-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 14.34   n/a MPCxxxxx  
diameter diameter 3.916 km 0.988 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22003 Startek           Discovered 1999 Dec. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jennifer Startek mentored a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Southwestern Educational Society, Mayaguez, Puerto Rico.
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

[ show close-approach data ]
Alternate Designations
 1999 XO42 = 1996 DM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-12 18:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin