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 ]  
21990 Garretyazzie (1999 XH22)
Classification: Main-belt Asteroid          SPK-ID: 2021990
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009993317308762 3.4409e-08  
a 2.917952214334019 1.5175e-08 au
q 2.623240990663653 9.8952e-08 au
i 2.56151585803263 3.5051e-06 deg
node 148.9709041256959 9.6206e-05 deg
peri 189.3536317384864 9.8712e-05 deg
M 103.5595979577706 2.2596e-05 deg
tp 2458476.774711142327
(2018-Dec-24.27471114)
0.00011452 TDB
period 1820.604827624432
4.98
1.4203e-05
3.889e-08
d
yr
n .1977364854457386 1.5426e-09 deg/d
Q 3.212663438004385 1.6708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1704  
   data-arc span      9962 days (27.27 yr)  
   first obs. used      1993-07-12  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53673  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:53:47  

Additional Information
 Earth MOID = 1.61409 au 
 Jupiter MOID = 2.13186 au 
 T_jup = 3.272 
[ 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 14.0   n/a MPO358838  
diameter diameter 4.772 km 0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.234   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21990 Garretyazzie           Discovered 1999 Dec. 6 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Garrett Michael Yazzie (b. 1991) is a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his engineering project. He attends the Pinon Unified School District #4 Middle School, Pinon, Arizona.
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
2121-Nov-11 05:15 00:32 Cybel 0.0499476749064681 0.0499443678911911 0.0499509840005208 1.33680193289947 1.33680184179627 2496053.718454363 31.7136120423931 559.073445286901 52.7594279649772 73.6546508852094 135370.940555213 T 27 CATAB v2.0f-lin.ifort 2020-Nov-13 01:53:51 2020-Nov-13 01:53

Alternate Designations
 1999 XH22 = 1993 OB12 = 1998 MU29 
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-25 08:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin