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 ]  
21547 Kottapalli (1998 QK38)
Classification: Main-belt Asteroid          SPK-ID: 2021547
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1396122021943169 3.2097e-08  
a 3.168387629765588 1.9006e-08 au
q 2.726042055368782 1.0686e-07 au
i .3263275969377737 3.7622e-06 deg
node 323.0590748640266 0.00070422 deg
peri 325.9546557769528 0.00070438 deg
M 23.96327809959164 1.4937e-05 deg
tp 2459063.380374795052
(2020-Aug-01.88037479)
8.5289e-05 TDB
period 2059.946258964561
5.64
1.8536e-05
5.075e-08
d
yr
n .1747618407195512 1.5725e-09 deg/d
Q 3.610733204162393 2.166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1635  
   data-arc span      11654 days (31.91 yr)  
   first obs. used      1988-12-14  
   last obs. used      2020-11-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:47:54  

Additional Information
 Earth MOID = 1.70778 au 
 Jupiter MOID = 1.55703 au 
 T_jup = 3.188 
[ 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 13.46   n/a E2021B10  
diameter diameter 11.290 km 2.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.066   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

21547 Kottapalli           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Anjaney Pramod Kottapalli (b. 1989) was awarded second place in the 2006 Intel International Science and Engineering Fair for his engineering project. He attends the Lynbrook High School, San Jose, California, 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: 20060711/MPCPages.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1998 QK38 = 1991 HK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-16 12:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin