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 ]  
14204 (1999 AM20)
Classification: Main-belt Asteroid          SPK-ID: 2014204
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08449178083959091 3.2825e-08  
a 2.991194847896004 1.8292e-08 au
q 2.738463468359062 9.9707e-08 au
i 11.3265045306717 3.7556e-06 deg
node 123.9641961456851 1.9636e-05 deg
peri 177.6138472202182 3.0422e-05 deg
M 259.3220759777027 2.3727e-05 deg
tp 2459728.941886248350
(2022-May-29.44188625)
0.00012492 TDB
period 1889.580867870037
5.17
1.7333e-05
4.746e-08
d
yr
n .1905184404231385 1.7476e-09 deg/d
Q 3.243926227432947 1.9837e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2250  
   data-arc span      10814 days (29.61 yr)  
   first obs. used      1991-08-06  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44927  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:19:57  

Additional Information
 Earth MOID = 1.72109 au 
 Jupiter MOID = 1.9836 au 
 T_jup = 3.221 
[ 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 12.96   n/a E2021B10  
rotation period rot_per 125.197 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

14204 (1999 AM20)          Discovered 1999-Jan-12 by Zoltowski, F. B. at Woomera
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AM20 = 1991 PQ14 = 1997 UE22 
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-14 12:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin