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 ]  
16123 Jessiecheng (1999 XQ83)
Classification: Main-belt Asteroid          SPK-ID: 2016123
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2232647354819346 3.0123e-08  
a 2.378231756980218 6.9148e-09 au
q 1.847256472843293 7.2923e-08 au
i 3.331491751153749 3.3442e-06 deg
node 116.6556514307078 6.3568e-05 deg
peri 198.1787036457824 6.4096e-05 deg
M 77.94261898219365 8.6775e-06 deg
tp 2459106.463816487535
(2020-Sep-13.96381649)
3.2104e-05 TDB
period 1339.614031808979
3.67
5.8425e-06
1.6e-08
d
yr
n .2687341215095108 1.172e-09 deg/d
Q 2.909207041117143 8.4586e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2186  
   data-arc span      10742 days (29.41 yr)  
   first obs. used      1991-09-12  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49081  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:20:27  

Additional Information
 Earth MOID = .833155 au 
 Jupiter MOID = 2.384 au 
 T_jup = 3.504 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.40   n/a MPCxxxxx  
rotation period rot_per 3.98 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

16123 Jessiecheng           Discovered 1999 Dec. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Named in honor of Jessie Cheng for achievement as a finalist in the 2002 Intel Science Talent Search, a science competition for high school seniors. Jessie is a student at the Byram Hills High School, Armonk, New York.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020227/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1999 XQ83 = 1991 RP8 = 1998 MS27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-04 20:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin