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 ]  
24177 (1999 XJ7)
Classification: Main-belt Asteroid          SPK-ID: 2024177
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1021995699504647 1.6944e-08  
a 2.336857802337082 7.0756e-09 au
q 2.098031939902844 4.2364e-08 au
i 7.501049247696516 4.0467e-07 deg
node 99.35061193824205 9.3047e-06 deg
peri 297.5428528009359 1.633e-05 deg
M 341.2793654609683 1.244e-05 deg
tp 2459268.352354252554
(2021-Feb-22.85235425)
4.5134e-05 TDB
period 1304.808738186222
3.57
5.9261e-06
1.622e-08
d
yr
n .2759025054510487 1.2531e-09 deg/d
Q 2.57568366477132 7.7988e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2298  
   data-arc span      15916 days (43.58 yr)  
   first obs. used      1977-07-17  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:36:59  

Additional Information
 Earth MOID = 1.11719 au 
 Jupiter MOID = 2.77597 au 
 T_jup = 3.549 
[ 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 14.00   n/a MPCxxxxx  
rotation period rot_per 3.810 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
[Stephens, R.D.; Warner, B.D. (2021) Minor Planet Bull. 48-1, submitted. (MBA Gaggle) http://www.planetarysciences.org/lightcurves.html]

24177 (1999 XJ7)          Discovered 1999-Dec-04 by Juels, C. W. at Fountain Hills
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XJ7 = 1998 MK22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-22 21:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin