Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
70451 (1999 TQ18)
Classification: Main-belt Asteroid          SPK-ID: 2070451
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204145432182406 1.701e-07  
a 2.59172210004854 4.3463e-08 AU
q 2.020468857217721 4.6891e-07 AU
i 4.241250957420321 1.2099e-05 deg
node 16.57699810977508 0.00012394 deg
peri 300.6237607506805 0.00012547 deg
M 270.629671919523 2.2838e-05 deg
tp 2457378.830998323037
(2015-Dec-22.33099832)
0.00010226 JED
period 1523.986342241549
4.17
3.8336e-05
1.05e-07
d
yr
n .2362225894167106 5.9422e-09 deg/d
Q 3.162975342879357 5.3043e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      368  
   data-arc span      6677 days (18.28 yr)  
   first obs. used      1997-02-01  
   last obs. used      2015-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57705  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 18:29:07  

Additional Information
 Earth MOID = 1.01215 AU 
 T_jup = 3.381 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4 mag n/a MPO247866  

70451 (1999 TQ18)          Discovered 1999-Oct-14 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TQ18 = 1998 HL72 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jul-06 04:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin