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 ]  
44712 (1999 TJ5)
Classification: Main-belt Asteroid          SPK-ID: 2044712
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .171838670148922 4.3448e-08  
a 2.190924140525978 6.8523e-09 au
q 1.814438649820824 9.5369e-08 au
i 3.854357250625557 4.4398e-06 deg
node 347.1465761533082 4.509e-05 deg
peri 7.006298966130928 4.5964e-05 deg
M 217.1290932448047 9.9533e-06 deg
tp 2459670.589702724619
(2022-Apr-01.08970272)
3.3879e-05 TDB
period 1184.511926356265
3.24
5.557e-06
1.521e-08
d
yr
n .3039226469482781 1.4258e-09 deg/d
Q 2.567409631231131 8.0298e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1334  
   data-arc span      8111 days (22.21 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5753  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:32:15  

Additional Information
 Earth MOID = .807708 au 
 Jupiter MOID = 2.86413 au 
 T_jup = 3.651 
[ 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 15.41   n/a E2020-QM5  
diameter diameter 2.180 km 0.456 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.309   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

44712 (1999 TJ5)          Discovered 1999-Oct-04 by Sarounova, L. at Ondrejov
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TJ5 = 1998 HC38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-14 16:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin