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 ]  
74898 (1999 TL123)
Classification: Main-belt Asteroid          SPK-ID: 2074898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1411767173515506 3.6182e-08  
a 2.382400943610307 9.2234e-09 au
q 2.046061398976168 8.845e-08 au
i 6.787641003412365 3.7706e-06 deg
node 162.8218711510873 2.9303e-05 deg
peri 204.4010126309564 3.2125e-05 deg
M 229.2462162552102 1.5581e-05 deg
tp 2459488.334454357183
(2021-Sep-30.83445436)
5.9848e-05 TDB
period 1343.138213968389
3.68
7.7999e-06
2.135e-08
d
yr
n .268029005694326 1.5565e-09 deg/d
Q 2.718740488244447 1.0526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1538  
   data-arc span      8170 days (22.37 yr)  
   first obs. used      1998-04-24  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48941  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:41:54  

Additional Information
 Earth MOID = 1.04622 au 
 Jupiter MOID = 2.74019 au 
 T_jup = 3.514 
[ 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 15.0   n/a MPO333438  
rotation period rot_per 9.14474 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.]

74898 (1999 TL123)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2006-Jul-05 06:24 < 00:01 Hebe 0.0398005813970342 0.0397994569486133 0.0398017058459492 3.63268818386641 3.63268814086923 2453921.766855240 0.553440945468235 56.6054484971935 27.4528893359398 -9.34710133112974 109518.550126665 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 21:41:57 2020-Nov-12 21:41
2159-Jun-10 15:15 00:02 Juno 0.0418345832192776 0.041831373380897 0.041837804675137 4.04946431782622 4.04946424601158 2509779.135603075 1.53056282521179 1144.35146154801 39.4275469240005 82.2044641038031 157113.649855287 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 21:41:57 2020-Nov-12 21:41
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-17 07:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin