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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
65580 (4181 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2065580
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03422715031956113 4.3346e-08  
a 3.100860330745872 2.8074e-08 au
q 2.994726718085469 1.3998e-07 au
i 11.02188301012557 7.3379e-06 deg
node 22.26121026194261 2.5017e-05 deg
peri 287.005076159786 0.00010885 deg
M 247.8711842656602 0.0001057 deg
tp 2459621.707183439144
(2022-Feb-11.20718344)
0.00058571 TDB
period 1994.443485142447
5.46
2.7086e-05
7.416e-08
d
yr
n .1805014795765386 2.4513e-09 deg/d
Q 3.206993943406275 2.9035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      547  
   data-arc span      16911 days (46.30 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56042  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:42:14  

Additional Information
 Earth MOID = 2.00551 au 
 Jupiter MOID = 1.89227 au 
 T_jup = 3.193 
[ 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 14.6   n/a MPO287225  

65580 (4181 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20030614/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
1952-Mar-08 08:09 00:02 Jupiter 1.87705573633035 1.87705512733607 1.87705634532505 4.41537077095159 4.31195986265719 2434079.839850736 2.4283195487357 141.645971175604 25.7741016272032 -85.7247275091739 2283050.71563311 T 18 CATAB v2.0f-lin.ifort 2020-Jan-29 10:42:30 2020-Jan-29 10:42
2023-Jan-25 18:55 < 00:01 Jupiter 1.89503507867333 1.89503447641473 1.89503568093204 4.50973549075709 4.40950967598925 2459970.288450603 0.425066483329987 114.475767633636 26.0190246092009 -85.1967741647357 2521182.75185365 T 18 CATAB v2.0f-lin.ifort 2020-Jan-29 10:42:30 2020-Jan-29 10:42
2083-Nov-11 09:39 00:03 Jupiter 1.97335530034542 1.97335436467087 1.97335623602109 3.77172576504276 3.65615317471438 2482174.901759658 2.9291720384477 102.240691938238 22.2452279969945 -64.2956525173406 2188847.99248568 T 18 CATAB v2.0f-lin.ifort 2020-Jan-29 10:42:30 2020-Jan-29 10:42
2093-Dec-14 23:07 00:03 Jupiter 1.92502991187958 1.92502898410546 1.92503083965873 4.58464904213545 4.48764939814356 2485861.463214906 3.15871159689372 220.49868727155 28.8445282398568 -81.1896899277957 2458130.5614808 T 18 CATAB v2.0f-lin.ifort 2020-Jan-29 10:42:30 2020-Jan-29 10:42
2154-Sep-27 01:52 00:06 Jupiter 1.94121029687243 1.94120896886575 1.94121162488187 3.94842163256977 3.83632098900824 2508061.577755816 5.78615274422481 149.083670800044 27.753771750036 -61.9334864067943 2102234.11300715 T 18 CATAB v2.0f-lin.ifort 2020-Jan-29 10:42:30 2020-Jan-29 10:42
2164-Nov-04 09:06 00:06 Jupiter 1.96787726618197 1.96787543015496 1.96787910222533 4.64522799604904 4.55162544691571 2511752.879309596 5.93131982341534 324.618065205046 34.3734493371758 -75.0269126295478 2617037.80458355 T 18 CATAB v2.0f-lin.ifort 2020-Jan-29 10:42:30 2020-Jan-29 10:42

Alternate Designations
 4181 T-2 = 2001 TD34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-19 13:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin