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 ]  
161995 (1983 LB)
Classification: Amor [NEO]          SPK-ID: 2161995
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 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4790202243000166 8.497e-08  
a 2.286759077189374 1.2894e-08 au
q 1.191355231114021 1.9808e-07 au
i 25.27209061386398 1.5566e-05 deg
node 81.18816653491167 2.5576e-05 deg
peri 220.6827653690999 4.6422e-05 deg
M 232.95897916305 4.0189e-05 deg
tp 2459446.228617616274
(2021-Aug-19.72861762)
0.00014416 TDB
period 1263.074724090913
3.46
1.0683e-05
2.925e-08
d
yr
n .2850187666126459 2.4107e-09 deg/d
Q 3.382162923264727 1.9071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      12991 days (35.57 yr)  
   first obs. used      1983-06-13  
   last obs. used      2019-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70671  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-26 10:13:01  

Additional Information
 Earth MOID = .245614 au 
 Jupiter MOID = 2.06566 au 
 T_jup = 3.328 
[ 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 17.2   n/a MPO299862  

161995 (1983 LB)          Discovered 1983-Jun-13 by Swann, S. R., Helin, E. F. at Palomar
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-07 16:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin