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 ]  
159857 (2004 LJ1)
Classification: Apollo [NEO, PHA]          SPK-ID: 2159857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 228 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .593734316399308 2.9733e-08  
a 2.262631279341875 9.1768e-09 au
q .9192294434381353 6.7085e-08 au
i 23.14530433499494 5.8456e-06 deg
node 235.5770764299379 1.0931e-05 deg
peri 139.9587140102117 1.2506e-05 deg
M 274.1184509907578 1.1962e-05 deg
tp 2459497.062664570873
(2021-Oct-09.56266457)
4.3076e-05 TDB
period 1243.137326668677
3.40
7.5629e-06
2.071e-08
d
yr
n .2895898886446581 1.7618e-09 deg/d
Q 3.606033115245615 1.4625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1422  
   data-arc span      9617 days (26.33 yr)  
   first obs. used      1995-02-03  
   last obs. used      2021-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39996  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-04 05:59:24  

Additional Information
 Earth MOID = .015178 au 
 Jupiter MOID = 2.15374 au 
 T_jup = 3.276 
[ 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 15.43   n/a E2021B55  
diameter diameter 3.070 km 1.324 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 2.7247 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2004) http://www.asu.cas.cz/~ppravec/neo.htm]
[Galad, A.; Pravec, P.; Kusnirak, P.; Gajdos, S.; et al. (2005) Earth, Moon, and Planets 97, 147-163.]
[Torppa, J. (2011) http://www.astro.helsinki.fi/~psr/NEO/not_obs.html]
[Warner, B.D. (2015) Minor Planet Bull. 42, 41-53.]
geometric albedo albedo 0.130   0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

159857 (2004 LJ1)          Discovered 2004-Jun-10 by LINEAR at Socorro
Reference: 20070630/Numbers.arcLast Updated: 2007-07-05

[ 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 2021-Jun-12 18:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin