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 ]  
85275 (1994 LY)
Classification: Amor [NEO]          SPK-ID: 2085275
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 219 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4419216420971036 3.4272e-08  
a 1.89016689497705 6.2755e-09 au
q 1.054861236911209 6.4698e-08 au
i 17.71843996231652 5.6053e-06 deg
node 141.1640359967834 1.069e-05 deg
peri 202.8115611064885 1.2096e-05 deg
M 321.4795059707963 1.1174e-05 deg
tp 2459102.063580556549
(2020-Sep-09.56358056)
2.9926e-05 TDB
period 949.1801681629046
2.60
4.727e-06
1.294e-08
d
yr
n .3792746752144682 1.8888e-09 deg/d
Q 2.725472553042891 9.0487e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1180  
   data-arc span      9485 days (25.97 yr)  
   first obs. used      1994-06-05  
   last obs. used      2020-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-25 06:42:51  

Additional Information
 Earth MOID = .0645005 au 
 Jupiter MOID = 2.70779 au 
 T_jup = 3.783 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456599.5 (2013-Nov-03.0) TDB
Reference: JPL 219 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4420929356227874 3.4354e-08  
q 1.054463338717501 6.4882e-08 au
tp 2456254.737790156676
(2012-Nov-23.23779016)
1.7761e-05 TDB
node 141.2156452706921 1.0679e-05 deg
peri 202.7473721292769 1.2079e-05 deg
i 17.73044767357992 5.609e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1180  
   data-arc span      9485 days (25.97 yr)  
   first obs. used      1994-06-05  
   last obs. used      2020-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-25 06:42:51  

Additional Information
 Jupiter MOID = 2.70779 au 
 T_jup = 3.783 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.180190417398664E-15 -2.225720724827355E-15 -1.596349331653269E-13 -1.681569126979514E-14 3.784883410042264E-14 -3.878170580109471E-14
q -2.225720724827355E-15 4.209710664095134E-15 3.478898057846231E-13 3.179854208276294E-14 -5.917696180834257E-14 7.464179001446762E-14
tp -1.596349331653269E-13 3.478898057846231E-13 3.154418868678098E-10 1.759504233793887E-11 8.827882670318387E-11 2.432846894851148E-11
node -1.681569126979514E-14 3.179854208276294E-14 1.759504233793887E-11 1.140439964534858E-10 -1.026211960072744E-10 -1.394034967376525E-11
peri 3.784883410042264E-14 -5.917696180834257E-14 8.827882670318387E-11 -1.026211960072744E-10 1.459133200968275E-10 2.004554564193281E-11
i -3.878170580109471E-14 7.464179001446762E-14 2.432846894851148E-11 -1.394034967376525E-11 2.004554564193281E-11 3.14603642001116E-11

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 16.1   n/a MPO410590  
diameter diameter 2.506 km 1.179 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 2.6962 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm]
[Brinsfield, J.W. (2008) Minor Planet Bull. 35, 23-24.]
[Apostolovska, G.; Ivanova, V. Kostov, A. (2009) Minor Planet Bull. 36, 27-28.]
geometric albedo albedo 0.093   0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

85275 (1994 LY)          Discovered 1994-Jun-11 by Helin, E. F. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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-May-25 22:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin