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4540 Oriani (1988 VY1)
Classification: Main-belt Asteroid          SPK-ID: 2004540
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1763076482105635 5.4435e-08  
a 2.666314249365763 1.8905e-08 AU
q 2.196222654669771 1.4865e-07 AU
i 6.351907783731166 5.9641e-06 deg
node 246.6168139286339 4.9446e-05 deg
peri 261.0480899135524 5.2703e-05 deg
M 273.6889328648767 1.882e-05 deg
tp 2457381.767171692173
8.5025e-05 JED
period 1590.250084549439
n .2263794880425978 2.4076e-09 deg/d
Q 3.136405844061754 2.2238e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1390  
   data-arc span      19078 days (52.23 yr)  
   first obs. used      1962-12-03  
   last obs. used      2015-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48097  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:53:59  

Additional Information
 Earth MOID = 1.2192 AU 
 T_jup = 3.352 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4 mag n/a MPO267726  
diameter diameter 16.5 km n/a DASTCOM value unverified
geometric albedo albedo 0.1129   0.036 EAR-A-5-DDR-ALBEDOS-V1.0:IMPS IMPS quality code 2: from the PDS IMPS singleton file

4540 Oriani (1988 VY1)          Discovered 1988-Nov-06 by Oss. San Vittore at Bologna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 VY1 = 1962 XE1 = 1968 DF = 1975 WL = 1977 FH3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2015-Mar-31 18:06 UT
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