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1975 Pikelner (1969 PH)
Classification: Main-belt Asteroid          SPK-ID: 2001975
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

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 two-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 is not working, here are some notes that might help.
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184224425167696 3.6137e-08  
a 2.802201054687939 1.0523e-08 au
q 2.470357561368726 1.0454e-07 au
i 6.307145919931431 3.8542e-06 deg
node 170.2311815893552 3.2091e-05 deg
peri 184.8731468715289 3.5376e-05 deg
M 276.8420714814773 1.5947e-05 deg
tp 2459396.275154241744
(2021-Jun-30.77515424)
7.665e-05 TDB
period 1713.355034995755
4.69
9.6508e-06
2.642e-08
d
yr
n .2101140701412722 1.1835e-09 deg/d
Q 3.134044548007152 1.1769e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2646  
   data-arc span      27048 days (74.05 yr)  
   first obs. used      1946-10-04  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:13:42  

Additional Information
 Earth MOID = 1.46557 au 
 Jupiter MOID = 2.30265 au 
 T_jup = 3.305 
[ 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 12.1   n/a MPO384767  
diameter diameter 14.737 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.2768 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.118   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1975 Pikelner (1969 PH)          Discovered 1969-Aug-11 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1969 PH = 1927 SE = 1946 TD = 1951 XM = 1951 YH = 1974 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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