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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184224534772959 3.7464e-08  
a 2.802201056882649 1.0706e-08 au
q 2.470357532589935 1.0771e-07 au
i 6.307144617375798 4.1024e-06 deg
node 170.2311783764991 3.2294e-05 deg
peri 184.8731507586649 3.5568e-05 deg
M 276.8420694723754 1.6046e-05 deg
tp 2459396.275164268664
(2021-Jun-30.77516427)
7.7164e-05 TDB
period 1713.355037008629
4.69
9.8192e-06
2.688e-08
d
yr
n .2101140698944272 1.2042e-09 deg/d
Q 3.134044581175365 1.1974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2549  
   data-arc span      26967 days (73.83 yr)  
   first obs. used      1946-10-04  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45095  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:43:46  

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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