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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1181962952437971 2.2697e-08  
a 2.80361655552029 9.9791e-09 au
q 2.472239465373616 6.7312e-08 au
i 6.309449808186924 1.355e-07 deg
node 170.1803658560958 1.8809e-06 deg
peri 184.5895814811444 6.1572e-06 deg
M 319.132836569241 4.3911e-06 deg
tp 2459395.147282335634
(2021-Jun-29.64728234)
2.1166e-05 TDB
period 1714.653422412165
4.69
9.1546e-06
2.506e-08
d
yr
n .2099549654142666 1.121e-09 deg/d
Q 3.134993645666964 1.1159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2712  
   data-arc span      27048 days (74.05 yr)  
   first obs. used      1946-10-04  
   last obs. used      2020-10-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45277  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:11:29  

Additional Information
 Earth MOID = 1.46564 au 
 Jupiter MOID = 2.30139 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 12.16   n/a E2021B10  
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. 2020-October); 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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