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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456577.5 (2013-Oct-12.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .117766979945584 3.6149e-08  
q 2.472083419660736 1.0456e-07 au
tp 2455976.719759393883
(2012-Feb-19.21975939)
7.3115e-05 TDB
node 170.2803104150355 3.2108e-05 deg
peri 185.9251248932922 3.5434e-05 deg
i 6.305168560654612 3.8533e-06 deg
  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
 Jupiter MOID = 2.30265 au 
 T_jup = 3.305 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.306770582352616E-15 -3.765598171745224E-15 -5.483796758308339E-14 -2.297696779600148E-15 1.596823144098598E-15 1.468226356792226E-16
q -3.765598171745224E-15 1.093214697315676E-14 1.936017410522632E-13 5.884665581144169E-15 7.148256242517531E-15 -1.229902775622941E-16
tp -5.483796758308339E-14 1.936017410522632E-13 5.345809601979199E-9 -2.251424638901157E-12 1.11037098722443E-9 1.055647333590004E-12
node -2.297696779600148E-15 5.884665581144169E-15 -2.251424638901157E-12 1.030908981817092E-9 -1.024739831384507E-9 7.201080800405415E-12
peri 1.596823144098598E-15 7.148256242517531E-15 1.11037098722443E-9 -1.024739831384507E-9 1.255597313491967E-9 -6.896611459443694E-12
i 1.468226356792226E-16 -1.229902775622941E-16 1.055647333590004E-12 7.201080800405415E-12 -6.896611459443694E-12 1.484820096627593E-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 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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