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52309 Philnicolai (1991 TQ7)
Classification: Main-belt Asteroid          SPK-ID: 2052309
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04180347565283886 2.2173e-08  
a 2.787588241585139 1.2533e-08 au
q 2.671057364397895 6.3834e-08 au
i 18.2401147137822 5.3223e-07 deg
node .9425572754228766 2.6006e-06 deg
peri 261.5286675312601 2.7173e-05 deg
M 197.9791061041938 3.1156e-05 deg
tp 2459965.585349716908
(2023-Jan-21.08534972)
0.00014881 TDB
period 1699.970412922256
4.65
1.1464e-05
3.139e-08
d
yr
n .2117683915340376 1.4281e-09 deg/d
Q 2.904119118772384 1.3056e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2275  
   data-arc span      10783 days (29.52 yr)  
   first obs. used      1991-09-10  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44476  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:17:47  

Additional Information
 Earth MOID = 1.72203 au 
 Jupiter MOID = 2.15246 au 
 T_jup = 3.256 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.45   n/a E2021B10  
diameter diameter 13.359 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 4.641 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.055   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

52309 Philnicolai           Discovered 1991 Oct. 7 by F. Börngen at Tautenburg.
Philipp Nicolai (1556-1608) is the creator of both the words and melodies of the hymns How brightly beams the morning star! and Wake, awake! for night is flying. J. S. Bach took them as a basis for two of his cantatas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1991 TQ7 = 2000 QM188 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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