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17821 Bolsche (1998 FC127)
Classification: Main-belt Asteroid          SPK-ID: 2017821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0935420522274155 3.4316e-08  
a 2.314297553817942 9.9866e-09 au
q 2.097813411168924 8.1698e-08 au
i 7.290212847733003 4.2392e-06 deg
node 58.30011882103241 3.524e-05 deg
peri 220.248244268035 4.4643e-05 deg
M 24.82710625164459 2.8782e-05 deg
tp 2458911.814866638544
(2020-Mar-03.31486664)
0.00010272 TDB
period 1285.959293303026
3.52
8.3237e-06
2.279e-08
d
yr
n .2799466529576756 1.812e-09 deg/d
Q 2.53078169646696 1.0921e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1266  
   data-arc span      24959 days (68.33 yr)  
   first obs. used      1952-01-30  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5347  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:15:32  

Additional Information
 Earth MOID = 1.08746 au 
 Jupiter MOID = 2.55184 au 
 T_jup = 3.566 
[ 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 15.2   n/a MPO435865  
rotation period rot_per 5.934 h n/a LCDB (Rev. 2019-August); 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.]

17821 Bölsche           Discovered 1998 Mar. 31 by A. Knöfel and J. Kandler at Drebach.
Wilhelm Bölsche (1861-1939) was a naturalist, poet and writer. With his book Das Liebesleben in der Natur, he is considered the father of modern popular-science books in Germany. Bölsche, a protagonist of Darwinism, wrote popular biographies on Darwin and Haeckel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1998 FC127 = 1998 HQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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