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27978 Lubosluka (1997 UN9)
Classification: Main-belt Asteroid          SPK-ID: 2027978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .136379771974221 3.4548e-08  
a 2.629883997572545 8.7363e-09 au
q 2.271221017664949 9.1177e-08 au
i 1.449218987468078 3.8921e-06 deg
node 333.4547964085031 0.00012522 deg
peri 350.6799387306731 0.00012588 deg
M 256.0797408931541 1.4418e-05 deg
tp 2459846.177373575583
(2022-Sep-23.67737358)
6.335e-05 TDB
period 1557.769927428382
4.26
7.7622e-06
2.125e-08
d
yr
n .2310995954288962 1.1515e-09 deg/d
Q 2.988546977480142 9.9278e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2016  
   data-arc span      8652 days (23.69 yr)  
   first obs. used      1997-10-01  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51244  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:30:07  

Additional Information
 Earth MOID = 1.25835 au 
 Jupiter MOID = 2.3137 au 
 T_jup = 3.387 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457102.5 (2015-Mar-21.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1376804414121494 3.4656e-08  
q 2.267159611542178 9.1611e-08 au
tp 2456725.859959783861
(2014-Mar-09.35995978)
5.7377e-05 TDB
node 333.6114234480655 0.00012461 deg
peri 349.722456982806 0.00012526 deg
i 1.454537950045326 3.8963e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2016  
   data-arc span      8652 days (23.69 yr)  
   first obs. used      1997-10-01  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51244  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:30:07  

Additional Information
 Jupiter MOID = 2.3137 au 
 T_jup = 3.387 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.201027571857642E-15 -3.164218477117528E-15 8.012815439621328E-13 3.076073265716971E-15 1.674676731445259E-13 -4.236567752052398E-17
q -3.164218477117528E-15 8.392665594185406E-15 -2.01204250711329E-12 -9.43938933403967E-15 -4.159754565860463E-13 1.416213536409442E-16
tp 8.012815439621328E-13 -2.01204250711329E-12 3.292108245309302E-9 -3.998931526658227E-12 7.455756298366936E-10 -1.161806986427877E-13
node 3.076073265716971E-15 -9.43938933403967E-15 -3.998931526658227E-12 1.552704936029598E-8 -1.552260697578566E-8 1.330788502126473E-10
peri 1.674676731445259E-13 -4.159754565860463E-13 7.455756298366936E-10 -1.552260697578566E-8 1.56912189870632E-8 -1.330599250316387E-10
i -4.236567752052398E-17 1.416213536409442E-16 -1.161806986427877E-13 1.330788502126473E-10 -1.330599250316387E-10 1.518122281579123E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.70   n/a MPCxxxxx  
rotation period rot_per 4.68 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

27978 Lubosluka           Discovered 1997 Oct. 29 by L. Šarounová at Ondřejov.
A significant number of the compositions of Luboš Sluka (b. 1928) were intended for children. For many years he was the editor-in-chief of a musical publishing firm.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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