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2441 Hibbs (1979 MN2)
Classification: Main-belt Asteroid          SPK-ID: 2002441
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1934853127531466 3.9287e-08  
a 2.408397166274872 8.2884e-09 au
q 1.942407687324386 9.3304e-08 au
i 3.742657183580959 3.5659e-06 deg
node 140.1294653198351 5.7732e-05 deg
peri 216.90494732 5.8379e-05 deg
M 185.7849509100122 1.0501e-05 deg
tp 2459261.153522695477
(2021-Feb-15.65352270)
4.1299e-05 TDB
period 1365.182109196102
3.74
7.0473e-06
1.929e-08
d
yr
n .2637010824965973 1.3613e-09 deg/d
Q 2.874386645225357 9.8921e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1899  
   data-arc span      22473 days (61.53 yr)  
   first obs. used      1957-10-30  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49978  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 20:59:17  

Additional Information
 Earth MOID = .9387 au 
 Jupiter MOID = 2.56654 au 
 T_jup = 3.493 
[ 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 13.9   n/a MPO337268  
diameter diameter 9.93 km 0.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 5.926 h n/a LCDB (Rev. 2019-January); 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 0.0494   0.009 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3

2441 Hibbs (1979 MN2)          Discovered 1979-Jun-25 by Helin, E. F. and Bus, S. J. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1979 MN2 = 1957 UK = 1972 TH2 = 1976 YA3 = 1977 AJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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