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1405 Sibelius (1936 RE)
Classification: Main-belt Asteroid          SPK-ID: 2001405
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1456796028052546 3.5519e-08  
a 2.252691989066641 6.1513e-09 au
q 1.924520714856834 8.0307e-08 au
i 7.031894593179585 4.2018e-06 deg
node 312.0491906787584 3.3589e-05 deg
peri 95.67934278006774 3.7047e-05 deg
M 244.1890035502083 1.5879e-05 deg
tp 2459397.781595529107
(2021-Jul-02.28159553)
5.4953e-05 TDB
period 1234.955045503675
3.38
5.0583e-06
1.385e-08
d
yr
n .2915085867382115 1.194e-09 deg/d
Q 2.580863263276449 7.0474e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2375  
   data-arc span      25285 days (69.23 yr)  
   first obs. used      1951-02-05  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40748  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:24:05  

Additional Information
 Earth MOID = .949567 au 
 Jupiter MOID = 2.78903 au 
 T_jup = 3.602 
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Orbital Elements at Epoch 2456206.5 (2012-Oct-06.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1458889713479066 3.5443e-08  
q 1.92325597072837 8.0065e-08 au
tp 2455695.121306493244
(2011-May-13.62130649)
5.2473e-05 TDB
node 312.1233989439625 3.3593e-05 deg
peri 95.68181647599461 3.7034e-05 deg
i 7.0325792976693 4.2014e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2375  
   data-arc span      25285 days (69.23 yr)  
   first obs. used      1951-02-05  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40748  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:24:05  

Additional Information
 Jupiter MOID = 2.78903 au 
 T_jup = 3.602 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.256220639405269E-15 -2.831592038149415E-15 -6.072167230267257E-13 1.627465771586759E-15 -1.939706063532798E-13 2.502203927774122E-16
q -2.831592038149415E-15 6.410403857668161E-15 1.370546083851654E-12 -2.750994959453661E-15 4.389819156213685E-13 -3.426519496478877E-16
tp -6.072167230267257E-13 1.370546083851654E-12 2.753460955167186E-9 -1.381951957691663E-11 8.345734088586454E-10 5.328632164947195E-13
node 1.627465771586759E-15 -2.750994959453661E-15 -1.381951957691663E-11 1.128460394140283E-9 -1.123222123191311E-9 4.348074721582926E-11
peri -1.939706063532798E-13 4.389819156213685E-13 8.345734088586454E-10 -1.123222123191311E-9 1.371521125584101E-9 -4.301318002978956E-11
i 2.502203927774122E-16 -3.426519496478877E-16 5.328632164947195E-13 4.348074721582926E-11 -4.301318002978956E-11 1.765204939328788E-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 12.5   n/a MPO250209  
diameter diameter 6.810 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.040 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm]
[Stephens, R.D. (2018) Minor Planet Bull. 45, 135-137.]
geometric albedo albedo 0.388   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1405 Sibelius (1936 RE)          Discovered 1936-Sep-12 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1936 RE = 1951 CO = 1953 VK3 = 1963 ST 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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