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1453 Fennia (1938 ED1)
Classification: Inner Main-belt Asteroid          SPK-ID: 2001453
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02826265721502717 3.3478e-08  
a 1.896916532394717 4.6683e-09 au
q 1.843304630674127 6.3832e-08 au
i 23.67386029245653 6.4581e-06 deg
node 7.084557986270519 9.4551e-06 deg
peri 255.0349403505646 0.00012167 deg
M 298.9491293163467 0.00012113 deg
tp 2458762.330404837443
(2019-Oct-05.83040484)
0.00032089 TDB
period 954.2688759241353
2.61
3.5227e-06
9.645e-09
d
yr
n .377252165592604 1.3926e-09 deg/d
Q 1.950528434115306 4.8002e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2004  
   data-arc span      29624 days (81.11 yr)  
   first obs. used      1938-04-02  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35528  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:23:15  

Additional Information
 Earth MOID = .877636 au 
 Jupiter MOID = 3.04714 au 
 T_jup = 3.849 
[ 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 12.6   n/a MPO473783  
diameter diameter 6.573 km 0.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 4.4121 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Harris, A.W.; Pravec, P.; Stephens, R.D.; et al. (2007) CBET 1150.]
[Warner, B.D.; Harris, A.W.; Pravec, P.; Stephens, R.D.; et al. (2008) Minor Planet Bull. 35, 73-74.]
[Higgins, D.; Oey, J.; Pravec, P. (2011) Minor Planet Bull. 38, 46-49.]
[Pravec, P.; Scheirich, P.; Vokrouhlicky, D.; Harris, A.W.; et al. (2012) Icarus 218, 125-143. See also supplemental on-line material.]
[Santana-Ros, T.; Marciniak, A.; Bartczak, P. (2016) Minor Planet Bull. 43, 205-207.]
[Warner, B.D. (2016) Minor Planet Bull. 43, 227-233.]
geometric albedo albedo 0.409   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.928   0.045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=15.13, mean=17.93, max.=23.51) deg.
U-B UB 0.532   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=15.13, mean=17.93, max.=23.51) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1453 Fennia (1938 ED1)          Discovered 1938-Mar-08 by Vaisala, Y. at Turku
Confirmation Mar. 23, shortly after an independent discovery by G. Neujmin, Simeis.
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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