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1306 Scythia (1930 OB)
Classification: Main-belt Asteroid          SPK-ID: 2001306
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09576264761511562 3.6148e-08  
a 3.141948071906351 1.4437e-08 au
q 2.841066805871391 1.1516e-07 au
i 14.98800513128286 4.6404e-06 deg
node 274.0722439159061 1.552e-05 deg
peri 141.439956458306 2.9291e-05 deg
M 316.7936425011583 2.5424e-05 deg
tp 2459244.641768072589
(2021-Jan-30.14176807)
0.00014392 TDB
period 2034.21537000633
5.57
1.4021e-05
3.839e-08
d
yr
n .1769724117259421 1.2198e-09 deg/d
Q 3.442829337941311 1.582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2295  
   data-arc span      32653 days (89.40 yr)  
   first obs. used      1930-07-22  
   last obs. used      2019-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39719  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:51:19  

Additional Information
 Earth MOID = 1.87015 au 
 Jupiter MOID = 1.8661 au 
 T_jup = 3.150 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.6   n/a MPO502165 IRAS observations used: 16
diameter diameter 66.780 km 0.710 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.525 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.035   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.853   0.147 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=1.56, mean=2.00, max.=2.43) deg.
U-B UB 0.398   0.053 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=1.56, mean=2.00, max.=2.43) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1306 Scythia (1930 OB)          Discovered 1930-Jul-22 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1930 OB = 1933 DN = 1935 OA = 1951 JB = 1956 EM1 = 1957 KQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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