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1977 Shura (1970 QY)
Classification: Main-belt Asteroid          SPK-ID: 2001977
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0745546512030886 1.2935e-08  
a 2.781414079940885 9.9925e-09 au
q 2.574046723359533 3.8064e-08 au
i 7.770546712362002 7.8939e-07 deg
node 332.2092023549837 7.5401e-06 deg
peri 309.5652128641086 2.3634e-05 deg
M 58.51460802608902 1.7064e-05 deg
tp 2459121.103320601742
(2020-Sep-28.60332060)
8.0713e-05 TDB
period 1694.325706482894
4.64
9.1305e-06
2.5e-08
d
yr
n .212473905473165 1.145e-09 deg/d
Q 2.988781436522237 1.0737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2755  
   data-arc span      24595 days (67.34 yr)  
   first obs. used      1954-03-07  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42199  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:28:50  

Additional Information
 Earth MOID = 1.56582 au 
 Jupiter MOID = 2.1741 au 
 T_jup = 3.316 
[ 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 11.67   n/a E2021B10  
diameter diameter 17.211 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.461 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Albers, K.; Kragh, K.; Monnier, A.; Pligge, Z.; et al. (2010) Minor Planet Bull. 37, 152-158.]
geometric albedo albedo 0.150   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1977 Shura (1970 QY)          Discovered 1970-Aug-30 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1970 QY = 1942 RW = 1952 UT1 = 1968 DE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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