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1058 Grubba (1925 MA)
Classification: Main-belt Asteroid          SPK-ID: 2001058
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1874187450340704 2.7355e-08  
a 2.196370395392569 4.7199e-09 au
q 1.784729412258109 5.9376e-08 au
i 3.692198726688602 3.5902e-06 deg
node 221.7322759214376 4.7253e-05 deg
peri 94.37546837083651 4.8516e-05 deg
M 92.4442818976334 1.2754e-05 deg
tp 2458895.194694612879
(2020-Feb-15.69469461)
4.164e-05 TDB
period 1188.931404768446
3.26
3.8324e-06
1.049e-08
d
yr
n .3027929101343848 9.7603e-10 deg/d
Q 2.60801137852703 5.6045e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3091  
   data-arc span      41703 days (114.18 yr)  
   first obs. used      1906-11-15  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41183  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:52:08  

Additional Information
 Earth MOID = .774012 au 
 Jupiter MOID = 2.68254 au 
 T_jup = 3.643 
[ 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 11.72   n/a E2021B10  
diameter diameter 10.920 km 0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 46.30 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Ferrero, A. (2014) Minor Planet Bull. 41, 24-25.]
geometric albedo albedo 0.201   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.880   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.45 deg.
U-B UB 0.500   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.45 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979)
SMASSII spectral type spec_B S   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)

1058 Grubba (1925 MA)          Discovered 1925-Jun-22 by Shajn, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1925 MA = 1932 WO = 1955 YH = A906 VG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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