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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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1874187439694551 1.5955e-08  
a 2.196370394007665 4.0765e-09 au
q 1.784729413471051 3.5724e-08 au
i 3.692204166299173 3.4779e-07 deg
node 221.7323488186984 1.4927e-05 deg
peri 94.37538656976193 1.6081e-05 deg
M 92.44429148632891 6.6644e-06 deg
tp 2458895.194663234138
(2020-Feb-15.69466323)
2.1707e-05 TDB
period 1188.931403643939
3.26
3.31e-06
9.062e-09
d
yr
n .3027929104207703 8.4298e-10 deg/d
Q 2.608011374544279 4.8405e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3227  
   data-arc span      41768 days (114.35 yr)  
   first obs. used      1906-11-15  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40869  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:08:34  

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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