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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1874530805496294 3.7916e-08  
a 2.196140482647642 5.9248e-09 au
q 1.784467183855591 8.4797e-08 au
i 3.692442109914742 3.676e-06 deg
node 221.732125875966 5.8966e-05 deg
peri 94.33657514190591 5.9997e-05 deg
M 31.91247007720814 1.4262e-05 deg
tp 2458895.122831920911
(2020-Feb-15.62283192)
4.683e-05 TDB
period 1188.74472633085
3.25
4.8105e-06
1.317e-08
d
yr
n .3028404602148412 1.2255e-09 deg/d
Q 2.607813781439692 7.0354e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2619  
   data-arc span      41183 days (112.75 yr)  
   first obs. used      1906-11-15  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44138  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:14:31  

Additional Information
 Earth MOID = .775707 au 
 Jupiter MOID = 2.68298 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 11.7   n/a MPO473777  
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. 2019-August); 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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