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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .187453063150358 3.6483e-08  
a 2.196140485098461 5.7326e-09 au
q 1.784467224058242 8.1362e-08 au
i 3.692441004774043 3.6905e-06 deg
node 221.7321624322375 5.8348e-05 deg
peri 94.33655342585607 5.9385e-05 deg
M 31.91245617342104 1.3882e-05 deg
tp 2458895.122877655774
(2020-Feb-15.62287766)
4.5591e-05 TDB
period 1188.744728320749
3.25
4.6545e-06
1.274e-08
d
yr
n .3028404597079015 1.1858e-09 deg/d
Q 2.607813746138681 6.8072e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2667  
   data-arc span      41532 days (113.71 yr)  
   first obs. used      1906-11-15  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43793  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:26:58  

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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