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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1874530705246228 3.0285e-08  
a 2.196140484181435 5.0627e-09 au
q 1.784467207118193 6.6512e-08 au
i 3.692440829528138 3.6766e-06 deg
node 221.7321991905942 5.2196e-05 deg
peri 94.33651610721807 5.3375e-05 deg
M 31.91245794320061 1.2969e-05 deg
tp 2458895.122871877843
(2020-Feb-15.62287188)
4.2636e-05 TDB
period 1188.744727576186
3.25
4.1106e-06
1.125e-08
d
yr
n .3028404598975837 1.0472e-09 deg/d
Q 2.607813761244677 6.0117e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2900  
   data-arc span      41623 days (113.96 yr)  
   first obs. used      1906-11-15  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:22:57  

Additional Information
 Earth MOID = .775707 au 
 Jupiter MOID = 2.68298 au 
 T_jup = 3.643 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456569.5 (2013-Oct-04.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1876678770519704 3.0281e-08  
q 1.784039317787569 6.6552e-08 au
tp 2456516.174133556693
(2013-Aug-11.67413356)
3.903e-05 TDB
node 221.8890221525156 5.2214e-05 deg
peri 93.96463249474091 5.3389e-05 deg
i 3.69140340499384 3.6765e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2900  
   data-arc span      41623 days (113.96 yr)  
   first obs. used      1906-11-15  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:22:57  

Additional Information
 Jupiter MOID = 2.68298 au 
 T_jup = 3.643 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.16920892194399E-16 -2.011360360513581E-15 -1.353853691198703E-13 2.241201327035495E-15 -2.984043604208875E-14 2.396051618609649E-16
q -2.011360360513581E-15 4.429134987463018E-15 3.569074718883627E-13 -6.199761470952334E-15 8.223751079374694E-14 -4.820426377894486E-16
tp -1.353853691198703E-13 3.569074718883627E-13 1.523375064405579E-9 -1.58890268256602E-11 4.452139502691605E-10 7.105665655343075E-13
node 2.241201327035495E-15 -6.199761470952334E-15 -1.58890268256602E-11 2.726252463898734E-9 -2.724273798131246E-9 -1.266690765221134E-12
peri -2.984043604208875E-14 8.223751079374694E-14 4.452139502691605E-10 -2.724273798131246E-9 2.850365016363735E-9 1.443803339650826E-12
i 2.396051618609649E-16 -4.820426377894486E-16 7.105665655343075E-13 -1.266690765221134E-12 1.443803339650826E-12 1.35165483694233E-11

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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