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1090 Sumida (1928 DG)
Classification: Main-belt Asteroid          SPK-ID: 2001090
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2197495130419382 3.1514e-08  
a 2.360512506880373 5.5814e-09 au
q 1.841791032964007 7.3572e-08 au
i 21.52608480690604 3.7065e-06 deg
node 147.9550609405827 7.6103e-06 deg
peri 338.0130150153793 1.0839e-05 deg
M 183.0323944625571 9.2691e-06 deg
tp 2459651.677160376613
(2022-Mar-13.17716038)
3.5523e-05 TDB
period 1324.670563426826
3.63
4.6982e-06
1.286e-08
d
yr
n .271765682683177 9.6387e-10 deg/d
Q 2.87923398079674 6.8079e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2813  
   data-arc span      33872 days (92.74 yr)  
   first obs. used      1928-02-20  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:58:15  

Additional Information
 Earth MOID = .866794 au 
 Jupiter MOID = 2.197 au 
 T_jup = 3.427 
[ 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 12.5   n/a MPO492762  
diameter diameter 12.977 km 0.438 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 2.719 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Wisniewski, W.Z. (1991) Icarus 90, 117-122.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]
[Warner, B.D.; Megna, R. (2012) Minor Planet Bull. 39, 231.]
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Lang, K. (2017) Minor Planet Bull. 44, 7-8.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.]
geometric albedo albedo 0.311   0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.693   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=10.57 deg.
U-B UB 0.224   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=10.57 deg.

1090 Sumida (1928 DG)          Discovered 1928-Feb-20 by Oikawa, O. at Tokyo
Independent discovery Feb. 24 by K. Reinmuth, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1928 DG = 1950 JK = 1957 HH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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