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1169 Alwine (1930 QH)
Classification: Main-belt Asteroid          SPK-ID: 2001169
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554182570733905 1.6743e-08  
a 2.317532752021549 4.7841e-09 au
q 1.957345850991862 3.879e-08 au
i 4.053938916118359 8.5759e-07 deg
node 255.0674655530179 1.6694e-05 deg
peri 177.1033644341009 2.0638e-05 deg
M 185.9534281702838 6.4812e-06 deg
tp 2460019.517463342688
(2023-Mar-16.01746334)
2.3714e-05 TDB
period 1288.656733916052
3.53
3.9903e-06
1.092e-08
d
yr
n .2793606633366275 8.6504e-10 deg/d
Q 2.677719653051236 5.5277e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3128  
   data-arc span      33217 days (90.94 yr)  
   first obs. used      1930-08-30  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42552  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:24:13  

Additional Information
 Earth MOID = .971849 au 
 Jupiter MOID = 2.58386 au 
 T_jup = 3.560 
[ 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 12.88   n/a E2021B10  
diameter diameter 8.100 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.9272 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Bonamico, R. (2020) Minor Planet Bull. 47, 222-223.]
[Polakis, T. (2020) Minor Planet Bull. 47, 177-186.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm]
[Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 224-230.]
geometric albedo albedo 0.170   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1169 Alwine (1930 QH)          Discovered 1930-Aug-30 by Wolf, M. and Ferrero, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1930 QH = 1937 VH = 1955 SK1 = 1955 SR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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