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JPL Small-Body Database Browser
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1556 Wingolfia (1942 AA)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001556
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1086188349741208 4.9977e-08  
a 3.426551479760562 1.9942e-08 au
q 3.05436345005012 1.6788e-07 au
i 15.750494767 4.1024e-06 deg
node 91.59954368978015 1.8787e-05 deg
peri 268.6709195023153 2.7259e-05 deg
M 255.7459348776333 2.2334e-05 deg
tp 2459671.426299008413
(2022-Apr-01.92629901)
0.00014617 TDB
period 2316.777454764304
6.34
2.0225e-05
5.537e-08
d
yr
n .1553882524450862 1.3565e-09 deg/d
Q 3.798739509471004 2.2108e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2199  
   data-arc span      28509 days (78.05 yr)  
   first obs. used      1942-01-14  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43568  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:58:14  

Additional Information
 Earth MOID = 2.10591 au 
 Jupiter MOID = 1.73809 au 
 T_jup = 3.071 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.5   n/a MPO473785 IRAS observations used: 7
diameter diameter 28.65 km 2.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 7
rotation period rot_per 10. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Dotto, E.; Barucci, M.A.; Fulchignoni, M.; Di Martino, M.; et al. (1992) Astron. Astrophys. Suppl. Ser. 95, 195-211.]
geometric albedo albedo 0.1297   0.023 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 7
B-V BV 0.708   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=3.34, mean=3.36, max.=3.38) deg.
U-B UB 0.202   0.052 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=3.34, mean=3.36, max.=3.38) deg.
Tholen spectral type spec_T XC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1556 Wingolfia (1942 AA)          Discovered 1942-Jan-14 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1942 AA = 1973 AQ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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