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561 Ingwelde (A905 FC)
Classification: Main-belt Asteroid          SPK-ID: 2000561
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208804289157855 3.4369e-08  
a 3.172490260305852 1.5289e-08 au
q 2.788998276908929 1.113e-07 au
i 1.54758499847034 4.2745e-06 deg
node 159.1424980749794 0.00012442 deg
peri 317.8541584293824 0.00012545 deg
M 208.0854303323892 1.7077e-05 deg
tp 2459871.455167095521
(2022-Oct-18.95516710)
9.9821e-05 TDB
period 2063.948578733571
5.65
1.492e-05
4.085e-08
d
yr
n .1744229501206344 1.2608e-09 deg/d
Q 3.555982243702775 1.7137e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2700  
   data-arc span      42133 days (115.35 yr)  
   first obs. used      1905-03-26  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47253  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:18:10  

Additional Information
 Earth MOID = 1.80549 au 
 Jupiter MOID = 1.53168 au 
 T_jup = 3.190 
[ 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 11.2   n/a MPO492755 IRAS observations used: 7
diameter diameter 31.562 km 0.466 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 12.012 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Strabla, L.; Quadri, U.; Girelli, R.; Pilcher, F. (2012) Minor Planet Bull. 39, 154-155.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.058   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.745   0.047 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.10, mean=7.31, max.=7.51) deg.
Tholen spectral type spec_T XCU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 1 color indices

561 Ingwelde (A905 FC)          Discovered 1905-Mar-26 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A905 FC = 1931 XR = 1942 VM = 1944 DB = 1953 VP = 1967 GP = 1970 SX = 1970 WQ = 1972 BH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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