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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219402200447613 1.8885e-08  
a 3.168584531905101 1.3279e-08 au
q 2.782206636854167 6.6074e-08 au
i 1.549141446249913 6.2628e-07 deg
node 159.1426520287573 2.2315e-05 deg
peri 318.2620865655632 1.9058e-05 deg
M 276.8545942146516 9.4139e-06 deg
tp 2459872.308427492859
(2022-Oct-19.80842749)
5.5419e-05 TDB
period 2060.13828761196
5.64
1.295e-05
3.546e-08
d
yr
n .1747455509005172 1.0985e-09 deg/d
Q 3.554962426956036 1.4898e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3247  
   data-arc span      42462 days (116.25 yr)  
   first obs. used      1905-03-26  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:14:50  

Additional Information
 Earth MOID = 1.7991 au 
 Jupiter MOID = 1.53111 au 
 T_jup = 3.191 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457044.5 (2015-Jan-22.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1160760857978321 1.855e-08  
q 2.807728954769771 6.4626e-08 au
tp 2457791.850071007061
(2017-Feb-07.35007101)
5.1503e-05 TDB
node 159.4939049450903 2.2476e-05 deg
peri 315.5535786189346 1.893e-05 deg
i 1.54370416328663 6.2673e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3247  
   data-arc span      42462 days (116.25 yr)  
   first obs. used      1905-03-26  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:14:50  

Additional Information
 Jupiter MOID = 1.53111 au 
 T_jup = 3.191 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.441038027508979E-16 -1.182733457279881E-15 -5.27805866457067E-13 2.128086949012166E-14 -7.161640296387739E-14 7.46819196989925E-16
q -1.182733457279881E-15 4.176563263515467E-15 1.839707161059521E-12 -4.539710724441797E-14 2.171068801921715E-13 -1.697067697454003E-15
tp -5.27805866457067E-13 1.839707161059521E-12 2.652595296055882E-9 5.747220610439064E-10 -1.865185615984465E-10 1.673006780616395E-11
node 2.128086949012166E-14 -4.539710724441797E-14 5.747220610439064E-10 5.051498795849582E-10 -4.01511108493659E-10 1.349458922444982E-11
peri -7.161640296387739E-14 2.171068801921715E-13 -1.865185615984465E-10 -4.01511108493659E-10 3.583560818395484E-10 -1.051407874263728E-11
i 7.46819196989925E-16 -1.697067697454003E-15 1.673006780616395E-11 1.349458922444982E-11 -1.051407874263728E-11 3.927876094367663E-13

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 11.33   n/a E2021B10 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. 2020-October); 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.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
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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