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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208804301410612 3.4639e-08  
a 3.172490261347406 1.5874e-08 au
q 2.788998273937404 1.1174e-07 au
i 1.547584288432307 4.2988e-06 deg
node 159.1424353401698 0.00013087 deg
peri 317.8542202342071 0.0001319 deg
M 208.0854308080921 1.7184e-05 deg
tp 2459871.455164797138
(2022-Oct-18.95516480)
0.00010025 TDB
period 2063.948579749988
5.65
1.5491e-05
4.241e-08
d
yr
n .1744229500347377 1.3091e-09 deg/d
Q 3.555982248757409 1.7793e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2590  
   data-arc span      42086 days (115.23 yr)  
   first obs. used      1905-03-26  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48057  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:16:13  

Additional Information
 Earth MOID = 1.80549 au 
 Jupiter MOID = 1.53168 au 
 T_jup = 3.190 
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Orbital Elements at Epoch 2456177.5 (2012-Sep-07.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1158988088138793 3.3618e-08  
q 2.807771633160358 1.0726e-07 au
tp 2455721.900462838011
(2011-Jun-09.40046284)
0.0001023 TDB
node 159.5182641162296 0.00013135 deg
peri 315.2072176531269 0.00013256 deg
i 1.54330061913589 4.2919e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2590  
   data-arc span      42086 days (115.23 yr)  
   first obs. used      1905-03-26  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48057  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:16:13  

Additional Information
 Jupiter MOID = 1.53168 au 
 T_jup = 3.190 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.130138157672775E-15 -3.577200793089919E-15 8.240573664195662E-13 -9.772681256143485E-17 1.445342217317459E-13 5.981387575425567E-17
q -3.577200793089919E-15 1.150547711348184E-14 -2.531243792908674E-12 1.287447124952061E-14 -4.523057879754151E-13 9.262057564958181E-17
tp 8.240573664195662E-13 -2.531243792908674E-12 1.046600738974798E-8 -2.304829332929757E-11 1.846913948065403E-9 -6.077802453850447E-13
node -9.772681256143485E-17 1.287447124952061E-14 -2.304829332929757E-11 1.725388979349425E-8 -1.724962820310487E-8 3.213872741541531E-11
peri 1.445342217317459E-13 -4.523057879754151E-13 1.846913948065403E-9 -1.724962820310487E-8 1.757089097136132E-8 -3.219631500302748E-11
i 5.981387575425567E-17 9.262057564958181E-17 -6.077802453850447E-13 3.213872741541531E-11 -3.219631500302748E-11 1.842022592430615E-11

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

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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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