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111 Ate (A870 PA)
Classification: Main-belt Asteroid          SPK-ID: 2000111
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 112 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1020423071005958 1.8829e-08  
a 2.595937640838513 5.5425e-09 au
q 2.331042174878073 4.6891e-08 au
i 4.933869854921982 4.0713e-07 deg
node 305.7063455791607 5.2105e-06 deg
peri 167.4503402574759 1.0864e-05 deg
M 206.9250659832483 9.6683e-06 deg
tp 2459850.093081155165
(2022-Sep-27.59308116)
4.218e-05 TDB
period 1527.706091908345
4.18
4.8927e-06
1.34e-08
d
yr
n .2356474206045114 7.5469e-10 deg/d
Q 2.860833106798952 6.1081e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3033  
   data-arc span      54906 days (150.32 yr)  
   first obs. used      1870-08-15  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:52:23  

Additional Information
 Earth MOID = 1.34769 au 
 Jupiter MOID = 2.22202 au 
 T_jup = 3.404 
[ 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 8.2   n/a MPO473761 IRAS observations used: 3
diameter diameter 126.344 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 22.072 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Pilcher, F. (2010) Minor Planet Bull. 37, 119-122.]
[Pilcher, F. (2011) Minor Planet Bull. 38, 183-185.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.062   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.690   0.012 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=11.71, mean=18.59, max.=24.92) deg.
U-B UB 0.389   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=11.71, mean=19.20, max.=24.92) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

111 Ate (A870 PA)          Discovered 1870-Aug-14 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A870 PA = 1935 AA = A911 KE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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