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857 Glasenappia (A916 GR)
Classification: Main-belt Asteroid          SPK-ID: 2000857
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 80 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .088793098594669 1.7493e-08  
a 2.19067704125322 4.2891e-09 au
q 1.996160038740145 3.8692e-08 au
i 5.299716054507305 2.2185e-07 deg
node 82.90936245855654 5.0835e-06 deg
peri 238.8014492301148 5.73e-06 deg
M 359.4727199264894 5.4674e-06 deg
tp 2459202.234621881183
1.7989e-05 TDB
period 1184.311542570269
n .3039740702169507 8.9273e-10 deg/d
Q 2.385194043766295 4.67e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3175  
   data-arc span      41863 days (114.61 yr)  
   first obs. used      1906-03-27  
   last obs. used      2020-11-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41554  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:56:48  

Additional Information
 Earth MOID = .987121 au 
 Jupiter MOID = 2.82136 au 
 T_jup = 3.662 
[ 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 11.56   n/a E2021B10 IRAS observations used: 7
diameter diameter 14.497 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 8.20 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Lagerkvist, C.-I.; Bel'skaya, I.; Erikson, A.; Schevchenko, V.; et al. (1998) Astron. Astrophys. Suppl. Ser. 131, 55-62.]
[Angeli, C.A.; Guimaraes, T.A.; Lazzaro, D.; Duffard, R.; et al. (2001) Astron. J. 121, 2245-2252.]
[Behrend, R. (2006) Observatoire de Geneve web site,]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Mansego, E.A.; Rodriguez, P.B.; de Haro, J.L.; Chiner, O.R.; et al. (2016) Minor Planet Bull. 43, 332-336.]
[Baxter, N.; Vent, A.; Montgomer, K.; Davis, C.; et al. (2019) Minor Planet Bull. 46, 111-114.]
geometric albedo albedo 0.271   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
B-V BV 0.630   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=11.45 deg.
U-B UB 0.140   0.035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=11.45 deg.
Tholen spectral type spec_T MU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

857 Glasenappia (A916 GR)          Discovered 1916-Apr-06 by Belyavskij, S. at Simeis
Discovered at Simeis during the First World War while Simeis was not in communication with the Rechen-Institut for long periods of time were given provisional designations containing the Greek letter SIGMA. These are here abbreviated S.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A916 GR = 1953 YC = 1958 HK = A906 FF = A913 MF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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