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888 Parysatis (A918 CE)
Classification: Main-belt Asteroid          SPK-ID: 2000888
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1940527457240502 4.2141e-08  
a 2.708565329420372 1.0518e-08 au
q 2.182960790273382 1.1639e-07 au
i 13.84964667622459 4.3616e-06 deg
node 123.94745935 2.0061e-05 deg
peri 298.1280313715604 2.284e-05 deg
M 285.8831032165313 1.2196e-05 deg
tp 2458935.713982830143
(2020-Mar-27.21398283)
5.5883e-05 TDB
period 1628.198684186782
4.46
9.4841e-06
2.597e-08
d
yr
n .221103237274636 1.2879e-09 deg/d
Q 3.234169868567361 1.2559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2283  
   data-arc span      41445 days (113.47 yr)  
   first obs. used      1906-05-13  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46188  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:58:44  

Additional Information
 Earth MOID = 1.23408 au 
 Jupiter MOID = 2.15977 au 
 T_jup = 3.295 
[ 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 9.51   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23
diameter diameter 44.749 km 0.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.9314 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Fleenor, M.L. (2007) Minor Planet Bull. 34, 66-67.]
[Benishek, V.; Protitch-Benishek, V. (2008) Minor Planet Bull. 35, 28-30.]
[Mas, V.; Fornas, G.; Lozano, J.; Rodrigo, O.; et al. (2018) Minor Planet Bull. 45, 76-82.]
geometric albedo albedo 0.139   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.879   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=5.73, mean=13.18, max.=17.28) deg.
U-B UB 0.498   0.035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=5.73, mean=13.18, max.=17.28) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

888 Parysatis (A918 CE)          Discovered 1918-Feb-02 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A918 CE = A906 JA = A908 YL = A915 JD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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