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44 Nysa
Classification: Main-belt Asteroid          SPK-ID: 2000044
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 96 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1486060636919853 3.6319e-08  
a 2.423219522026014 3.4998e-09 AU
q 2.063114407396154 8.7791e-08 AU
i 3.706428148003618 4.185e-06 deg
node 131.5605857207327 6.0544e-05 deg
peri 343.4982606449655 6.1791e-05 deg
M 332.2612234965031 1.3031e-05 deg
tp 2456906.662800444316
(2014-Sep-06.16280044)
4.9913e-05 JED
period 1377.80439433353
3.77
2.9849e-06
8.172e-09
d
yr
n .2612852749494523 5.6606e-10 deg/d
Q 2.783324636655874 4.0199e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2083  
   data-arc span      54766 days (149.94 yr)  
   first obs. used      1864-03-02  
   last obs. used      2014-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .64171  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 17:47:02  

Additional Information
 Earth MOID = 1.07956 AU 
 T_jup = 3.494 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.03 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
magnitude slope G 0.46   n/a PDS3 (MPC 17257) Fit
diameter diameter 70.64 km 4.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
rotation period rot_per 6.422 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Bianchi, E.; Padova, E. (1920) Mem. Soc. Astron. Ital. 1, 56-65.]
[Padova, E. (1921) Mem. Soc. Astron. Ital. 2, 82.]
[Shatzel, A.V. (1954) Astrophys. J. 120, 547-550.]
[Groeneveld, I.; Kuiper, G.P. (1954) Astrophys. J. 120, 529-546.]
[Cailliate, C. (1956) Publ. Observ. Lyon 3, fasc. 28.]
[Chang, Y.C.; Chang, C.-s. (1962) Acta Astron. Sin. 10, 101-111.]
[Gehrels, T.; Owings, D. (1962) Astrophys. J. 135, 906-924.]
[Yang, X.-y.; Zhang, Y.-y.; Li, X.-q. (1965) Acta Astron. Sin. 13, 66-74.]
[Zappala, V.; van Houten-Groeneveld, I. (1979) Icarus 40, 289-296.]
[Birch, P.V.; Tedesco, E.F.; Taylor, R.C.; Binzel, R.P.; et al. (1983) Icarus 54, 1-12.]
[Magnusson, P. (1983) in Asteroids, Comets, Meteors. C.-I. Lagerkvist, H. Rickman, eds. Uppsala, pp. 77-85.]
[Taylor, R.C.; Tedesco, E.F. (1983) Icarus 54, 13-22.]
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Magnusson, P. (1986) Icarus 68, 1-39.]
[Lagerkvist, C.-I.; Williams, I.P. (1987) Astron. Astrophys. Suppl. Ser. 68, 295-315.]
[Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.]
[Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1988) Astron. Astrophys. Suppl. Ser. 73, 395-405.]
[Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1989) Astron. Astrophys. Suppl. Ser. 78, 519-532.]
[Harris, A.W.; Young, J.W.; Contreiras, L.; Dockweiler, T.; et al. (1989) Icarus 81, 365-374.]
[De Angelis, G. (1993) Planet. Space Sci. 41, 285-290.]
[Kaasalainen, M.; Torppa, J.; Piironen, J. (2002) Astron. Astrophys. 383, L19-L22.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Rosenbush, V.K.; Shevchenko, V.G.; Kiselev, N.N.; Sergeev, A.V.; et al. (2009) Icarus 201, 655-665.]
geometric albedo albedo 0.5458   0.067 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
B-V BV .703 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=19; phase (min.=4.95, mean=15.61, max.=27.78) deg.
U-B UB .245 mag .030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=18; phase (min.=5.27, mean=17.16, max.=27.78) deg.
Tholen spectral type spec_T E   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Xc   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)

44 Nysa          Discovered 1857-May-27 by Goldschmidt, H. at Paris
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 CE 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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