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2579 Spartacus (1977 PA2)
Classification: Main-belt Asteroid          SPK-ID: 2002579
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07497464107715991 3.2177e-08  
a 2.210083924191611 5.9733e-09 au
q 2.044383675224944 7.0346e-08 au
i 5.776631897224645 3.0396e-06 deg
node 280.9397203323227 3.7372e-05 deg
peri 333.6895055543262 4.4412e-05 deg
M 78.59142695248735 2.4802e-05 deg
tp 2458738.510281255082
(2019-Sep-12.01028126)
8.2602e-05 TDB
period 1200.08380564447
3.29
4.8653e-06
1.332e-08
d
yr
n .2999790500519856 1.2161e-09 deg/d
Q 2.375784173158278 6.4211e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2431  
   data-arc span      16839 days (46.10 yr)  
   first obs. used      1974-09-22  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:08:00  

Additional Information
 Earth MOID = 1.03102 au 
 Jupiter MOID = 2.66138 au 
 T_jup = 3.648 
[ show covariance matrix ]

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 13.5   n/a MPO492781  
diameter diameter 4.604 km 0.369 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.63599 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2012) http://www.minorplanetobserver.com/PDO/PDOLightcurves.htm]
[Dykhuis, M.J.; Molnar, L.A.; Gates, C.J.; Gonzales, J.A.; et al. (2016) Icarus 267, 174-203.]
geometric albedo albedo 0.526   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B V   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)

2579 Spartacus (1977 PA2)          Discovered 1977-Aug-14 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 PA2 = 1934 NG1 = 1974 SE4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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