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4558 Janesick (1988 NF)
Classification: Mars-crossing Asteroid          SPK-ID: 2004558
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 .362591828101529 4.4332e-08  
a 2.197599918779697 6.2875e-09 au
q 1.400768146793595 9.8107e-08 au
i 22.1863363313315 4.3457e-06 deg
node 254.8371884656645 1.3107e-05 deg
peri 94.36042240055905 1.3885e-05 deg
M 268.4487130683377 8.2276e-06 deg
tp 2459303.110034583235
(2021-Mar-29.61003458)
2.8161e-05 TDB
period 1189.929886308224
3.26
5.1067e-06
1.398e-08
d
yr
n .302538833709695 1.2984e-09 deg/d
Q 2.994431690765798 8.5672e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1888  
   data-arc span      15321 days (41.95 yr)  
   first obs. used      1978-07-07  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40936  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:11:00  

Additional Information
 Earth MOID = .593121 au 
 Jupiter MOID = 2.90614 au 
 T_jup = 3.489 
[ 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 12.6   n/a MPO337290  
diameter diameter 7.326 km 1.400 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 100. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
geometric albedo albedo 0.290   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
SMASSII spectral type spec_B S   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)

4558 Janesick (1988 NF)          Discovered 1988-Jul-12 by Maury and Mueller at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1988 NF = 1975 XG2 = 1978 NW3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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