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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3625128269034621 1.5048e-08  
a 2.197763974802947 5.3567e-09 au
q 1.401046343430542 3.278e-08 au
i 22.18323418585184 8.7478e-07 deg
node 254.8313466091619 1.6569e-06 deg
peri 94.3281416035441 2.1343e-06 deg
M 28.26736181707519 3.4377e-06 deg
tp 2459303.055707683992
(2021-Mar-29.55570768)
1.1057e-05 TDB
period 1190.063135408776
3.26
4.3509e-06
1.191e-08
d
yr
n .3025049590132401 1.106e-09 deg/d
Q 2.994481606175353 7.2986e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2006  
   data-arc span      15412 days (42.20 yr)  
   first obs. used      1978-07-07  
   last obs. used      2020-09-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40802  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:39:54  

Additional Information
 Earth MOID = .592944 au 
 Jupiter MOID = 2.9054 au 
 T_jup = 3.489 
[ 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 12.71   n/a E2021B10  
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 173.4 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
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

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