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18832 (1999 NV42)
Classification: Main-belt Asteroid          SPK-ID: 2018832
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1246110197400218 4.2194e-08  
a 2.982981729500999 2.3458e-08 au
q 2.611269334322026 1.2903e-07 au
i 10.17730400407337 7.0225e-06 deg
node 340.3463819757599 2.5887e-05 deg
peri 271.3581317177244 4.1417e-05 deg
M 68.64354334187496 3.5139e-05 deg
tp 2458641.684240323126
(2019-Jun-07.18424032)
0.00018287 TDB
period 1881.803694782087
5.15
2.2198e-05
6.077e-08
d
yr
n .1913058205795945 2.2566e-09 deg/d
Q 3.354694124679972 2.6381e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1011  
   data-arc span      9087 days (24.88 yr)  
   first obs. used      1994-09-03  
   last obs. used      2019-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51084  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 00:54:18  

Additional Information
 Earth MOID = 1.62274 au 
 Jupiter MOID = 1.83258 au 
 T_jup = 3.223 
[ 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 14.1   n/a MPO350952  
diameter diameter 4.994 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 57.817 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.214   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18832 (1999 NV42)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NV42 = 1994 RN17 = 1998 FV111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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