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19581 (1999 NC3)
Classification: Main-belt Asteroid          SPK-ID: 2019581
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1489790447416533 3.0806e-08  
a 2.668739046995136 1.1188e-08 au
q 2.271152853109051 8.3387e-08 au
i 5.470148590001574 4.2791e-06 deg
node 168.2174924847811 3.4702e-05 deg
peri 145.5117746960122 3.778e-05 deg
M 310.0103410343472 1.5893e-05 deg
tp 2459421.623685899000
(2021-Jul-26.12368590)
7.0544e-05 TDB
period 1592.419883847077
4.36
1.0014e-05
2.742e-08
d
yr
n .2260710279064636 1.4217e-09 deg/d
Q 3.066325240881222 1.2855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1940  
   data-arc span      9094 days (24.90 yr)  
   first obs. used      1995-08-19  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48689  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:58:53  

Additional Information
 Earth MOID = 1.25802 au 
 Jupiter MOID = 2.22621 au 
 T_jup = 3.360 
[ 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 14.04   n/a E2021B10  
diameter diameter 4.928 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 70.4347 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.241   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19581 (1999 NC3)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 NC3 = 1998 DW11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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