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74567 (1999 NP6)
Classification: Main-belt Asteroid          SPK-ID: 2074567
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1803319167717019 3.7186e-08  
a 2.194610138247637 9.221e-09 au
q 1.798851885450831 8.3144e-08 au
i 1.269900621723485 5.0126e-06 deg
node 262.2823715185928 0.00019098 deg
peri 92.72250614896164 0.00019156 deg
M 352.0396874682068 1.6566e-05 deg
tp 2458626.758028588367
(2019-May-23.25802859)
5.4718e-05 TDB
period 1187.502406979307
3.25
7.4842e-06
2.049e-08
d
yr
n .3031572802582733 1.9106e-09 deg/d
Q 2.590368391044443 1.0884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      696  
   data-arc span      10552 days (28.89 yr)  
   first obs. used      1991-01-13  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55837  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:26:46  

Additional Information
 Earth MOID = .793733 au 
 Jupiter MOID = 2.84539 au 
 T_jup = 3.648 
[ 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 16.1   n/a MPO439562  
diameter diameter 1.328 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.91 h n/a LCDB (Rev. 2019-January); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.364   0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74567 (1999 NP6)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 NP6 = 1996 TD66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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