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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1805218734355768 3.3704e-08  
a 2.194960497064404 7.9439e-09 au
q 1.798722116017253 7.381e-08 au
i 1.269888467993462 5.0062e-06 deg
node 262.2817729613527 0.00017092 deg
peri 92.75006946832012 0.00017154 deg
M 113.247009336859 1.5731e-05 deg
tp 2458626.851940739610
(2019-May-23.35194074)
5.1194e-05 TDB
period 1187.786786789432
3.25
6.4482e-06
1.765e-08
d
yr
n .3030846983683612 1.6454e-09 deg/d
Q 2.591198878111556 9.3779e-09 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      10607 days (29.04 yr)  
   first obs. used      1991-01-13  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54633  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:19:01  

Additional Information
 Earth MOID = .794512 au 
 Jupiter MOID = 2.84825 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 16.2   n/a MPO502608  
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-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:
[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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