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78168 (2002 NZ30)
Classification: Main-belt Asteroid          SPK-ID: 2078168
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07827102703077611 4.9489e-08  
a 2.968121599407719 2.2986e-08 au
q 2.735803673469846 1.5012e-07 au
i 11.21061867490785 4.8562e-06 deg
node 105.7098603483621 3.2328e-05 deg
peri 328.5761460151564 5.1969e-05 deg
M 48.68179483775493 3.9356e-05 deg
tp 2458747.928093830863
(2019-Sep-21.42809383)
0.00020394 TDB
period 1867.759529489907
5.11
2.1697e-05
5.94e-08
d
yr
n .1927442983510396 2.239e-09 deg/d
Q 3.20043952534559 2.4786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      770  
   data-arc span      8741 days (23.93 yr)  
   first obs. used      1996-06-08  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5173  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:57  

Additional Information
 Earth MOID = 1.75804 au 
 Jupiter MOID = 2.00596 au 
 T_jup = 3.230 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456812.5 (2014-Jun-04.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07550242396445753 4.9185e-08  
q 2.743150933761457 1.4861e-07 au
tp 2456886.207279526993
(2014-Aug-16.70727953)
0.00021174 TDB
node 105.825259474565 3.2265e-05 deg
peri 329.7117496698925 5.3151e-05 deg
i 11.22102505248429 4.8609e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      770  
   data-arc span      8741 days (23.93 yr)  
   first obs. used      1996-06-08  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5173  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:57  

Additional Information
 Jupiter MOID = 2.00596 au 
 T_jup = 3.230 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.419118501003722E-15 -7.235158627607159E-15 -2.460860037199814E-12 7.908961370881081E-15 -5.719118431534142E-13 2.942559517959543E-15
q -7.235158627607159E-15 2.208529635107831E-14 7.038926316190263E-12 -2.345279768853833E-14 1.641682006909436E-12 -7.877079604491002E-15
tp -2.460860037199814E-12 7.038926316190263E-12 4.483421331317031E-8 -7.906925901015145E-11 9.000769652765603E-9 -1.108428538544161E-11
node 7.908961370881081E-15 -2.345279768853833E-14 -7.906925901015145E-11 1.041048408151527E-9 -1.036268752870302E-9 4.351334674575066E-12
peri -5.719118431534142E-13 1.641682006909436E-12 9.000769652765603E-9 -1.036268752870302E-9 2.825039524422961E-9 -6.577517129386937E-12
i 2.942559517959543E-15 -7.877079604491002E-15 -1.108428538544161E-11 4.351334674575066E-12 -6.577517129386937E-12 2.362855457115687E-11

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 14.7   n/a MPO337845  
diameter diameter 4.021 km 0.925 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.5142 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 0.158   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78168 (2002 NZ30)          Discovered 2002-Jul-08 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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