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78130 (2002 NL12)
Classification: Main-belt Asteroid          SPK-ID: 2078130
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2009593943753419 5.6417e-08  
a 2.551850816419631 1.2658e-08 au
q 2.03903242181572 1.4461e-07 au
i 5.811767972740712 3.7177e-06 deg
node 115.1743717958348 5.4351e-05 deg
peri 136.729329373733 5.4859e-05 deg
M 168.1428604312955 9.5668e-06 deg
tp 2458305.063822149254
(2018-Jul-05.56382215)
3.7747e-05 TDB
period 1488.954234417621
4.08
1.1079e-05
3.033e-08
d
yr
n .2417804333259496 1.799e-09 deg/d
Q 3.064669211023542 1.5202e-08 au
  Orbit Determination Parameters
   # obs. used (total)      792  
   data-arc span      8632 days (23.63 yr)  
   first obs. used      1997-03-05  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57493  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:28:10  

Additional Information
 Earth MOID = 1.02912 au 
 Jupiter MOID = 1.99784 au 
 T_jup = 3.404 
[ 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 15.4   n/a MPO395706  
diameter diameter 2.623 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.22 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.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
geometric albedo albedo 0.195   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78130 (2002 NL12)          Discovered 2002-Jul-04 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 NL12 = 1997 EP37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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