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15778 (1993 NH)
Classification: Mars-crossing Asteroid          SPK-ID: 2015778
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .31209769433278 4.5942e-08  
a 2.304336097073036 1.1467e-08 au
q 1.585158114208745 1.064e-07 au
i 22.26487468707846 8.4815e-06 deg
node 245.7619768723189 1.2955e-05 deg
peri 81.11986734313102 1.9753e-05 deg
M 221.2114265283286 1.5265e-05 deg
tp 2459493.070470691296
(2021-Oct-05.57047069)
5.6284e-05 TDB
period 1277.665480761361
3.50
9.5367e-06
2.611e-08
d
yr
n .2817638931478966 2.1031e-09 deg/d
Q 3.023514079937328 1.5045e-08 au
  Orbit Determination Parameters
   # obs. used (total)      606  
   data-arc span      13201 days (36.14 yr)  
   first obs. used      1983-12-06  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54141  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:27:38  

Additional Information
 Earth MOID = .730482 au 
 Jupiter MOID = 2.64094 au 
 T_jup = 3.428 
[ 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 14.8   n/a MPO467865  
diameter diameter 2.861 km 0.509 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 113. 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:
[Warner, B.D. (2015) Minor Planet Bull. 42, 60-66.]
geometric albedo albedo 0.327   0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

15778 (1993 NH)          Discovered 1993-Jul-15 by Helin, E. F. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 NH = 1983 XO = 1986 LK = 1993 LB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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