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26879 Haines (1994 NL2)
Classification: Mars-crossing Asteroid          SPK-ID: 2026879
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3481779225051319 2.7738e-08  
a 2.311532456565997 7.1883e-09 au
q 1.506707888035665 6.284e-08 au
i 21.32238631507222 7.0771e-06 deg
node 230.9481903785901 9.4264e-06 deg
peri 95.1278532807212 1.5549e-05 deg
M 111.1513447943838 1.1096e-05 deg
tp 2458604.166628873679
(2019-Apr-30.66662887)
3.8893e-05 TDB
period 1283.655306819867
3.51
5.9878e-06
1.639e-08
d
yr
n .280449119080001 1.3082e-09 deg/d
Q 3.11635702509633 9.6911e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1281  
   data-arc span      16965 days (46.45 yr)  
   first obs. used      1973-11-01  
   last obs. used      2020-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47628  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:26:28  

Additional Information
 Earth MOID = .668116 au 
 Jupiter MOID = 2.68115 au 
 T_jup = 3.415 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457282.5 (2015-Sep-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3488153879550917 2.755e-08  
q 1.504818945805725 6.2346e-08 au
tp 2457321.512114493673
(2015-Oct-26.01211449)
3.7185e-05 TDB
node 230.9602037741889 9.4283e-06 deg
peri 95.22293403372176 1.5541e-05 deg
i 21.32321344908923 7.0765e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1281  
   data-arc span      16965 days (46.45 yr)  
   first obs. used      1973-11-01  
   last obs. used      2020-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47628  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:26:28  

Additional Information
 Jupiter MOID = 2.68115 au 
 T_jup = 3.415 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.590048238109359E-16 -1.713321551372946E-15 -3.348895718811214E-13 3.690963279723373E-15 -1.331702222079404E-13 -4.125105834506226E-15
q -1.713321551372946E-15 3.886995634360153E-15 8.042022154087875E-13 -8.83975243115634E-15 3.156822457375221E-13 9.553798885898662E-15
tp -3.348895718811214E-13 8.042022154087875E-13 1.382725392622986E-9 -1.421640640917463E-11 4.661273870817301E-10 1.117946987271061E-11
node 3.690963279723373E-15 -8.83975243115634E-15 -1.421640640917463E-11 8.889221648540066E-11 -8.670924911758223E-11 2.896144333872785E-11
peri -1.331702222079404E-13 3.156822457375221E-13 4.661273870817301E-10 -8.670924911758223E-11 2.415202076444903E-10 -2.32928211227735E-11
i -4.125105834506226E-15 9.553798885898662E-15 1.117946987271061E-11 2.896144333872785E-11 -2.32928211227735E-11 5.007720354918079E-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 14.3   n/a MPO502358  
diameter diameter 2.956 km 0.472 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 2.7614 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.378   0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

26879 Haines           Discovered 1994 July 9 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Peter Haines (b. 1960), associate professor of geology with the University of Tasmania, has worked in the field of impact geology for a number of years. He discovered the Goyder and Foelsche impact structures in Northern Territory with strong geological, structural and geophysical evidence.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1994 NL2 = 1973 VA = 1998 XD80 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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