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JPL Small-Body Database Browser
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80044 (1999 JN40)
Classification: Outer Main-belt Asteroid          SPK-ID: 2080044
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 .116678853023275 5.0907e-08  
a 3.219586693189165 2.5653e-08 au
q 2.843929010618854 1.6664e-07 au
i 11.3069445816077 5.5167e-06 deg
node 60.10699079853676 2.6351e-05 deg
peri 281.7828502573398 3.451e-05 deg
M 129.4444311840545 2.4735e-05 deg
tp 2458241.783579871877
(2018-May-03.28357987)
0.00014336 TDB
period 2110.078500462912
5.78
2.5219e-05
6.905e-08
d
yr
n .170609766376475 2.0391e-09 deg/d
Q 3.595244375759476 2.8646e-08 au
  Orbit Determination Parameters
   # obs. used (total)      993  
   data-arc span      7957 days (21.79 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49841  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 12:34:09  

Additional Information
 Earth MOID = 1.8649 au 
 Jupiter MOID = 1.88823 au 
 T_jup = 3.148 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456742.5 (2014-Mar-26.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .11228205005413 4.9225e-08  
q 2.862768710426705 1.5875e-07 au
tp 2456115.372306472428
(2012-Jul-06.87230647)
0.00015047 TDB
node 60.63800394128326 2.631e-05 deg
peri 279.2524697627351 3.5694e-05 deg
i 11.31909321693221 5.5048e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      993  
   data-arc span      7957 days (21.79 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49841  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 12:34:09  

Additional Information
 Jupiter MOID = 1.88823 au 
 T_jup = 3.148 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.423053340708659E-15 -7.731983542588794E-15 3.044998767317495E-12 1.152587321409555E-15 4.802190759533169E-13 4.182425904189873E-15
q -7.731983542588794E-15 2.520051975010661E-14 -9.605936816672673E-12 6.518176779944324E-15 -1.493905662353742E-12 -1.33078495526957E-14
tp 3.044998767317495E-12 -9.605936816672673E-12 2.264220901409553E-8 1.775375719535011E-11 3.679214541171914E-9 2.972387494878597E-12
node 1.152587321409555E-15 6.518176779944324E-15 1.775375719535011E-11 6.922416031518073E-10 -6.740201170029986E-10 -5.094722154345426E-11
peri 4.802190759533169E-13 -1.493905662353742E-12 3.679214541171914E-9 -6.740201170029986E-10 1.274054120541702E-9 5.019743217057536E-11
i 4.182425904189873E-15 -1.33078495526957E-14 2.972387494878597E-12 -5.094722154345426E-11 5.019743217057536E-11 3.030329571372099E-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 13.7   n/a MPO459365  
diameter diameter 8.610 km 0.343 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 15.743 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.104   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

80044 (1999 JN40)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1999 JN40 = 2001 QH182 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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