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160258 (2002 QB25)
Classification: Inner Main-belt Asteroid          SPK-ID: 2160258
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1183545995488684 3.0624e-08  
a 1.907775662357351 6.2859e-09 au
q 1.681981637809969 6.0301e-08 au
i 19.0176899537756 6.6481e-06 deg
node 238.2503688736083 1.0644e-05 deg
peri 101.7288782491176 3.2273e-05 deg
M 354.9569504978919 3.0208e-05 deg
tp 2459213.982800656501
(2020-Dec-30.48280066)
8.0789e-05 TDB
period 962.4748347822547
2.64
4.7569e-06
1.302e-08
d
yr
n .3740357534453818 1.8486e-09 deg/d
Q 2.133569686904732 7.0299e-09 au
  Orbit Determination Parameters
   # obs. used (total)      779  
   data-arc span      7756 days (21.23 yr)  
   first obs. used      1999-06-14  
   last obs. used      2020-09-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47652  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:00:36  

Additional Information
 Earth MOID = .773514 au 
 Jupiter MOID = 3.17594 au 
 T_jup = 3.864 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457793.5 (2017-Feb-09.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1183358728041623 3.0632e-08  
q 1.682097337081857 6.0294e-08 au
tp 2458251.587719145316
(2018-May-13.08771915)
7.8994e-05 TDB
node 238.274032412317 1.0644e-05 deg
peri 101.7404399756814 3.2271e-05 deg
i 19.0165939808148 6.6478e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      779  
   data-arc span      7756 days (21.23 yr)  
   first obs. used      1999-06-14  
   last obs. used      2020-09-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47652  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:00:36  

Additional Information
 Jupiter MOID = 3.17594 au 
 T_jup = 3.864 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.382972839455643E-16 -1.839801937787429E-15 4.110376459431843E-14 1.5305700037074E-15 4.358052745456197E-14 -3.281452261815129E-15
q -1.839801937787429E-15 3.635359096412075E-15 8.472001510738572E-14 -4.659871149127526E-15 -2.504937009365681E-14 7.447994226130004E-15
tp 4.110376459431843E-14 8.472001510738572E-14 6.240053060897329E-9 -4.122310095528266E-11 2.410939736189941E-9 1.191850643880711E-11
node 1.5305700037074E-15 -4.659871149127526E-15 -4.122310095528266E-11 1.132944479561288E-10 -1.219053300877235E-10 2.143095290070638E-11
peri 4.358052745456197E-14 -2.504937009365681E-14 2.410939736189941E-9 -1.219053300877235E-10 1.041399136024553E-9 -1.610004397133679E-11
i -3.281452261815129E-15 7.447994226130004E-15 1.191850643880711E-11 2.143095290070638E-11 -1.610004397133679E-11 4.419366979275715E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.37   n/a E2021B55  
rotation period rot_per 10.1123 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.]

160258 (2002 QB25)          Discovered 2002-Aug-28 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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