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49880 (1999 XP135)
Classification: Main-belt Asteroid          SPK-ID: 2049880
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21559582286335 3.764e-08  
a 2.164885293540759 5.8265e-09 au
q 1.698145067275074 8.0073e-08 au
i 2.821049314126343 3.1719e-06 deg
node 135.2721279295832 8.2891e-05 deg
peri 222.45779427756 8.3439e-05 deg
M 215.2376923381313 1.1813e-05 deg
tp 2459468.346903082291
(2021-Sep-10.84690308)
3.9398e-05 TDB
period 1163.458139276326
3.19
4.697e-06
1.286e-08
d
yr
n .3094223916160154 1.2492e-09 deg/d
Q 2.631625519806444 7.0827e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1257  
   data-arc span      8505 days (23.29 yr)  
   first obs. used      1997-01-14  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57644  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:58:02  

Additional Information
 Earth MOID = .695348 au 
 Jupiter MOID = 2.81467 au 
 T_jup = 3.662 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456798.5 (2014-May-21.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2158247025899205 3.7643e-08  
q 1.697792592003949 8.0115e-08 au
tp 2457139.739268071052
(2015-Apr-27.23926807)
3.3768e-05 TDB
node 135.3146013532892 8.2824e-05 deg
peri 222.181486083903 8.337e-05 deg
i 2.821491824333938 3.174e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1257  
   data-arc span      8505 days (23.29 yr)  
   first obs. used      1997-01-14  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57644  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:58:02  

Additional Information
 Jupiter MOID = 2.81467 au 
 T_jup = 3.662 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.416969977250853E-15 -3.011326698051842E-15 6.122153296420038E-13 -1.661799974439599E-14 1.554684843818408E-13 -5.012637410445572E-16
q -3.011326698051842E-15 6.418344209612635E-15 -1.248521733630147E-12 3.449718409300392E-14 -3.16676974014671E-13 9.99486707141697E-16
tp 6.122153296420038E-13 -1.248521733630147E-12 1.140279451275756E-9 -2.64225338397526E-11 3.402656448699591E-10 -1.197977342461757E-12
node -1.661799974439599E-14 3.449718409300392E-14 -2.64225338397526E-11 6.859825976684907E-9 -6.858137008200281E-9 2.264125854024665E-11
peri 1.554684843818408E-13 -3.16676974014671E-13 3.402656448699591E-10 -6.858137008200281E-9 6.950616855344565E-9 -2.294223009216097E-11
i -5.012637410445572E-16 9.99486707141697E-16 -1.197977342461757E-12 2.264125854024665E-11 -2.294223009216097E-11 1.00741136123384E-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 15.6   n/a MPO452848  
rotation period rot_per 11.111 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Childers, D.; Church, A. (2007) Minor Planet Bull. 34, 124-125.]

49880 (1999 XP135)          Discovered 1999-Dec-08 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XP135 = 1998 HN96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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