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135129 (2001 QR169)
Classification: Main-belt Asteroid          SPK-ID: 2135129
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2403417368437169 3.5851e-08  
a 2.289723848478007 7.8042e-09 au
q 1.739407641842323 8.3064e-08 au
i 4.560416732502403 4.7913e-06 deg
node 332.0236616172277 5.8484e-05 deg
peri 39.44312848206629 5.9613e-05 deg
M 205.0802781163706 1.2812e-05 deg
tp 2459745.099572454017
(2022-Jun-14.59957245)
4.6641e-05 TDB
period 1265.531874829447
3.46
6.4701e-06
1.771e-08
d
yr
n .2844653755153471 1.4543e-09 deg/d
Q 2.840040055113691 9.6798e-09 au
  Orbit Determination Parameters
   # obs. used (total)      701  
   data-arc span      11887 days (32.54 yr)  
   first obs. used      1987-09-26  
   last obs. used      2020-04-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57136  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:11:38  

Additional Information
 Earth MOID = .74049 au 
 Jupiter MOID = 2.63885 au 
 T_jup = 3.556 
[ show covariance matrix ]

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 15.99   n/a E2021B55  

135129 (2001 QR169)          Discovered 2001-Aug-22 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 2001 QR169 = 1987 SD26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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