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9532 Abramenko (1981 RQ2)
Classification: Main-belt Asteroid          SPK-ID: 2009532
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1823660494229418 3.581e-08  
a 2.594290751512056 9.3905e-09 au
q 2.121180196104327 9.146e-08 au
i 10.17641537031919 4.5443e-06 deg
node 230.6389916469543 2.116e-05 deg
peri 91.49548213919441 2.4798e-05 deg
M 126.7860630738649 1.4863e-05 deg
tp 2458462.979027656988
(2018-Dec-10.47902766)
6.1626e-05 TDB
period 1526.252534008788
4.18
8.2868e-06
2.269e-08
d
yr
n .2358718442579354 1.2807e-09 deg/d
Q 3.067401306919784 1.1103e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1935  
   data-arc span      15979 days (43.75 yr)  
   first obs. used      1976-05-03  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47401  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:21:36  

Additional Information
 Earth MOID = 1.13872 au 
 Jupiter MOID = 2.33398 au 
 T_jup = 3.372 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456706.5 (2014-Feb-18.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842476497120864 3.5892e-08  
q 2.115351347750105 9.1843e-08 au
tp 2456937.335154111550
(2014-Oct-06.83515411)
5.7546e-05 TDB
node 230.7021230770201 2.1192e-05 deg
peri 91.4480282054551 2.4739e-05 deg
i 10.17033847303506 4.5429e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1935  
   data-arc span      15979 days (43.75 yr)  
   first obs. used      1976-05-03  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47401  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:21:36  

Additional Information
 Jupiter MOID = 2.33398 au 
 T_jup = 3.372 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.288260327020779E-15 -3.285691120693634E-15 4.102157382055356E-13 1.383607762631708E-15 5.104587914557365E-14 2.508127630712399E-16
q -3.285691120693634E-15 8.435216406330149E-15 -9.190990447008502E-13 -3.140384671162508E-15 -1.053843665408858E-13 -3.216782781017938E-16
tp 4.102157382055356E-13 -9.190990447008502E-13 3.311547914437038E-9 8.405311736134479E-14 7.439541861165092E-10 6.928231018988922E-13
node 1.383607762631708E-15 -3.140384671162508E-15 8.405311736134479E-14 4.491102878031062E-10 -4.416791196723138E-10 -2.236297261402082E-12
peri 5.104587914557365E-14 -1.053843665408858E-13 7.439541861165092E-10 -4.416791196723138E-10 6.120341451182741E-10 2.262572655772994E-12
i 2.508127630712399E-16 -3.216782781017938E-16 6.928231018988922E-13 -2.236297261402082E-12 2.262572655772994E-12 2.063776046472833E-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 12.9   n/a MPO350878  
diameter diameter 6.251 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.329   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

9532 Abramenko (1981 RQ2)          Discovered 1981-Sep-07 by Karachkina, L. G. at Nauchnyj
Reference: 19981110/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1981 RQ2 = 1976 JL6 = 1981 SY = 1981 TE1 = 1981 UD13 = 1993 LD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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