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85489 (1997 SV2)
Classification: Main-belt Asteroid          SPK-ID: 2085489
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2354424922710648 4.5972e-08  
a 3.124229649494811 2.4073e-08 au
q 2.388653234390597 1.4365e-07 au
i 23.71673838783249 6.8453e-06 deg
node 191.3096811044295 1.1079e-05 deg
peri 134.8592857581291 1.8575e-05 deg
M 59.82990405710704 1.1488e-05 deg
tp 2458665.280976274310
(2019-Jun-30.78097627)
6.4908e-05 TDB
period 2017.03229251482
5.52
2.3313e-05
6.383e-08
d
yr
n .1784800378932728 2.0628e-09 deg/d
Q 3.859806064599024 2.9741e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      8106 days (22.19 yr)  
   first obs. used      1997-09-19  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55388  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:02:27  

Additional Information
 Earth MOID = 1.43197 au 
 Jupiter MOID = 1.83697 au 
 T_jup = 3.044 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457280.5 (2015-Sep-15.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2397008213852444 4.608e-08  
q 2.370763545478215 1.4469e-07 au
tp 2456651.194265016681
(2013-Dec-24.69426502)
7.074e-05 TDB
node 191.3871172316619 1.1068e-05 deg
peri 134.9062085162059 1.8284e-05 deg
i 23.75598132949395 6.8545e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      8106 days (22.19 yr)  
   first obs. used      1997-09-19  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55388  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:02:27  

Additional Information
 Jupiter MOID = 1.83697 au 
 T_jup = 3.044 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.123321573273931E-15 -6.612199795214164E-15 6.947930380021007E-13 2.277260269564125E-15 9.682856041998654E-14 -1.194404070630612E-14
q -6.612199795214164E-15 2.093392731503974E-14 -2.84871999755517E-12 -1.083087592002082E-14 -4.160993198653755E-13 3.772356564844075E-14
tp 6.947930380021007E-13 -2.84871999755517E-12 5.004136061129643E-9 1.501343471805029E-11 1.033900748808334E-9 -4.480626573163679E-13
node 2.277260269564125E-15 -1.083087592002082E-14 1.501343471805029E-11 1.225073247057496E-10 -1.084341705339513E-10 4.277330313685011E-12
peri 9.682856041998654E-14 -4.160993198653755E-13 1.033900748808334E-9 -1.084341705339513E-10 3.343074712402898E-10 -3.899980741079487E-12
i -1.194404070630612E-14 3.772356564844075E-14 -4.480626573163679E-13 4.277330313685011E-12 -3.899980741079487E-12 4.69835128552568E-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 15.0   n/a MPO502665  
diameter diameter 8.472 km 0.665 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.79502 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.025   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85489 (1997 SV2)          Discovered 1997-Sep-19 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 SV2 = 2002 ME1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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