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91148 (1998 OY2)
Classification: Main-belt Asteroid          SPK-ID: 2091148
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1226565489405315 7.4116e-08  
a 3.142391562570639 3.931e-08 au
q 2.75695665808588 2.5037e-07 au
i 14.60869015371228 8.0879e-06 deg
node 289.7690141940456 3.3962e-05 deg
peri 104.4708272549268 5.6233e-05 deg
M 264.2012805105629 4.5507e-05 deg
tp 2459541.934692951569
(2021-Nov-23.43469295)
0.00026249 TDB
period 2034.646084012181
5.57
3.8179e-05
1.045e-07
d
yr
n .1769349484555589 3.3201e-09 deg/d
Q 3.527826467055398 4.4131e-08 au
  Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      8045 days (22.03 yr)  
   first obs. used      1998-07-20  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57219  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:15:33  

Additional Information
 Earth MOID = 1.81009 au 
 Jupiter MOID = 1.95149 au 
 T_jup = 3.148 
[ 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 14.3   n/a MPO348071  
diameter diameter 4.261 km 0.219 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.322   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91148 (1998 OY2)          Discovered 1998-Jul-20 by ODAS at Caussols
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1937-Jan-10 05:51 00:04 Jupiter 1.96595838054633 1.96595752898295 1.96595923210971 5.02305179995121 4.93653321895996 2428543.743537314 3.85862250433321 377.271515358717 39.4983441440441 89.3377523331682 1982586.13353709 T 16 CATAB v2.0f-lin.ifort 2020-Aug-25 08:15:48 2020-Aug-25 08:15
2020-Jun-01 23:16 < 00:01 Jupiter 1.96149592547876 1.96149494862136 1.96149690233683 5.18203039357902 5.09801819055804 2459002.469433547 0.469720738239441 124.044028100114 39.128499851064 77.5069315618809 2003316.69752615 T 16 CATAB v2.0f-lin.ifort 2020-Aug-25 08:15:48 2020-Aug-25 08:15
2114-Apr-30 22:11 00:05 Jupiter 1.99259110990108 1.99258952764694 1.99259269220121 4.55722823029857 4.46297627284978 2493302.424609090 5.09316839138762 539.966149650055 29.7090937574678 81.5954061559011 2009508.35588927 T 16 CATAB v2.0f-lin.ifort 2020-Aug-25 08:15:48 2020-Aug-25 08:15
2197-Sep-23 03:46 00:09 Jupiter 1.94142868618273 1.94142721104498 1.94143016146885 4.82818679498894 4.7369622371028 2523763.656661195 9.0710668113822 978.707607854887 32.1915805099592 85.7459005899249 2031606.33742725 T 16 CATAB v2.0f-lin.ifort 2020-Aug-25 08:15:48 2020-Aug-25 08:15

Alternate Designations
 1998 OY2 = 1999 TD209 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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