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18853 (1999 RO92)
Classification: Main-belt Asteroid          SPK-ID: 2018853
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0966618847472052 3.203e-08  
a 3.063035453408393 1.8523e-08 au
q 2.766956673434428 1.029e-07 au
i 3.950612523552861 4.8254e-06 deg
node 154.2386544086819 5.3118e-05 deg
peri 273.7703336045043 5.9543e-05 deg
M 256.9352724478861 2.7502e-05 deg
tp 2459561.075381413788
(2021-Dec-12.57538141)
0.0001508 TDB
period 1958.062104291903
5.36
1.7761e-05
4.863e-08
d
yr
n .1838552511745726 1.6677e-09 deg/d
Q 3.359114233382359 2.0313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1554  
   data-arc span      8933 days (24.46 yr)  
   first obs. used      1996-02-16  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:23:07  

Additional Information
 Earth MOID = 1.78459 au 
 Jupiter MOID = 1.90197 au 
 T_jup = 3.222 
[ 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 13.6   n/a MPO439223  
diameter diameter 5.292 km 0.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.599 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.302   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18853 (1999 RO92)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ 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
1902-Aug-11 06:16 00:03 Jupiter 1.93568384970701 1.93568327655803 1.93568442285741 3.23417872526265 3.09592407069308 2415972.761118175 3.00205460185604 131.877333703979 14.6735365669874 86.6473311343657 2925302.24388618 T 25 CATAB v2.0f-lin.ifort 2020-Aug-25 01:23:18 2020-Aug-25 01:23
1961-Jan-24 12:58 00:01 Jupiter 1.91325211525955 1.91325177660614 1.91325245391295 2.7702564985405 2.60555063150526 2437324.040261765 1.46463871100585 55.2610468046518 8.80289325997284 -83.5327988603218 3567275.56803452 T 25 CATAB v2.0f-lin.ifort 2020-Aug-25 01:23:18 2020-Aug-25 01:23
2009-Nov-29 18:26 < 00:01 Jupiter 1.96065512302074 1.96065466665985 1.96065557938152 3.5660830607604 3.442808229079 2455165.268235919 0.211790063500797 33.9888487920954 17.3517316757133 82.7346964030512 3145542.8949896 T 25 CATAB v2.0f-lin.ifort 2020-Aug-25 01:23:18 2020-Aug-25 01:23
2019-Jul-09 04:16 < 00:01 Jupiter 1.95458507337233 1.95458476821402 1.95458537853075 2.65808182306234 2.48971802266852 2458673.677706875 0.248260164919781 47.4578672665566 6.83028283967887 -82.3144028612734 4512573.88987801 T 25 CATAB v2.0f-lin.ifort 2020-Aug-25 01:23:18 2020-Aug-25 01:23
2068-May-17 14:48 00:01 Jupiter 1.90778551978893 1.90778514325031 1.90778589632756 2.97672677806453 2.82363918055546 2476519.116756557 1.45295839791022 64.9415331076872 11.9056653190907 -85.8248608425123 3217058.89527098 T 25 CATAB v2.0f-lin.ifort 2020-Aug-25 01:23:18 2020-Aug-25 01:23
2126-Oct-30 13:12 00:03 Jupiter 1.91863927641278 1.91863883454611 1.91863971827966 2.67386920144608 2.5033249163074 2497868.050266140 3.04014743756364 56.9410215894254 16.4953462550104 -73.9535334959251 4172680.43497704 T 25 CATAB v2.0f-lin.ifort 2020-Aug-25 01:23:18 2020-Aug-25 01:23
2175-Sep-08 12:20 00:04 Jupiter 1.92382892138433 1.92382834314222 1.92382949963015 3.26521488946306 3.12747009433803 2515713.013952731 4.28667607421702 199.54851135595 14.6169494368086 88.2219175287814 3026239.71769792 T 25 CATAB v2.0f-lin.ifort 2020-Aug-25 01:23:18 2020-Aug-25 01:23
2185-Apr-12 23:50 00:05 Jupiter 1.99200458250073 1.99200358501233 1.99200557999027 2.7373915230412 2.57738047135339 2519217.493115924 4.57336959650477 106.867722880972 22.1061999742665 72.7356423892005 3412838.0032527 T 25 CATAB v2.0f-lin.ifort 2020-Aug-25 01:23:18 2020-Aug-25 01:23

Alternate Designations
 1999 RO92 = 1996 DK4 = 1997 GB6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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