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21567 (1998 RB2)
Classification: Main-belt Asteroid          SPK-ID: 2021567
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2115925271942992 2.596e-08  
a 2.538711739274225 8.3881e-09 au
q 2.001539306543357 6.7185e-08 au
i 6.992453704300848 4.308e-06 deg
node 130.9036044769491 2.3324e-05 deg
peri 88.00844912054495 2.6556e-05 deg
M 333.141683344245 1.4281e-05 deg
tp 2459506.728729756353
(2021-Oct-19.22872976)
5.8855e-05 TDB
period 1477.469463961519
4.05
7.3225e-06
2.005e-08
d
yr
n .2436598581433534 1.2076e-09 deg/d
Q 3.075884172005093 1.0163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1820  
   data-arc span      14673 days (40.17 yr)  
   first obs. used      1981-04-07  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50922  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 05:09:12  

Additional Information
 Earth MOID = 1.00943 au 
 Jupiter MOID = 1.93419 au 
 T_jup = 3.405 
[ 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 14.63   n/a MPO636387  
diameter diameter 2.635 km 0.320 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.485   0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21567 (1998 RB2)          Discovered 1998-Sep-01 by Zoltowski, F. B. at Woomera
Reference: 20010208/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
2011-Jun-16 13:56 < 00:01 Jupiter 1.93697504544489 1.93697473127977 1.93697535960979 1.65834604314747 1.36949947706259 2455729.080733721 0.134032228594299 54.1071470409471 32.8011471061451 21.8460687939567 2314718.64782534 T 35 CATAB v2.0g-lin.ifort 2021-Jul-08 05:09:28 2021-Jul-08 05:09
2023-Oct-25 18:58 < 00:01 Jupiter 1.93694690351657 1.93694664544683 1.93694716158619 1.44611987732815 1.10302638754932 2460243.290203243 0.155508343717912 80.9548818687102 55.1155378257651 38.8068968385609 3136091.04886223 T 35 CATAB v2.0g-lin.ifort 2021-Jul-08 05:09:28 2021-Jul-08 05:09
2165-Aug-07 19:46 00:02 Jupiter 1.96269144353843 1.96269090134536 1.96269198573251 1.75551105552194 1.48952865357798 2512029.323723570 1.68862151603454 149.605209247814 31.6543638114716 63.9298666766039 2275261.89990035 T 35 CATAB v2.0g-lin.ifort 2021-Jul-08 05:09:28 2021-Jul-08 05:09
2177-Dec-17 14:20 00:02 Jupiter 1.93211468184583 1.93211440788772 1.93211495580382 1.43522229528375 1.08769489485789 2516544.097124427 1.83800209319975 204.36904167629 71.3693239939069 70.6395288171297 2918031.54332016 T 35 CATAB v2.0g-lin.ifort 2021-Jul-08 05:09:28 2021-Jul-08 05:09
2190-Apr-29 05:42 00:02 Jupiter 1.97636519779194 1.97636454276553 1.97636585281869 1.56384844661626 1.26034524873711 2521059.737477146 2.03410508862673 139.665615762485 59.3220478992582 -52.4769203022868 1945059.0111713 T 35 CATAB v2.0g-lin.ifort 2021-Jul-08 05:09:28 2021-Jul-08 05:09

Alternate Designations
 1998 RB2 = 1981 GL1 = 1999 XR152 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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