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308623 (2005 XX2)
Classification: Main-belt Asteroid          SPK-ID: 2308623
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09185169870880429 6.0151e-08  
a 3.171953304866891 4.6443e-08 au
q 2.880604005589861 2.0321e-07 au
i 7.906137815305017 5.9292e-06 deg
node 279.4258575929779 4.4573e-05 deg
peri 70.75974341488474 5.6321e-05 deg
M 274.9300349242613 3.9113e-05 deg
tp 2459488.098497401764
(2021-Sep-30.59849740)
0.00023134 TDB
period 2063.424604775068
5.65
4.5319e-05
1.241e-07
d
yr
n .1744672420629796 3.8318e-09 deg/d
Q 3.463302604143921 5.0709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      226  
   data-arc span      5368 days (14.70 yr)  
   first obs. used      2004-08-13  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48487  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 06:38:34  

Additional Information
 Earth MOID = 1.88659 au 
 Jupiter MOID = 1.93178 au 
 T_jup = 3.181 
[ 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 15.6   n/a MPO471237  
diameter diameter 4.450 km 0.473 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

308623 (2005 XX2)          Discovered 2005-Dec-01 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ 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
1967-Mar-13 10:29 00:03 Jupiter 1.99754581257459 1.99754517417203 1.99754645097705 3.888938516524 3.77833026832123 2439562.936672264 3.05599535648833 104.078031597967 31.1235268373104 89.3380011198947 2114234.5525681 T 11 CATAB v2.0e-lin.ifort 2019-Jul-14 06:38:36 2019-Jul-14 06:38
1978-Jan-19 19:41 00:02 Jupiter 1.97441333121448 1.97441276074127 1.97441390168848 4.23235806919871 4.12975249132478 2443528.320413243 2.31030765193357 133.266180833601 21.7638903769565 -84.6832329403998 2825023.75077647 T 11 CATAB v2.0e-lin.ifort 2019-Jul-14 06:38:36 2019-Jul-14 06:38
2097-Mar-08 20:58 00:06 Jupiter 1.98817101418893 1.98817029248839 1.98817173589251 4.12766424177668 4.02312690108048 2487041.373395262 5.72906835799111 210.24719882719 27.347495659035 83.1389929619695 2795546.37157634 T 11 CATAB v2.0e-lin.ifort 2019-Jul-14 06:38:36 2019-Jul-14 06:38
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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