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117720 (2005 GB8)
Classification: Main-belt Asteroid          SPK-ID: 2117720
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1745251272780968 3.7928e-08  
a 2.62488820940603 1.211e-08 au
q 2.166779260568667 1.0415e-07 au
i 3.950220997151346 4.0251e-06 deg
node 196.2243031377812 5.0382e-05 deg
peri 282.0335870916869 5.1707e-05 deg
M 312.3547579811448 1.2806e-05 deg
tp 2459406.080388091455
(2021-Jul-10.58038809)
5.5703e-05 TDB
period 1553.333272683036
4.25
1.075e-05
2.943e-08
d
yr
n .231759665701476 1.6039e-09 deg/d
Q 3.082997158243393 1.4224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      7698 days (21.08 yr)  
   first obs. used      1999-12-14  
   last obs. used      2021-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53299  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:17:37  

Additional Information
 Earth MOID = 1.18689 au 
 Jupiter MOID = 2.02623 au 
 T_jup = 3.378 
[ 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 16.2   n/a MPO453648  

117720 (2005 GB8)          Discovered 2005-Apr-02 by Mt. Lemmon Survey at Mt. Lemmon
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1904-Jan-23 15:10 00:02 Psych 0.0484628861178136 0.0484568079210793 0.0484689721626541 3.96579946028835 3.96579939733583 2416503.132229335 1.73468840754856 1063.29902568178 91.6053705917303 74.1856157427761 76099.7638096658 T 14 CATAB v2.0f-lin.ifort 2021-Feb-24 09:17:38 2021-Feb-24 09:17
1915-Mar-24 09:15 00:05 Iris 0.0487545175186668 0.0487284501536792 0.0487805850743924 4.33983856032178 4.3398385331521 2420580.885613348 5.24847655483708 1307.93992441962 51.5274341869082 -6.63879866275152 17266.5413099643 T 14 CATAB v2.0f-lin.ifort 2021-Feb-24 09:17:38 2021-Feb-24 09:17
1970-Jul-13 03:44 00:02 Iris 0.0497769850006254 0.0497658304305373 0.0497881395755913 4.31870735901161 4.31870733226981 2440780.655638514 2.09487916965336 556.429106723709 50.6559345094543 2.42864863222328 14742.9055179506 T 14 CATAB v2.0f-lin.ifort 2021-Feb-24 09:17:38 2021-Feb-24 09:17
2025-Oct-28 01:10 < 00:01 Iris 0.0385044009832476 0.0385002703295313 0.0385085316393795 4.4235195288752 4.42351949512357 2460976.548310427 0.968723261447037 206.45749206496 50.5459638467704 4.43625173713509 29166.1271709951 T 14 CATAB v2.0f-lin.ifort 2021-Feb-24 09:17:38 2021-Feb-24 09:17
2081-Feb-14 20:14 00:04 Iris 0.0439540275394053 0.0439351678819517 0.0439728874020334 4.41536936463634 4.41536933501483 2481175.343215629 3.65998901636087 951.781859928263 49.8273236598858 9.04473456086433 21827.0788283877 T 14 CATAB v2.0f-lin.ifort 2021-Feb-24 09:17:38 2021-Feb-24 09:17
2136-Jun-05 16:19 00:06 Iris 0.0343680081158724 0.0343371376591777 0.0343988846193683 4.50827974844661 4.50827971134372 2501374.179932400 5.70370902029409 1698.3693495322 49.2240101439881 25.04683210239 44283.4516188398 T 14 CATAB v2.0f-lin.ifort 2021-Feb-24 09:17:38 2021-Feb-24 09:17
2191-Sep-21 03:26 00:07 Iris 0.0179177892254781 0.017916052793312 0.0179196217255874 4.75459989275207 4.75459982527214 2521569.642724288 6.72915991851414 2481.01983597773 48.9944841608134 88.2877675784031 54662.2185811293 T 14 CATAB v2.0f-lin.ifort 2021-Feb-24 09:17:38 2021-Feb-24 09:17

Alternate Designations
 2005 GB8 = 2003 WN16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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