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300424 (2007 SG20)
Classification: Main-belt Asteroid          SPK-ID: 2300424
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 .07781024897779273 1.0558e-07  
a 2.635887798740338 5.2293e-08 au
q 2.430788712842826 3.0451e-07 au
i 14.79706145789076 1.524e-05 deg
node 8.563145588896175 2.9253e-05 deg
peri 294.4512054145838 9.4779e-05 deg
M 65.693436982311 8.8722e-05 deg
tp 2458715.261404132055
(2019-Aug-19.76140413)
0.00038482 TDB
period 1563.107354850534
4.28
4.6515e-05
1.274e-07
d
yr
n .2303104766815096 6.8536e-09 deg/d
Q 2.84098688463785 5.6362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6216 days (17.02 yr)  
   first obs. used      2001-04-14  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59308  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:39:19  

Additional Information
 Earth MOID = 1.45749 au 
 Jupiter MOID = 2.39065 au 
 T_jup = 3.346 
[ 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 16.1   n/a MPO437338  

300424 (2007 SG20)          Discovered 2007-Sep-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

[ 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
1911-Jun-03 00:57 00:11 Amphi 0.025438923181943 0.0253934704839839 0.0254844683241283 3.69738455953874 3.69738449841925 2419190.539849145 10.9160767509574 3315.80553375803 98.8748327489549 -46.8792036470198 28087.011838365 T 11 CATAB v2.0e-lin.ifort 2018-May-07 06:39:21 2018-Dec-18 00:37
1936-Sep-08 21:30 00:05 Hebe 0.0493963976690903 0.0493540426746503 0.0494387568971695 8.51378018194911 8.51378016716688 2428420.395837123 5.17700412696807 2231.92803580644 112.757978467721 -18.9011739599324 21455.2592917305 T 11 CATAB v2.0e-lin.ifort 2018-May-07 06:39:21 2018-Dec-18 00:37
2000-Nov-27 16:06 00:01 Hebe 0.0227080825202364 0.0227020444482563 0.022714120997381 8.36317396252222 8.36317392978771 2451876.170896549 1.09182861886281 342.467493991068 113.32305817181 30.3384426473222 17390.9806138192 T 11 CATAB v2.0e-lin.ifort 2018-May-07 06:39:21 2018-Dec-18 00:37
2086-Dec-26 04:15 00:05 Amphi 0.0104515710199057 0.010429741368992 0.0104735878993732 3.64728973052269 3.6472895797158 2483315.677238152 5.385480294707 2468.81872008091 100.205209196416 63.8284148965215 13996.8147203403 T 11 CATAB v2.0e-lin.ifort 2018-May-07 06:39:21 2018-Dec-18 00:37
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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