Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
39350 (2002 AC120)
Classification: Main-belt Asteroid          SPK-ID: 2039350
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1167054979784986 3.6829e-08  
a 2.708737276047989 1.4643e-08 au
q 2.392612743353887 9.9922e-08 au
i 2.227146285328859 4.8372e-06 deg
node 357.5001953681627 9.606e-05 deg
peri 288.4181997065784 9.8131e-05 deg
M 254.561849894881 2.0235e-05 deg
tp 2459477.418347229205
(2021-Sep-19.91834723)
9.2129e-05 TDB
period 1628.353729948246
4.46
1.3204e-05
3.615e-08
d
yr
n .2210821846500403 1.7927e-09 deg/d
Q 3.024861808742091 1.6352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1111  
   data-arc span      9943 days (27.22 yr)  
   first obs. used      1993-01-26  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55319  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:42:31  

Additional Information
 Earth MOID = 1.3774 au 
 Jupiter MOID = 2.11674 au 
 T_jup = 3.353 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456870.5 (2014-Aug-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1182385850388261 3.6918e-08  
q 2.387806632122937 1.0019e-07 au
tp 2456215.125966607241
(2012-Oct-14.62596661)
8.9327e-05 TDB
node 357.5616846495923 9.613e-05 deg
peri 287.4120130725426 9.8135e-05 deg
i 2.228293840267384 4.8333e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1111  
   data-arc span      9943 days (27.22 yr)  
   first obs. used      1993-01-26  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55319  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:42:31  

Additional Information
 Jupiter MOID = 2.11674 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.362918449328631E-15 -3.668736852657065E-15 7.191358928259078E-13 -1.610838623908811E-15 1.999134778524361E-13 8.13194234381488E-17
q -3.668736852657065E-15 1.003865999234246E-14 -2.052976616229148E-12 4.585005998984606E-15 -5.496242848496747E-13 -1.793032131770886E-16
tp 7.191358928259078E-13 -2.052976616229148E-12 7.979360878364041E-9 -1.317522457701624E-11 1.770570476635112E-9 4.374981566026936E-13
node -1.610838623908811E-15 4.585005998984606E-15 -1.317522457701624E-11 9.240909242895355E-9 -9.236477424203784E-9 -6.871145010035302E-11
peri 1.999134778524361E-13 -5.496242848496747E-13 1.770570476635112E-9 -9.236477424203784E-9 9.630502344465472E-9 6.875592913869804E-11
i 8.13194234381488E-17 -1.793032131770886E-16 4.374981566026936E-13 -6.871145010035302E-11 6.875592913869804E-11 2.336043225476597E-11

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 15.1   n/a MPO351107  

39350 (2002 AC120)          Discovered 2002-Jan-09 by LINEAR at Socorro
Reference: 20020328/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
1981-May-06 03:29 00:02 Thisb 0.0491724822545653 0.0491704027129389 0.0491745625819544 2.42654211459903 2.4265420574558 2444730.644882196 1.62231334276238 350.660993595053 39.6152575188181 74.042118344894 178356.893347094 T 22 CATAB v2.0f-lin.ifort 2020-May-20 08:42:44 2020-May-20 08:42

Alternate Designations
 2002 AC120 = 1998 FR31 = 1999 NF34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-28 04:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin