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305437 (2008 CA178)
Classification: Main-belt Asteroid          SPK-ID: 2305437
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 .2207039195062639 4.7879e-08  
a 2.69668735614604 2.5847e-08 au
q 2.101517886961624 1.2883e-07 au
i 13.55070470426725 6.2446e-06 deg
node 109.597427095645 2.8983e-05 deg
peri 337.6059546726879 3.5677e-05 deg
M 313.8255523436646 2.4541e-05 deg
tp 2459207.964375701058
(2020-Dec-24.46437570)
0.00011261 TDB
period 1617.500133585971
4.43
2.3255e-05
6.367e-08
d
yr
n .222565669408562 3.1998e-09 deg/d
Q 3.291856825330455 3.1551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      7548 days (20.67 yr)  
   first obs. used      1998-12-24  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53519  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:43  

Additional Information
 Earth MOID = 1.12413 au 
 Jupiter MOID = 1.93665 au 
 T_jup = 3.295 
[ 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 16.3   n/a MPO455250  

305437 (2008 CA178)          Discovered 2008-Feb-06 by CSS at Catalina
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ 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
1997-Feb-24 21:19 < 00:01 Jupiter 1.98739598418673 1.98739504431308 1.98739692406433 3.51840571956683 3.3951118532356 2450504.387879467 0.875141356047201 171.030200955784 15.2382158338025 76.2174185051949 1921488.76066558 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 05:54:44 2019-Sep-24 05:54
2032-Jul-04 13:11 < 00:01 Jupiter 1.94931908592741 1.94931846921472 1.94931970264053 3.45829186337961 3.33027598130806 2463418.049390870 0.626603018503293 129.158004614669 23.4601213371562 82.6174325099274 2142230.22142046 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 05:54:44 2019-Sep-24 05:54
2067-Nov-13 16:36 00:02 Jupiter 1.93509031763603 1.93508975882076 1.93509087645175 3.40894389846251 3.27802743977565 2476333.191591758 1.98387993506985 245.218263174081 26.3000308729908 -89.2381681719708 2198966.05842077 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 05:54:44 2019-Sep-24 05:54
2103-Mar-27 15:16 00:03 Jupiter 1.94459679558406 1.94459596594357 1.94459762523802 3.36377238620094 3.23168837665263 2489250.136278943 3.4069972736943 367.928365763729 30.2581147904598 -85.3270632510284 2219374.63342965 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 05:54:44 2019-Sep-24 05:54
2138-Aug-05 02:58 00:05 Jupiter 1.96577703467378 1.96577534205982 1.96577872731601 3.30616648526812 3.17316374823263 2502164.623800540 4.91392684914273 433.31160759946 42.2068927588185 -79.5159781301965 2289982.18709263 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 05:54:44 2019-Sep-24 05:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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