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245 Vera (A885 CA)
Classification: Main-belt Asteroid          SPK-ID: 2000245
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 113 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1966744463228326 4.1533e-08  
a 3.096638088026804 1.2339e-08 au
q 2.487608506601938 1.317e-07 au
i 5.178678983420339 4.5196e-06 deg
node 61.06696033354344 4.8936e-05 deg
peri 331.593007925995 5.0067e-05 deg
M 11.51387752425836 1.1713e-05 deg
tp 2458936.841967971892
(2020-Mar-28.34196797)
6.4679e-05 TDB
period 1990.371313385582
5.45
1.1896e-05
3.257e-08
d
yr
n .180870774000278 1.0811e-09 deg/d
Q 3.705667669451671 1.4766e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2641  
   data-arc span      49456 days (135.40 yr)  
   first obs. used      1885-03-09  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45207  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:12:54  

Additional Information
 Earth MOID = 1.49546 au 
 Jupiter MOID = 1.73363 au 
 T_jup = 3.187 
[ 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 7.8   n/a MPO502155 IRAS observations used: 5
diameter diameter 75.949 km 2.626 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 14.38 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Debehogne, H.; Lagerkvist, C.-I.; Zappala, V. (1982) Astron. Astrophys. Suppl. Ser. 50, 277-281.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.228   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.841   0.013 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=5.56, mean=8.29, max.=16.51) deg.
U-B UB 0.476   0.010 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=5.56, mean=7.87, max.=16.51) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

245 Vera (A885 CA)          Discovered 1885-Feb-06 by Pogson, N. R. at Madras
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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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
1946-Dec-21 04:41 00:01 Jupiter 1.73758246454952 1.73758209891717 1.73758283018255 1.74911254785661 1.44376280296037 2432175.695037579 1.16770945350965 136.280755566682 49.8859481779749 79.4412038305701 2073698.38381735 T 113 CATAB v2.0f-lin.ifort 2020-Aug-24 22:13:17 2020-Aug-24 22:13
1956-Nov-08 01:07 < 00:01 Jupiter 1.9634779043247 1.96347730720744 1.96347850144196 2.25428327081835 2.05402417796701 2435785.546380573 0.961891251585585 78.377799051301 9.60245744913576 -88.0875606782585 2618209.48641585 T 113 CATAB v2.0f-lin.ifort 2020-Aug-24 22:13:17 2020-Aug-24 22:13
2007-May-03 19:09 < 00:01 Jupiter 1.84063929470485 1.84063889620758 1.84063969320224 2.18831834971611 1.96681985027408 2454224.298226031 0.240757959094819 69.7028589466691 9.27289965709262 79.5456631955178 2610883.31702341 T 113 CATAB v2.0f-lin.ifort 2020-Aug-24 22:13:17 2020-Aug-24 22:13
2017-Mar-24 03:21 < 00:01 Jupiter 1.78687377166486 1.7868733598167 1.78687418351383 1.73900095595879 1.44085901019187 2457836.639774423 0.262751380749241 140.483010205252 50.9032059962262 87.9715306942558 2101173.11610963 T 113 CATAB v2.0f-lin.ifort 2020-Aug-24 22:13:17 2020-Aug-24 22:13
2077-Aug-02 02:45 00:01 Jupiter 1.7307337141244 1.73073332001324 1.73073410823655 1.75135361988923 1.44514284496464 2479882.614625414 1.23306053006192 138.310442346682 55.6080392550833 82.5025704757186 1903767.57924543 T 113 CATAB v2.0f-lin.ifort 2020-Aug-24 22:13:17 2020-Aug-24 22:13
2087-Jun-21 22:00 00:01 Jupiter 1.96648425183864 1.96648353518371 1.96648496849435 2.28398318692469 2.08689253805172 2483493.416339668 1.46219294435192 106.575428873411 12.5803031357466 86.8315011882807 2786436.23797089 T 113 CATAB v2.0f-lin.ifort 2020-Aug-24 22:13:17 2020-Aug-24 22:13
2137-Dec-14 19:26 00:02 Jupiter 1.83169582316757 1.83169495317878 1.83169669315771 2.1507953792581 1.92381655462359 2501931.309418090 2.33635992764445 120.067472751687 15.2699792850559 87.3150993583436 1818963.54930971 T 113 CATAB v2.0f-lin.ifort 2020-Aug-24 22:13:17 2020-Aug-24 22:13
2147-Nov-04 09:03 00:03 Jupiter 1.78343240178959 1.78343169646094 1.78343310712716 1.77082513294437 1.47849336356351 2505542.876910560 2.52658377325774 261.211355655752 46.4153848236099 87.3201383180355 2108094.32227957 T 113 CATAB v2.0f-lin.ifort 2020-Aug-24 22:13:17 2020-Aug-24 22:13

Alternate Designations
 A885 CA = A919 HB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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