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952 Caia (A916 US)
Classification: Main-belt Asteroid          SPK-ID: 2000952
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 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2437831868171569 3.4556e-08  
a 2.992124375444601 9.5774e-09 au
q 2.262694759845421 1.0265e-07 au
i 9.990098816874884 4.0467e-06 deg
node 18.41214491107802 2.0498e-05 deg
peri 356.5320283817142 2.1658e-05 deg
M 66.09644991662147 7.4513e-06 deg
tp 2458853.408863695051
(2020-Jan-04.90886369)
3.8997e-05 TDB
period 1890.461730204961
5.18
9.0767e-06
2.485e-08
d
yr
n .1904296681853323 9.1431e-10 deg/d
Q 3.721553991043781 1.1912e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3283  
   data-arc span      38075 days (104.24 yr)  
   first obs. used      1916-10-27  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:51:11  

Additional Information
 Earth MOID = 1.26265 au 
 Jupiter MOID = 1.74319 au 
 T_jup = 3.188 
[ 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 9.40   n/a E2021B10  
diameter diameter 88.692 km 0.422 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.50 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[Stanzel, R.; Schober, H.J. (1980) Astron. Astrophys. Suppl. Ser. 39, 3-5.]
[Colazo, L.M.; Fornari, C.; Santucho, M.; Mottino, A.; et al. (2020) Minor Planet Bull. 47, 337-339.]
geometric albedo albedo 0.047   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

952 Caia (A916 US)          Discovered 1916-Oct-27 by Neujmin, G. at Simeis
Discovered at Simeis during the First World War while Simeis was not in communication with the Rechen-Institut for long periods of time were given provisional designations containing the Greek letter SIGMA. These are here abbreviated S.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1935-Jun-15 19:46 00:01 Jupiter 1.99158197786848 1.99158122797023 1.99158272777126 2.43511488539753 2.25370401629141 2427969.323757379 1.14769913904242 180.160676229677 7.9181858384343 79.2729760461459 2885661.56651477 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:51:20 2021-Feb-24 00:51
1981-Jan-09 11:48 < 00:01 Jupiter 1.75585406990251 1.75585369780816 1.75585444204237 2.42868415937721 2.22119527290048 2444613.991359894 0.465988836669597 828.386371190586 5.86456548695612 88.4266153251602 2928033.39044506 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:51:20 2021-Feb-24 00:51
2017-Aug-29 14:53 < 00:01 Jupiter 1.77475456428117 1.77475424353162 1.77475488503899 2.38638159294375 2.17722152170642 2457995.120018169 0.201205945672111 344.860691501608 9.34976119936674 86.5898411491025 2888015.58368202 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:51:20 2021-Feb-24 00:51
2063-Mar-29 19:02 < 00:01 Jupiter 1.95717225663945 1.95717162500666 1.95717288827223 2.50391329879413 2.32465574996806 2474643.293288278 0.756018052204703 134.234169138176 24.9799147762931 -83.6839888737243 3136777.88470333 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:51:20 2021-Feb-24 00:51
2099-Dec-02 20:33 00:01 Jupiter 1.73339460133001 1.73339418845702 1.73339501421335 2.44538768820594 2.23665415700706 2488040.356102314 1.1566640600221 550.436727020414 13.0752564061672 87.8586892269375 2962981.20602087 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:51:20 2021-Feb-24 00:51
2136-Jul-26 12:14 00:02 Jupiter 1.81630419929522 1.81630345482006 1.81630494381436 2.28629584719481 2.07230807449918 2501425.009962088 1.73578655009654 526.894763129591 13.2584593625913 85.1733761806704 2573673.65025162 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:51:20 2021-Feb-24 00:51
2182-Feb-27 11:52 00:02 Jupiter 1.89589452867965 1.89589319032219 1.89589586703701 2.54315265815711 2.36095151802273 2518076.994603300 2.38538608028743 249.608499860251 59.8664570046999 -87.0717697370366 2286375.74663622 T 47 CATAB v2.0f-lin.ifort 2021-Feb-24 00:51:20 2021-Feb-24 00:51

Alternate Designations
 A916 US = 1973 WH = A908 EB = A919 GB = A921 RA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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