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1028 Lydina (A923 VF)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001028
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 56 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054772905120029 3.7506e-08  
a 3.40460659071729 1.4969e-08 au
q 3.045497912269123 1.2359e-07 au
i 9.393939273234052 4.3438e-06 deg
node 62.82586001369302 2.0865e-05 deg
peri 24.24405122332531 2.8058e-05 deg
M 174.8144092412041 1.8154e-05 deg
tp 2458282.273312480887
(2018-Jun-12.77331248)
0.00011568 TDB
period 2294.556891780152
6.28
1.5133e-05
4.143e-08
d
yr
n .1568930372960622 1.0347e-09 deg/d
Q 3.763715269165457 1.6548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3016  
   data-arc span      41689 days (114.14 yr)  
   first obs. used      1907-05-09  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:51:58  

Additional Information
 Earth MOID = 2.06452 au 
 Jupiter MOID = 1.51998 au 
 T_jup = 3.116 
[ 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 9.38   n/a E2021B10 IRAS observations used: 36
diameter diameter 88.526 km 0.762 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.680 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2012) Minor Planet Bull. 39, 80-82.]
[Strabla, L.; Quadri, U.; Girelli, R. (2012) Minor Planet Bull. 39, 177-179.]
geometric albedo albedo 0.038   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.684   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=19.32 deg.
U-B UB 0.276   0.058 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=19.32 deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1028 Lydina (A923 VF)          Discovered 1923-Nov-06 by Albitzkij, V. at Simeis
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
1904-Feb-24 02:25 00:03 Jupiter 1.73547499372306 1.73547421275638 1.73547577469063 3.24087691165965 3.08660907259552 2416534.600996411 2.53013621379457 115.34134916018 18.9734179412309 85.2078787090859 1746180.41187487 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
1917-Jun-23 00:11 00:02 Jupiter 1.92263064075358 1.92262990370077 1.92263137780671 4.75642295040495 4.66288016098085 2421402.507980010 2.01511183480312 69.8085217119839 23.6601914951542 -68.1185331986518 2954070.43944768 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
1970-Aug-10 22:54 00:01 Jupiter 1.71842164774507 1.71842097535167 1.71842232014003 2.77950869066237 2.59612288526524 2440809.453967600 1.05600406058701 151.920096632867 18.208768012503 81.983103755382 2361294.37983497 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
1983-Nov-21 21:18 < 00:01 Jupiter 1.47613246704771 1.47613201606116 1.47613291803476 2.32851723094794 2.06745459711941 2445660.387361033 0.729726890916803 92.1139486328631 16.4424888903413 79.4548780500009 2078978.739599 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
1997-Apr-15 23:00 < 00:01 Jupiter 1.51972890964098 1.51972840878688 1.51972941049542 1.58402438464273 1.18086033937404 2450554.458370684 0.50605036925263 95.4891886430868 61.6546075354256 45.0525510919628 2401198.87945842 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
2010-Oct-31 00:23 < 00:01 Jupiter 1.684459599033 1.68445913075862 1.68446006730729 3.02650015235861 2.85552318651711 2455500.515860015 0.282479009171089 82.3910205789226 16.400566703571 89.9955412287105 2783861.88262124 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
2024-Mar-03 23:44 < 00:01 Jupiter 1.89209579557886 1.89209532577732 1.89209626538052 4.61527482694359 4.51723747737744 2460373.488758631 0.319023831333985 52.2172617941916 19.8464033122061 -80.2842058101798 3667360.1875444 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
2077-Apr-12 06:54 00:01 Jupiter 1.7675529296803 1.76755219446438 1.76755366489753 2.93766917304006 2.76974503466564 2479770.787681089 1.27842783149777 136.19937663336 21.3368323300854 80.3329937035273 2476000.5241337 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
2090-Jul-26 19:28 00:02 Jupiter 1.49501601016452 1.49501541656085 1.49501660376785 2.34347245836487 2.08775832289757 2484624.310893966 1.60544964334904 108.716930120361 19.4090220440882 83.4877973672761 1805486.78933429 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
2103-Dec-21 15:32 00:02 Jupiter 1.49761029194923 1.49760976106429 1.49761082283782 1.46229465320857 1.0035637504272 2489519.147503620 2.28139560537174 293.554308197916 117.503730727166 57.4942201349237 2118293.54236008 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
2117-Jul-07 08:36 00:02 Jupiter 1.63982533170276 1.63982469838047 1.63982596502597 2.83527918761836 2.64683655772333 2494465.858322544 2.49076411573039 123.616827176592 15.3215366101354 -87.8502536627077 1731808.18963484 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
2130-Nov-13 04:44 00:03 Jupiter 1.85407293445204 1.85407196272401 1.85407390618081 4.44547006803983 4.34148772630713 2499342.697250574 2.51039103527642 89.9354606591012 25.5582391699112 -65.2904637369071 2459332.62504497 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
2183-Dec-13 23:14 00:04 Jupiter 1.81653171121283 1.81653006734135 1.81653335509174 3.11155808358662 2.95790848102644 2518731.468360686 3.5175893072928 224.071842921452 26.7395043035709 72.6843888998398 2267333.555593 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52
2197-Mar-29 04:33 00:04 Jupiter 1.52887731157735 1.52887618236726 1.52887844078831 2.38978452698703 2.14546919373204 2523585.689851121 3.87626754739237 150.022950434489 23.9742519241827 89.842002317911 1414488.03093713 T 56 CATAB v2.0g-lin.ifort 2021-Jul-08 11:52:22 2021-Jul-08 11:52

Alternate Designations
 A923 VF = A907 JF = A914 JA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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