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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054772905696844 3.7367e-08  
a 3.404606590749615 1.4863e-08 au
q 3.045497912101655 1.2323e-07 au
i 9.393939192082989 4.327e-06 deg
node 62.82586061179555 2.0688e-05 deg
peri 24.24405061456525 2.7753e-05 deg
M 174.8144092503278 1.8009e-05 deg
tp 2458282.273312406866
(2018-Jun-12.77331241)
0.00011463 TDB
period 2294.55689181283
6.28
1.5025e-05
4.114e-08
d
yr
n .1568930372938278 1.0274e-09 deg/d
Q 3.763715269397574 1.643e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3065  
   data-arc span      41731 days (114.25 yr)  
   first obs. used      1907-05-09  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38983  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:15:50  

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 9.39   n/a MPO636076 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 1.73547499159838 1.73547421101328 1.73547577218448 3.24087690422816 3.08660906459902 2416534.600993460 2.52536804335414 114.647664281681 18.8021019151708 85.0706312755129 1754214.80648775 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
1917-Jun-23 00:11 00:02 Jupiter 1.92263063992627 1.92262990304735 1.92263137680553 4.75642293359409 4.66288014379209 2421402.507975938 2.01099073233748 69.8011003740416 23.6446910114314 -68.1158047201934 2957466.02393575 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
1970-Aug-10 22:54 00:01 Jupiter 1.71842164867872 1.71842097779938 1.71842231955952 2.77950867587706 2.59612286953868 2440809.453963940 1.05520390477915 151.612061336308 18.1985946713992 81.9963382213839 2375664.36151627 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
1983-Nov-21 21:18 < 00:01 Jupiter 1.47613246501716 1.47613201636687 1.47613291366795 2.32851721241077 2.06745457585971 2445660.387362596 0.729243490409177 91.7252117665687 16.3701349225869 79.3863358550791 2085548.35472488 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
1997-Apr-15 23:00 < 00:01 Jupiter 1.51972890592446 1.51972840781927 1.51972940402999 1.58402437471774 1.18086032490626 2450554.458384718 0.50598247874508 94.9406712115694 61.5536033455822 44.7912800167388 2402625.0831606 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
2010-Oct-31 00:23 < 00:01 Jupiter 1.68445959851248 1.684459134429 1.68446006259596 3.02650023500179 2.85552327405421 2455500.515869714 0.280889141280768 81.8569582984078 16.2827232095667 89.8943784317293 2819389.11256394 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
2024-Mar-03 23:44 < 00:01 Jupiter 1.89209579598534 1.89209533068404 1.8920962612867 4.61527484507375 4.51723749592236 2460373.488763847 0.316968153021337 52.0980342566372 19.69931823475 -80.4916066559523 3700804.73101674 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
2077-Apr-12 06:54 00:01 Jupiter 1.76755292959352 1.76755220414977 1.76755365503847 2.9376691678309 2.76974502913217 2479770.787677174 1.27240983942997 135.197218232491 21.2351431377088 80.4417442024218 2503346.37313596 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
2090-Jul-26 19:28 00:02 Jupiter 1.49501600815968 1.49501542026645 1.49501659605266 2.34347242867573 2.0877582892081 2484624.310899129 1.59870277398513 108.585300336614 19.3438692585041 83.4617191425922 1819887.68117178 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
2103-Dec-21 15:32 00:02 Jupiter 1.49761028849895 1.49760976103289 1.49761081596858 1.46229466087983 1.00356376030661 2489519.147502885 2.27255693488508 292.272621223587 117.380839485287 57.403407894217 2118885.3522169 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
2117-Jul-07 08:36 00:02 Jupiter 1.63982533125426 1.63982470544338 1.63982595706607 2.83527919200417 2.64683656236801 2494465.858325088 2.48178128820555 123.283753016186 15.2526229183976 -87.854773087703 1758623.66664325 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
2130-Nov-13 04:44 00:03 Jupiter 1.85407293486193 1.85407197152098 1.85407389820362 4.44547007338528 4.34148773180387 2499342.697254077 2.50218608828608 89.4604809022894 25.469610171326 -65.4417909995517 2471944.19247306 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
2183-Dec-13 23:14 00:04 Jupiter 1.81653171099176 1.81653007811859 1.81653334387227 3.11155807051078 2.95790846725218 2518731.468360480 3.50607642744138 222.876833097192 26.7172721675596 72.7134307317499 2280039.98677636 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16
2197-Mar-29 04:33 00:04 Jupiter 1.52887730935392 1.5288761884389 1.52887843026981 2.3897845432575 2.14546921147979 2523585.689847359 3.86371794340691 149.895854315648 23.8774392168542 89.8206657678669 1429976.48910549 T 58 CATAB v2.0g-lin.ifort 2021-Aug-25 07:16:26 2021-Aug-25 07:16

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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