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137 Meliboea (A874 HA)
Classification: Main-belt Asteroid          SPK-ID: 2000137
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 109 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2118430618375821 1.4451e-08  
a 3.125202614442704 8.1324e-09 au
q 2.463150123736345 4.522e-08 au
i 13.42716275575319 3.2676e-07 deg
node 202.2019046641097 3.9762e-06 deg
peri 107.431980590643 5.8377e-06 deg
M 146.1423665385994 7.5387e-06 deg
tp 2458381.301156922685
(2018-Sep-19.80115692)
3.9728e-05 TDB
period 2017.974598967102
5.52
7.8768e-06
2.157e-08
d
yr
n .178396695470927 6.9634e-10 deg/d
Q 3.787255105149063 9.8552e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3296  
   data-arc span      49628 days (135.87 yr)  
   first obs. used      1885-04-18  
   last obs. used      2021-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41797  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 10:39:37  

Additional Information
 Earth MOID = 1.48867 au 
 Jupiter MOID = 1.81048 au 
 T_jup = 3.138 
[ 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 8.18   n/a E2020-QM5 IRAS observations used: 11
diameter diameter 128.678 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 25.676 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pilcher, F.; Jardine, D. (2009) Minor Planet Bull. 36, 52-54.]
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.065   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.689   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=7.19, mean=11.61, max.=17.67) deg.
U-B UB 0.326   0.041 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=7.19, mean=11.08, max.=17.67) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

137 Meliboea (A874 HA)          Discovered 1874-Apr-21 by Palisa, J. at Pola
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
1955-Mar-14 17:47 < 00:01 Jupiter 1.82982376596077 1.82982364263193 1.82982388929065 0.778718180987912 n/a 2435181.240747971 0.846663812666638 108.292565267978 4.72881485076778 87.9172399809676 57833845.1921073 F 109 CATAB v2.0f-lin.ifort 2021-Mar-16 10:41:49 2021-Mar-16 10:41
1965-Feb-25 05:04 < 00:01 Jupiter 1.87739199111533 1.87739173616308 1.87739224606811 4.2274917643369 4.11938673522699 2438816.711111998 0.474161845043451 54.3332455340877 5.63082194371987 -80.4396693111289 22470810.5383635 T 109 CATAB v2.0f-lin.ifort 2021-Mar-16 10:41:49 2021-Mar-16 10:41
2027-Jun-18 11:23 < 00:01 Jupiter 1.88070135935076 1.88070123075869 1.88070148794284 2.46818611266484 2.27841851764785 2461574.974587599 0.228672021280331 13.9570614712523 9.34605500871678 -84.8407442316816 10621063.5204487 T 109 CATAB v2.0f-lin.ifort 2021-Mar-16 10:41:49 2021-Mar-16 10:41
2037-Mar-30 18:49 < 00:01 Jupiter 1.82430607012733 1.8243059582014 1.82430618205327 2.46627433619812 2.27022293241951 2465148.283722050 0.383223585509085 16.1797064987862 13.3366573462759 73.1147649067064 6188941.70085545 T 109 CATAB v2.0f-lin.ifort 2021-Mar-16 10:41:49 2021-Mar-16 10:41
2099-Jul-08 12:14 < 00:01 Jupiter 1.99170861071073 1.99170831484839 1.99170890657455 3.7859210744375 3.67187278526334 2487893.009377229 0.962500911173314 93.2710039292329 5.7975001098099 -83.8926685504135 20223782.4694596 T 109 CATAB v2.0f-lin.ifort 2021-Mar-16 10:41:49 2021-Mar-16 10:41
2109-Jul-23 01:16 00:02 Jupiter 1.8285456109501 1.82854551326792 1.8285457086323 0.945021254092208 n/a 2491559.552744682 1.51075739990211 41.11014700974 4.78874094161138 88.7489000107506 57094444.4701811 F 109 CATAB v2.0f-lin.ifort 2021-Mar-16 10:41:49 2021-Mar-16 10:41
2119-Jun-12 06:30 00:01 Jupiter 1.90900709242285 1.90900682104704 1.90900736380082 4.12187717442131 4.01278900012078 2495170.770693909 1.26831923277403 114.377125235614 5.62021654174866 -86.6367635326035 24568852.6940141 T 109 CATAB v2.0f-lin.ifort 2021-Mar-16 10:41:49 2021-Mar-16 10:41
2181-Oct-07 06:46 00:02 Jupiter 1.8535449890742 1.8535447073718 1.85354527078219 2.75268639068783 2.58134338403622 2517933.781724421 2.04102616763532 185.094132971698 7.50070413910992 85.5387635728249 15303395.6021791 T 109 CATAB v2.0f-lin.ifort 2021-Mar-16 10:41:49 2021-Mar-16 10:41
2191-Jul-30 02:27 00:03 Jupiter 1.85772759376662 1.85772744793766 1.85772773959538 2.07753988861733 1.84506937842003 2521516.602380567 2.53926669584556 136.992169972342 17.5032130217353 2.97151493387931 598144.07617136 T 109 CATAB v2.0f-lin.ifort 2021-Mar-16 10:41:49 2021-Mar-16 10:41

Alternate Designations
 A874 HA = 1958 UE = 1962 GB = A923 FA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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