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JPL Small-Body Database Browser
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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 ]

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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 103 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2118960185910084 3.2607e-08  
a 3.124649918855002 9.0823e-09 au
q 2.462549041558909 1.0392e-07 au
i 13.42813809074552 3.5171e-06 deg
node 202.2139386001468 1.1777e-05 deg
peri 107.3649838981451 1.4184e-05 deg
M 110.5290689564156 8.7019e-06 deg
tp 2458381.095312169962
(2018-Sep-19.59531217)
4.7368e-05 TDB
period 2017.439301028968
5.52
8.7961e-06
2.408e-08
d
yr
n .178444030418356 7.7802e-10 deg/d
Q 3.786750796151094 1.1007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2773  
   data-arc span      49234 days (134.80 yr)  
   first obs. used      1885-04-18  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43883  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:18:13  

Additional Information
 Earth MOID = 1.48996 au 
 Jupiter MOID = 1.81111 au 
 T_jup = 3.139 
[ 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 8.1   n/a MPO502154 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. 2019-August); 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

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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
1955-Mar-14 17:46 00:01 Jupiter 1.8298238298561 1.82982331360999 1.82982434610224 0.778719534427724 n/a 2435181.240495392 1.00416218036305 144.154985955114 25.6677490279485 -89.2049481969008 10660869.8088999 F 103 CATAB v2.0f-lin.ifort 2020-Feb-22 15:18:46 2020-Feb-22 15:18
1965-Feb-25 05:04 < 00:01 Jupiter 1.87739203314896 1.87739164613267 1.87739242016537 4.22749233727921 4.11938732565718 2438816.711032913 0.545653489798063 68.5297472228343 16.0243294807835 -85.9319477611839 3267168.60065597 T 103 CATAB v2.0f-lin.ifort 2020-Feb-22 15:18:46 2020-Feb-22 15:18
2027-Jun-18 11:23 < 00:01 Jupiter 1.88070146227221 1.88070102685535 1.88070189768896 2.46818523724914 2.27841758013698 2461574.974512409 0.385430832193375 58.275467459768 21.2855265096588 -87.9684275286166 2132089.38642038 T 103 CATAB v2.0f-lin.ifort 2020-Feb-22 15:18:46 2020-Feb-22 15:18
2037-Mar-30 18:49 < 00:01 Jupiter 1.82430610758659 1.82430564802108 1.82430656715199 2.46627493391076 2.2702235859487 2465148.283755111 0.573678109299334 76.9238688842785 25.3098806834688 -88.2296337438829 1873625.54862753 T 103 CATAB v2.0f-lin.ifort 2020-Feb-22 15:18:46 2020-Feb-22 15:18
2099-Jul-08 12:14 00:01 Jupiter 1.99170869991866 1.99170808650881 1.99170931333043 3.78592094787153 3.67187265995374 2487893.009459335 1.21549905996211 131.433910758723 15.70338843164 -81.3663659761216 3287895.66999011 T 103 CATAB v2.0f-lin.ifort 2020-Feb-22 15:18:46 2020-Feb-22 15:18
2109-Jul-23 01:16 00:02 Jupiter 1.82854571796 1.82854520280425 1.82854623311583 0.945021859376687 n/a 2491559.552864076 1.93279194086745 74.1842439385025 24.5986428172913 -83.927341926265 11061955.3309429 F 103 CATAB v2.0f-lin.ifort 2020-Feb-22 15:18:46 2020-Feb-22 15:18
2119-Jun-12 06:30 00:02 Jupiter 1.909007008961 1.90900643042303 1.9090075875017 4.12187641970656 4.01278822005484 2495170.770901533 1.61461350017365 158.061913722722 16.1901737256748 -84.6833626939162 2818077.93022511 T 103 CATAB v2.0f-lin.ifort 2020-Feb-22 15:18:46 2020-Feb-22 15:18
2181-Oct-07 06:46 00:03 Jupiter 1.85354517602627 1.85354457127873 1.85354578077961 2.75268673521051 2.58134376928298 2517933.781960594 2.54392156516059 251.913445921465 18.35669191358 87.0336530050382 2067491.87071309 T 103 CATAB v2.0f-lin.ifort 2020-Feb-22 15:18:46 2020-Feb-22 15:18
2191-Jul-30 02:28 00:03 Jupiter 1.8577275953 1.8577270873447 1.85772810325456 2.07753853280913 1.84506785198988 2521516.602761942 3.19473657703761 174.996327735935 86.742099071447 2.59581977425828 439559.388457372 T 103 CATAB v2.0f-lin.ifort 2020-Feb-22 15:18:46 2020-Feb-22 15:18

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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