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JPL Small-Body Database Browser
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2152 Hannibal (1978 WK)
Classification: Main-belt Asteroid          SPK-ID: 2002152
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204489179805903 4.4394e-08  
a 3.124239222253761 1.4703e-08 au
q 2.435504066195398 1.3728e-07 au
i 13.96462337743883 4.4306e-06 deg
node 250.9290264125121 1.7056e-05 deg
peri 142.0062837257119 1.8779e-05 deg
M 173.3769731156031 8.9107e-06 deg
tp 2458029.087331035927
(2017-Oct-02.58733104)
4.7132e-05 TDB
period 2017.041562917874
5.52
1.4239e-05
3.898e-08
d
yr
n .1784792175919371 1.2599e-09 deg/d
Q 3.812974378312124 1.7945e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2320  
   data-arc span      29447 days (80.62 yr)  
   first obs. used      1939-09-14  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42863  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:35:47  

Additional Information
 Earth MOID = 1.45956 au 
 Jupiter MOID = 1.69266 au 
 T_jup = 3.132 
[ 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 10.8   n/a MPO384768  
diameter diameter 44.559 km 0.556 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.978 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Ditteon, R.; Hawkins, S. (2007) Minor Planet Bull. 34, 59-64.]
geometric albedo albedo 0.047   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2152 Hannibal (1978 WK)          Discovered 1978-Nov-19 by Wild, P. at Zimmerwald
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
1960-Jun-12 16:09 00:01 Jupiter 1.89311676596485 1.89311584419369 1.89311768773633 4.15833244532082 4.04930664134003 2437098.173252687 1.28999059366714 116.4352372544 41.7984372953673 -82.3290324680296 3447294.52088266 T 33 CATAB v2.0f-lin.ifort 2020-May-20 01:36:00 2020-May-20 01:36
1970-Dec-15 13:54 < 00:01 Jupiter 1.7264407257027 1.72644026986304 1.72644118154276 3.56510314680349 3.42472260011497 2440936.079183781 0.97902672417206 157.55889735607 20.9681604266416 86.4924341264355 3049176.98078577 T 33 CATAB v2.0f-lin.ifort 2020-May-20 01:36:00 2020-May-20 01:36
2054-May-29 08:07 < 00:01 Jupiter 1.70377585734855 1.70377545959833 1.70377625509983 3.80815508618856 3.67528998722649 2471416.838281693 0.874807745310999 149.843392566362 16.0859110035725 85.8559357539492 3448662.82238647 T 33 CATAB v2.0f-lin.ifort 2020-May-20 01:36:00 2020-May-20 01:36
2064-Nov-05 17:14 00:01 Jupiter 1.95302880284533 1.95302778265574 1.95302982303536 2.75876232549831 2.59680106875822 2475230.217782807 1.40583167298424 92.3684876886095 56.3273438547885 67.7042792449414 1986314.67938299 T 33 CATAB v2.0f-lin.ifort 2020-May-20 01:36:00 2020-May-20 01:36
2137-Nov-09 23:43 00:03 Jupiter 1.73352438199185 1.73352352949605 1.73352523450321 3.9355062114053 3.80932844188304 2501896.488237870 2.69063879423103 321.44033746992 23.744406352043 -84.0323802951223 3784994.00887896 T 33 CATAB v2.0f-lin.ifort 2020-May-20 01:36:00 2020-May-20 01:36
2148-May-16 02:57 00:03 Jupiter 1.81651892231146 1.81651709716597 1.81652074747749 3.30561143255679 3.16140621351959 2505736.622575959 3.19473667154574 339.708177479567 28.5711843789605 73.1333380234442 2640734.87128365 T 33 CATAB v2.0f-lin.ifort 2020-May-20 01:36:00 2020-May-20 01:36

Alternate Designations
 1978 WK = 1939 RM = 1952 BG1 = 1977 OB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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