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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 ]

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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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204489171064351 4.4378e-08  
a 3.12423922123549 1.4616e-08 au
q 2.435504068132674 1.3726e-07 au
i 13.96462311568335 4.3531e-06 deg
node 250.9290253812504 1.6746e-05 deg
peri 142.006286386023 1.8338e-05 deg
M 173.3769721961354 8.797e-06 deg
tp 2458029.087336662519
(2017-Oct-02.58733666)
4.6323e-05 TDB
period 2017.041561931765
5.52
1.4154e-05
3.875e-08
d
yr
n .1784792176791936 1.2524e-09 deg/d
Q 3.812974374338306 1.7838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2495  
   data-arc span      29547 days (80.90 yr)  
   first obs. used      1939-09-14  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41608  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:46:21  

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

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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
1960-Jun-12 16:10 00:01 Jupiter 1.89311676303933 1.8931158418964 1.89311768418257 4.15833233829854 4.04930653126547 2437098.173266137 1.28649896528642 115.38517884792 41.5977096073737 -82.0228348395774 3509446.46347182 T 35 CATAB v2.0f-lin.ifort 2020-Aug-24 22:46:34 2020-Aug-24 22:46
1970-Dec-15 13:54 < 00:01 Jupiter 1.72644071169288 1.72644026166762 1.72644116171842 3.56510312806468 3.42472257944553 2440936.079195473 0.975856662940591 156.934447247239 20.8839833459703 86.5532396137516 3128518.30495501 T 35 CATAB v2.0f-lin.ifort 2020-Aug-24 22:46:34 2020-Aug-24 22:46
2054-May-29 08:07 < 00:01 Jupiter 1.70377584237756 1.70377544985978 1.70377623489651 3.80815497173996 3.67528986745188 2471416.838258811 0.864777638193868 148.668803793494 15.6545368211134 85.6933914783677 3535664.73258688 T 35 CATAB v2.0f-lin.ifort 2020-Aug-24 22:46:34 2020-Aug-24 22:46
2064-Nov-05 17:14 00:01 Jupiter 1.95302882120959 1.95302782071105 1.95302982170858 2.75876220639102 2.59680094379268 2475230.217750359 1.39139057559237 90.7291036592008 55.9283466558444 68.3639403680553 1994372.13743438 T 35 CATAB v2.0f-lin.ifort 2020-Aug-24 22:46:34 2020-Aug-24 22:46
2137-Nov-09 23:43 00:03 Jupiter 1.73352434430582 1.73352351105687 1.73352517757024 3.93550612751311 3.80932835242358 2501896.488205164 2.67058005584912 319.908881444708 23.1234339369432 -84.1267645625562 3912288.23513565 T 35 CATAB v2.0f-lin.ifort 2020-Aug-24 22:46:34 2020-Aug-24 22:46
2148-May-16 02:56 00:03 Jupiter 1.81651895793317 1.81651714932067 1.81652076656591 3.30561126518757 3.16140604140828 2505736.622517843 3.17153818340266 336.639276067529 28.561704861362 73.1342186353537 2681685.16954966 T 35 CATAB v2.0f-lin.ifort 2020-Aug-24 22:46:34 2020-Aug-24 22:46

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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