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JPL Small-Body Database Browser
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112 Iphigenia
Classification: Main-belt Asteroid          SPK-ID: 2000112
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 81 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1277009896907783 3.3923e-08  
a 2.433981119239214 4.9323e-09 au
q 2.123159321423698 8.2458e-08 au
i 2.59905275990915 3.668e-06 deg
node 323.4144189571576 7.7446e-05 deg
peri 17.30025839248381 7.8573e-05 deg
M 68.942950804689 1.3304e-05 deg
tp 2458334.879493073951
(2018-Aug-04.37949307)
5.1151e-05 TDB
period 1386.992888718564
3.80
4.216e-06
1.154e-08
d
yr
n .2595543228290105 7.8896e-10 deg/d
Q 2.74480291705473 5.5622e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3114  
   data-arc span      54489 days (149.18 yr)  
   first obs. used      1870-09-21  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46983  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:01:29  

Additional Information
 Earth MOID = 1.11377 au 
 Jupiter MOID = 2.6136 au 
 T_jup = 3.493 
[ 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 9.84   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 36
diameter diameter 69.818 km 1.818 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 31.466 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2008) Minor Planet Bull. 35, 71-72.]
[Cikota, S.; Cikota, A. (2010) Minor Planet Bull. 37, 107.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.042   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.696   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=18.12, mean=18.47, max.=18.81) deg.
U-B UB 0.284   0.051 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=18.12, mean=18.47, max.=18.81) deg.
Tholen spectral type spec_T DCX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
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)

112 Iphigenia          Discovered 1870-Sep-19 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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