Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
112 Iphigenia (A870 SA)
Classification: Main-belt Asteroid          SPK-ID: 2000112
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 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281490925127551 2.3602e-08  
a 2.43328883912296 4.4468e-09 au
q 2.121465082567938 5.6653e-08 au
i 2.599601900875745 1.299e-06 deg
node 323.4085734881762 2.0735e-05 deg
peri 17.34658366181228 2.0165e-05 deg
M 224.6295957592592 5.5779e-06 deg
tp 2459721.826916061206
(2022-May-22.32691606)
2.1893e-05 TDB
period 1386.401191860748
3.80
3.8004e-06
1.04e-08
d
yr
n .2596650970249302 7.118e-10 deg/d
Q 2.745112595677983 5.0166e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3771  
   data-arc span      54962 days (150.48 yr)  
   first obs. used      1870-09-21  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43172  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:18:41  

Additional Information
 Earth MOID = 1.11114 au 
 Jupiter MOID = 2.61629 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 9.79   n/a E2021B10 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. 2020-October); 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 (A870 SA)          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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-14 18:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin