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32 Pomona
Classification: Main-belt Asteroid          SPK-ID: 2000032
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 89 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08016215439549554 3.7232e-08  
a 2.587288303593894 7.3201e-09 AU
q 2.379885699135541 9.5975e-08 AU
i 5.52399150011445 4.3714e-06 deg
node 220.4570024470395 4.613e-05 deg
peri 338.8942239760191 5.2276e-05 deg
M 13.74841102947412 2.4503e-05 deg
tp 2456942.448202529327
(2014-Oct-11.94820253)
0.00010342 JED
period 1520.077268903247
4.16
6.451e-06
1.766e-08
d
yr
n .2368300660529869 1.0051e-09 deg/d
Q 2.794690908052248 7.9069e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1453  
   data-arc span      55339 days (151.51 yr)  
   first obs. used      1864-01-07  
   last obs. used      2015-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .67757  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 13:53:35  

Additional Information
 Earth MOID = 1.37916 AU 
 T_jup = 3.410 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.56 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 25
diameter diameter 80.76 km 1.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 25
rotation period rot_per 9.448 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.]
geometric albedo albedo 0.2564   0.010 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 25
B-V BV .857 mag .017 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=9; phase (min.=3.45, mean=13.75, max.=24.02) deg.
U-B UB .429 mag .025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=9; phase (min.=3.45, mean=13.75, max.=24.02) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B S   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)

32 Pomona          Discovered 1854-Oct-26 by Goldschmidt, H. at Paris
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1945 RB = 1949 SH = 1950 YD = A899 QA = A911 KF 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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