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92 Undina
Classification: Main-belt Asteroid          SPK-ID: 2000092
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 73 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1038706957113605 5.5036e-08  
a 3.185821860843801 9.9915e-09 AU
q 2.854908327745494 1.8037e-07 AU
i 9.930883289171257 6.9483e-06 deg
node 101.5915748922019 3.7808e-05 deg
peri 239.8595267998095 4.8431e-05 deg
M 227.178720968071 3.1184e-05 deg
tp 2457566.794690112918
(2016-Jun-27.29469011)
0.00018043 JED
period 2076.972081968394
5.69
9.7708e-06
2.675e-08
d
yr
n .173329243626048 8.154e-10 deg/d
Q 3.516735393942108 1.1029e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1382  
   data-arc span      52234 days (143.01 yr)  
   first obs. used      1871-03-09  
   last obs. used      2014-03-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61093  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:32:39  

Additional Information
 Earth MOID = 1.86066 AU 
 T_jup = 3.166 
[ 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 6.61 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
diameter diameter 126.42 km 3.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 15.941 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Schober, H.J.; Scaltriti, F.; Zappala, V. (1979) Astron. Astrophys. Suppl. Ser. 36, 1-8.]
[Warner, B.D. (2007) Minor Planet Bul. 34, 72-77.]
[Warner, B.D. (2011) http://www.minorplanetobserver.com/PDO/PDOLig htcurves.htm]
[Warner, B.D (2012) Minor Planet Bul. 39, 69-80.]
geometric albedo albedo 0.2509   0.014 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
B-V BV .725 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=2.83, mean=14.49, max.=19.33) deg.
U-B UB .275 mag .044 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=2.83, mean=14.49, max.=19.33) deg.
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B Xc   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)

92 Undina          Discovered 1867-Jul-07 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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