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JPL Small-Body Database Browser
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1270 Datura (1930 YE)
Classification: Main-belt Asteroid          SPK-ID: 2001270
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 74 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2083681387232127 3.9346e-08  
a 2.234732386460073 6.5593e-09 au
q 1.769085358548904 8.8588e-08 au
i 5.986017102732084 3.5202e-06 deg
node 97.79651234947711 3.9678e-05 deg
peri 258.9100814344047 4.0628e-05 deg
M 240.5058006367277 1.2556e-05 deg
tp 2459005.524257280527
(2020-Jun-05.02425728)
4.3811e-05 TDB
period 1220.215988708533
3.34
5.3723e-06
1.471e-08
d
yr
n .2950297351709193 1.2989e-09 deg/d
Q 2.700379414371242 7.926e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2393  
   data-arc span      32384 days (88.66 yr)  
   first obs. used      1930-12-17  
   last obs. used      2019-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46803  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:16:25  

Additional Information
 Earth MOID = .775713 au 
 Jupiter MOID = 2.75495 au 
 T_jup = 3.603 
[ 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 12.5   n/a MPO337255  
diameter diameter 8.203 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.359 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
[Szekely, P.; Kiss, L.L.; Szabo, Gy.M.; Sarneczky, K.; et al. (2005) Planet. Space Sci. 53, 925-936.]
[Takato, N. (2008) Astrophys. J. Let. 685, L161-L163.]
[Durech, J.; Kaasalainen, M.; Warner, B.D.; Fauerbach, M.; et al. (2009) Astron. Astrophys. 493, 291-297.]
[Vokrouhlicky, D.; Durech, J.; Michalowski, T.; Krugly, Yu.N.; et al. (2009) Astron. Astrophys. 507, 495-504.]
geometric albedo albedo 0.288   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1270 Datura (1930 YE)          Discovered 1930-Dec-17 by Van Biesbroeck, G. at Williams Bay
Independent discovery Dec. 20 by M. Wolf, Heideberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1930 YE = 1953 XF1 = A913 VB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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