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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 81 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2078101175273459 3.4428e-08  
a 2.234770552005074 4.7996e-09 au
q 1.770362620946248 7.5794e-08 au
i 5.98644676927233 3.284e-06 deg
node 97.79274162657963 3.258e-05 deg
peri 258.9028463699229 3.3594e-05 deg
M 57.48654567109541 9.9774e-06 deg
tp 2459005.645002393671
(2020-Jun-05.14500239)
3.351e-05 TDB
period 1220.24724775817
3.34
3.9311e-06
1.076e-08
d
yr
n .2950221774000223 9.5043e-10 deg/d
Q 2.6991784830639 5.797e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2862  
   data-arc span      32904 days (90.09 yr)  
   first obs. used      1930-12-17  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44652  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:53:57  

Additional Information
 Earth MOID = .776183 au 
 Jupiter MOID = 2.76038 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 12.54   n/a E2021B10  
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. 2020-October); 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.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1909-Jul-18 04:48 < 00:01 Vesta 0.0491038966500286 0.0490987522180253 0.049109041791446 4.97418276748782 4.97418228034432 2418505.699954060 0.231299796382958 392.291759247257 39.5287523174949 49.5962818464953 141641.75323127 T 81 CATAB v2.0f-lin.ifort 2021-Feb-24 00:54:05 2021-Feb-24 00:54

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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