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1222 Tina (1932 LA)
Classification: Main-belt Asteroid          SPK-ID: 2001222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2502820147598017 2.0361e-08  
a 2.793336567095776 8.9609e-09 au
q 2.094214663180817 5.9586e-08 au
i 19.59013326577989 7.5013e-07 deg
node 245.7875358324397 2.2979e-06 deg
peri 59.94808289712052 3.5062e-06 deg
M 326.4893792744189 2.2877e-06 deg
tp 2459359.231565152416
(2021-May-24.73156515)
1.1384e-05 TDB
period 1705.231422682905
4.67
8.2055e-06
2.247e-08
d
yr
n .2111150399947465 1.0159e-09 deg/d
Q 3.492458471010734 1.1204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2443  
   data-arc span      32423 days (88.77 yr)  
   first obs. used      1932-06-11  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38842  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:18:02  

Additional Information
 Earth MOID = 1.14498 au 
 Jupiter MOID = 1.92386 au 
 T_jup = 3.199 
[ 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 11.30   n/a E2021B10  
diameter diameter 25.781 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 13.395 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2008) Minor Planet Bull. 35, 56-60.]
geometric albedo albedo 0.202   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B X   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)

1222 Tina (1932 LA)          Discovered 1932-Jun-11 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1932 LA = 1955 HP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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