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11222 (1999 JR27)
Classification: Main-belt Asteroid          SPK-ID: 2011222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .11678004841702 4.2284e-08  
a 2.986937558414481 1.541e-08 au
q 2.638122845724222 1.3291e-07 au
i 9.783415547478185 4.4523e-06 deg
node 213.1500085340077 1.8803e-05 deg
peri 156.5390677101688 2.4826e-05 deg
M 248.6740964048529 1.7584e-05 deg
tp 2459583.584330634411
(2022-Jan-04.08433063)
9.4413e-05 TDB
period 1885.548216987825
5.16
1.4592e-05
3.995e-08
d
yr
n .1909259051328331 1.4775e-09 deg/d
Q 3.335752271104739 1.721e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1975  
   data-arc span      16420 days (44.96 yr)  
   first obs. used      1975-11-02  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48131  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:00:59  

Additional Information
 Earth MOID = 1.64179 au 
 Jupiter MOID = 2.14495 au 
 T_jup = 3.225 
[ 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 13.1   n/a MPO473918  
rotation period rot_per 178.908 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

11222 (1999 JR27)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 19990728/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JR27 = 1975 VB4 = 1985 SN = 1998 DO5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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