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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1165724333078035 2.4991e-08  
a 2.989132174562392 1.2975e-08 au
q 2.640681763495008 7.8998e-08 au
i 9.778810013165353 7.1724e-07 deg
node 213.1114940560461 4.6038e-06 deg
peri 156.2117693099534 1.0578e-05 deg
M 287.1942871777995 1.0685e-05 deg
tp 2459582.250015433058
(2022-Jan-02.75001543)
5.6987e-05 TDB
period 1887.626674180363
5.17
1.229e-05
3.365e-08
d
yr
n .1907156774823166 1.2418e-09 deg/d
Q 3.337582585629776 1.4488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2020  
   data-arc span      16420 days (44.96 yr)  
   first obs. used      1975-11-02  
   last obs. used      2020-10-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47991  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:36:57  

Additional Information
 Earth MOID = 1.64288 au 
 Jupiter MOID = 2.14505 au 
 T_jup = 3.224 
[ 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 13.12   n/a E2021B10  
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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