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103196 (1999 XA244)
Classification: Main-belt Asteroid          SPK-ID: 2103196
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04470832500448028 4.4683e-08  
a 2.657836769641201 1.6069e-08 au
q 2.539009339535224 1.2825e-07 au
i 22.77444764053456 6.5735e-06 deg
node 57.48011505252431 9.8502e-06 deg
peri 45.77431523355979 7.85e-05 deg
M 304.0439769781418 7.7738e-05 deg
tp 2459446.500066383789
(2021-Aug-20.00006638)
0.00034256 TDB
period 1582.671875439925
4.33
1.4353e-05
3.93e-08
d
yr
n .2274634468372879 2.0629e-09 deg/d
Q 2.776664199747177 1.6788e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      7793 days (21.34 yr)  
   first obs. used      1999-11-01  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48895  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:45:34  

Additional Information
 Earth MOID = 1.57641 au 
 Jupiter MOID = 2.40556 au 
 T_jup = 3.274 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457385.5 (2015-Dec-29.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04361212863005841 4.5681e-08  
q 2.542811616114087 1.3093e-07 au
tp 2457853.365459718982
(2017-Apr-09.86545972)
0.00034359 TDB
node 57.50941892750733 9.8452e-06 deg
peri 43.5444554852402 7.9799e-05 deg
i 22.7810725933477 6.5772e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      7793 days (21.34 yr)  
   first obs. used      1999-11-01  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48895  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:45:34  

Additional Information
 Jupiter MOID = 2.40556 au 
 T_jup = 3.274 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.086738401042143E-15 -5.953453876833485E-15 -8.972380300261809E-12 8.703648413743847E-15 -2.041476746486549E-12 -1.46109568644014E-14
q -5.953453876833485E-15 1.714388597046969E-14 2.557566387961804E-11 -2.511139039066996E-14 5.809943252068833E-12 4.197317958093175E-14
tp -8.972380300261809E-12 2.557566387961804E-11 1.180531931263195E-7 -2.380194880032008E-11 2.721917968097804E-8 7.779766586891002E-11
node 8.703648413743847E-15 -2.511139039066996E-14 -2.380194880032008E-11 9.692716038196021E-11 -9.4257186586045E-11 -2.618407641446529E-11
peri -2.041476746486549E-12 5.809943252068833E-12 2.721917968097804E-8 -9.4257186586045E-11 6.367857688719864E-9 4.175376862513911E-11
i -1.46109568644014E-14 4.197317958093175E-14 7.779766586891002E-11 -2.618407641446529E-11 4.175376862513911E-11 4.325996521341311E-11

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 14.45   n/a E2021B55  
diameter diameter 4.079 km 0.782 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 705.405 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.]
geometric albedo albedo 0.243   0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103196 (1999 XA244)          Discovered 1999-Dec-05 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 XA244 = 2001 KG14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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