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15022 (1998 SM144)
Classification: Main-belt Asteroid          SPK-ID: 2015022
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1789554287617346 3.11e-08  
a 2.404837891574998 8.3919e-09 au
q 1.974479095585729 7.725e-08 au
i 2.235898044086046 3.6152e-06 deg
node 209.4944078360121 8.8993e-05 deg
peri 245.2660303159191 8.9713e-05 deg
M 288.9226347127925 1.3835e-05 deg
tp 2459469.440344171320
(2021-Sep-11.94034417)
5.3137e-05 TDB
period 1362.15690481004
3.73
7.13e-06
1.952e-08
d
yr
n .264286734317295 1.3834e-09 deg/d
Q 2.835196687564268 9.8936e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1027  
   data-arc span      10575 days (28.95 yr)  
   first obs. used      1992-01-30  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55892  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:45:19  

Additional Information
 Earth MOID = .992228 au 
 Jupiter MOID = 2.34683 au 
 T_jup = 3.500 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457505.5 (2016-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1790132292748494 3.1055e-08  
q 1.974718984293478 7.7197e-08 au
tp 2458103.077911011729
(2017-Dec-15.57791101)
4.9361e-05 TDB
node 209.6578530307925 8.8822e-05 deg
peri 244.377302994542 8.9549e-05 deg
i 2.237325110344042 3.6188e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1027  
   data-arc span      10575 days (28.95 yr)  
   first obs. used      1992-01-30  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55892  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:45:19  

Additional Information
 Jupiter MOID = 2.34683 au 
 T_jup = 3.500 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.644416987218342E-16 -2.388685297475727E-15 -2.466233949132358E-13 1.461601729847918E-15 -3.513617077649914E-14 -1.157210755519638E-17
q -2.388685297475727E-15 5.959442471639472E-15 7.628279816296007E-13 -2.241758584245114E-15 1.163592583701467E-13 1.250453344415995E-16
tp -2.466233949132358E-13 7.628279816296007E-13 2.436514110462997E-9 8.981463366068285E-12 5.718927315617035E-10 6.082327519582552E-13
node 1.461601729847918E-15 -2.241758584245114E-15 8.981463366068285E-12 7.889357149332522E-9 -7.880883449584763E-9 -4.164369915244133E-11
peri -3.513617077649914E-14 1.163592583701467E-13 5.718927315617035E-10 -7.880883449584763E-9 8.01908015953891E-9 4.175281340772508E-11
i -1.157210755519638E-17 1.250453344415995E-16 6.082327519582552E-13 -4.164369915244133E-11 4.175281340772508E-11 1.309601695100112E-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 15.53   n/a E2021B10  

15022 (1998 SM144)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SM144 = 1992 CS6 = 1996 EJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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