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100341 (1995 ST44)
Classification: Mars-crossing Asteroid          SPK-ID: 2100341
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .308059757353321 5.2379e-08  
a 2.355482541759073 8.7626e-09 au
q 1.629853161494789 1.2547e-07 au
i 3.989016511348774 6.1782e-06 deg
node 193.18223656012 6.143e-05 deg
peri 175.5422268144511 6.1828e-05 deg
M 298.7853479739011 8.5148e-06 deg
tp 2459225.028329785638
(2021-Jan-10.52832979)
3.2156e-05 TDB
period 1320.438751957093
3.62
7.3682e-06
2.017e-08
d
yr
n .2726366516178239 1.5214e-09 deg/d
Q 3.081111922023356 1.1462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      427  
   data-arc span      8618 days (23.59 yr)  
   first obs. used      1995-09-20  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57569  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:39:45  

Additional Information
 Earth MOID = .629226 au 
 Jupiter MOID = 2.38397 au 
 T_jup = 3.486 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456440.5 (2013-May-28.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3066712016299263 5.2156e-08  
q 1.633189690926261 1.2468e-07 au
tp 2456585.698125079993
(2013-Oct-20.19812508)
2.4028e-05 TDB
node 193.3163362398994 6.1555e-05 deg
peri 175.5593575869331 6.196e-05 deg
i 3.982994703800083 6.1718e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      427  
   data-arc span      8618 days (23.59 yr)  
   first obs. used      1995-09-20  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57569  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:39:45  

Additional Information
 Jupiter MOID = 2.38397 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.720245153881566E-15 -6.495883972486409E-15 -2.74624207255845E-13 -1.141813684520866E-14 -5.048775367073994E-14 -2.708536916432332E-15
q -6.495883972486409E-15 1.554555971594775E-14 6.980853722477584E-13 2.681081012386097E-14 1.27986077554232E-13 6.485673316247709E-15
tp -2.74624207255845E-13 6.980853722477584E-13 5.773414219534787E-10 3.794868112708247E-12 1.788334987431713E-10 -9.611988557516399E-14
node -1.141813684520866E-14 2.681081012386097E-14 3.794868112708247E-12 3.789003125181377E-9 -3.77786753984947E-9 -3.27710134082008E-11
peri -5.048775367073994E-14 1.27986077554232E-13 1.788334987431713E-10 -3.77786753984947E-9 3.839086102521041E-9 3.263671749177797E-11
i -2.708536916432332E-15 6.485673316247709E-15 -9.611988557516399E-14 -3.27710134082008E-11 3.263671749177797E-11 3.809087503040117E-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 16.1   n/a MPO432532  

100341 (1995 ST44)          Discovered 1995-Sep-25 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1995 ST44 = 2000 AM122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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