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37987 (1998 HO145)
Classification: Main-belt Asteroid          SPK-ID: 2037987
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09312886788741884 4.009e-08  
a 2.556854828590621 1.1701e-08 au
q 2.318737833051496 1.0387e-07 au
i 4.056922676678192 4.6727e-06 deg
node 143.7292396087582 4.7332e-05 deg
peri 47.65095707826334 5.2901e-05 deg
M 167.1669241863999 2.2861e-05 deg
tp 2458307.065597877792
(2018-Jul-07.56559788)
9.3588e-05 TDB
period 1493.335993223378
4.09
1.0251e-05
2.807e-08
d
yr
n .2410709991814614 1.6548e-09 deg/d
Q 2.794971824129746 1.2791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1107  
   data-arc span      8805 days (24.11 yr)  
   first obs. used      1995-08-19  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:41:57  

Additional Information
 Earth MOID = 1.3212 au 
 Jupiter MOID = 2.16261 au 
 T_jup = 3.427 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456615.5 (2013-Nov-19.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09192532540420942 4.0235e-08  
q 2.3229634403147 1.0412e-07 au
tp 2456811.993660945448
(2014-Jun-03.49366095)
9.2802e-05 TDB
node 143.7937489746673 4.7374e-05 deg
peri 47.53192158541554 5.3031e-05 deg
i 4.054425245218465 4.6702e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1107  
   data-arc span      8805 days (24.11 yr)  
   first obs. used      1995-08-19  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:41:57  

Additional Information
 Jupiter MOID = 2.16261 au 
 T_jup = 3.427 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.618816010939936E-15 -4.167404507528017E-15 -1.627728141943843E-12 2.180041212215115E-14 -4.324036203810135E-13 -7.406408930211828E-17
q -4.167404507528017E-15 1.084136270835718E-14 4.286367400439551E-12 -5.716412361702717E-14 1.133508893281503E-12 1.955116540503758E-16
tp -1.627728141943843E-12 4.286367400439551E-12 8.612187894261843E-9 -4.316611716812242E-11 2.221273409373219E-9 1.060487705085906E-12
node 2.180041212215115E-14 -5.716412361702717E-14 -4.316611716812242E-11 2.244332259257092E-9 -2.248991861241766E-9 3.281957618623077E-11
peri -4.324036203810135E-13 1.133508893281503E-12 2.221273409373219E-9 -2.248991861241766E-9 2.812332322558488E-9 -3.246869571740252E-11
i -7.406408930211828E-17 1.955116540503758E-16 1.060487705085906E-12 3.281957618623077E-11 -3.246869571740252E-11 2.18104150149824E-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 15.1   n/a MPO436034  
diameter diameter 2.207 km 0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.229   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37987 (1998 HO145)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HO145 = 1995 QX10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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