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43997 (1997 QX)
Classification: Main-belt Asteroid          SPK-ID: 2043997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .061276739362628 4.5066e-08  
a 3.099743942354686 2.1833e-08 au
q 2.909801740708133 1.4132e-07 au
i 8.729792932696288 5.521e-06 deg
node 335.2830464181422 2.9385e-05 deg
peri 56.18466498597536 5.2381e-05 deg
M 83.14987856227293 4.1973e-05 deg
tp 2458936.088380658646
(2020-Mar-27.58838066)
0.00023233 TDB
period 1993.366506708183
5.46
2.106e-05
5.766e-08
d
yr
n .1805990011312565 1.908e-09 deg/d
Q 3.289686144001239 2.317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      701  
   data-arc span      9889 days (27.07 yr)  
   first obs. used      1994-01-14  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54578  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:33:21  

Additional Information
 Earth MOID = 1.92385 au 
 Jupiter MOID = 2.01376 au 
 T_jup = 3.202 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457124.5 (2015-Apr-12.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05973793887273703 4.6018e-08  
q 2.912612547502325 1.4401e-07 au
tp 2456917.295144775270
(2014-Sep-16.79514478)
0.00023641 TDB
node 335.5333437529793 2.924e-05 deg
peri 51.45063720373575 5.2948e-05 deg
i 8.755920016876823 5.5327e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      701  
   data-arc span      9889 days (27.07 yr)  
   first obs. used      1994-01-14  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54578  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:33:21  

Additional Information
 Jupiter MOID = 2.01376 au 
 T_jup = 3.202 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.11768105154495E-15 -6.559799389256074E-15 -3.125741255328462E-12 6.121749361646229E-15 -5.93222605243186E-13 -2.351890823399817E-15
q -6.559799389256074E-15 2.073821939163443E-14 9.491827200673903E-12 -2.058455971046028E-14 1.80845861205197E-12 8.980729851817314E-15
tp -3.125741255328462E-12 9.491827200673903E-12 5.588838847038976E-8 -4.557478151127473E-11 1.046069622011245E-8 5.896085397813196E-12
node 6.121749361646229E-15 -2.058455971046028E-14 -4.557478151127473E-11 8.549718996594581E-10 -8.526716726705488E-10 2.58047718207449E-11
peri -5.93222605243186E-13 1.80845861205197E-12 1.046069622011245E-8 -8.526716726705488E-10 2.803537762986569E-9 -2.441972558554614E-11
i -2.351890823399817E-15 8.980729851817314E-15 5.896085397813196E-12 2.58047718207449E-11 -2.441972558554614E-11 3.061024561916369E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.78   n/a MPCxxxxx  
diameter diameter 3.691 km 1.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.187   0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43997 (1997 QX)          Discovered 1997-Aug-29 by Offutt, W. at Cloudcroft
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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