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100177 (1994 AH5)
Classification: Main-belt Asteroid          SPK-ID: 2100177
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08287231613603717 4.6884e-08  
a 2.975765192938573 2.5173e-08 au
q 2.729156639122752 1.4573e-07 au
i 2.748604500510853 6.7035e-06 deg
node 302.4372519648958 0.00012159 deg
peri 301.7044494528178 0.00013623 deg
M 328.9405538038897 6.5886e-05 deg
tp 2459362.266140235280
(2021-May-27.76614024)
0.00034398 TDB
period 1874.979035910619
5.13
2.3791e-05
6.514e-08
d
yr
n .1920021467467551 2.4363e-09 deg/d
Q 3.222373746754394 2.7259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      9599 days (26.28 yr)  
   first obs. used      1994-01-05  
   last obs. used      2020-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60591  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:30:58  

Additional Information
 Earth MOID = 1.71568 au 
 Jupiter MOID = 1.80113 au 
 T_jup = 3.254 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457454.5 (2016-Mar-07.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08288631170122769 4.7367e-08  
q 2.729330908223436 1.4741e-07 au
tp 2457481.155793928989
(2016-Apr-02.65579393)
0.00033387 TDB
node 302.4734374615549 0.00012158 deg
peri 300.7258117002558 0.00013612 deg
i 2.748545074505332 6.7035e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      9599 days (26.28 yr)  
   first obs. used      1994-01-05  
   last obs. used      2020-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60591  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:30:58  

Additional Information
 Jupiter MOID = 1.80113 au 
 T_jup = 3.254 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.243654454947368E-15 -6.899824236465184E-15 -6.21563222973255E-12 1.265686680018908E-14 -1.089109748749046E-12 1.390717375202354E-15
q -6.899824236465184E-15 2.172986412213334E-14 2.124116691371066E-11 -5.075383469309374E-14 3.743598114999932E-12 -4.430834395918843E-15
tp -6.21563222973255E-12 2.124116691371066E-11 1.114706500716602E-7 -9.691336171751255E-11 2.048170454662964E-8 -6.936057646464402E-12
node 1.265686680018908E-14 -5.075383469309374E-14 -9.691336171751255E-11 1.478179962366733E-8 -1.478214718531157E-8 3.37143045080449E-10
peri -1.089109748749046E-12 3.743598114999932E-12 2.048170454662964E-8 -1.478214718531157E-8 1.852901369423821E-8 -3.38008049462285E-10
i 1.390717375202354E-15 -4.430834395918843E-15 -6.936057646464402E-12 3.37143045080449E-10 -3.38008049462285E-10 4.493629345190885E-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 15.46   n/a E2021B55  
diameter diameter 4.701 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100177 (1994 AH5)          Discovered 1994-Jan-05 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1994 AH5 = 2000 FQ65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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