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127196 Hanaceplechova (2002 HH)
Classification: Main-belt Asteroid          SPK-ID: 2127196
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1415323533609678 3.7633e-08  
a 2.63397344706955 1.2907e-08 au
q 2.261180986415496 9.5728e-08 au
i 5.525179087384549 3.8511e-06 deg
node 149.8294542562278 3.8762e-05 deg
peri 101.9336801477495 4.2688e-05 deg
M 149.2797490096681 1.6537e-05 deg
tp 2458749.038556556438
(2019-Sep-22.53855656)
7.0792e-05 TDB
period 1561.404820050886
4.27
1.1477e-05
3.142e-08
d
yr
n .2305616041253592 1.6947e-09 deg/d
Q 3.006765907723604 1.4734e-08 au
  Orbit Determination Parameters
   # obs. used (total)      829  
   data-arc span      8750 days (23.96 yr)  
   first obs. used      1997-01-11  
   last obs. used      2020-12-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55401  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:36:46  

Additional Information
 Earth MOID = 1.25498 au 
 Jupiter MOID = 2.04775 au 
 T_jup = 3.378 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457746.5 (2016-Dec-24.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1408059318144505 3.7585e-08  
q 2.264462310957557 9.55e-08 au
tp 2457187.918439237427
(2015-Jun-14.41843924)
7.0751e-05 TDB
node 149.8789821506726 3.8797e-05 deg
peri 102.2758795254009 4.2781e-05 deg
i 5.521642959771678 3.849e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      829  
   data-arc span      8750 days (23.96 yr)  
   first obs. used      1997-01-11  
   last obs. used      2020-12-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55401  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:36:46  

Additional Information
 Jupiter MOID = 2.04775 au 
 T_jup = 3.378 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.412652395537041E-15 -3.568117502293353E-15 -1.189432121501156E-12 -1.402707022017121E-14 -3.17244651307858E-13 -3.787428773390827E-15
q -3.568117502293353E-15 9.12023138901312E-15 3.115647780425442E-12 3.629556983097468E-14 8.370151476159298E-13 9.821389159760177E-15
tp -1.189432121501156E-12 3.115647780425442E-12 5.005718270238301E-9 2.070322189956883E-11 1.289399270942527E-9 4.669135751321844E-12
node -1.402707022017121E-14 3.629556983097468E-14 2.070322189956883E-11 1.505172195449426E-9 -1.492341988554379E-9 4.372606419286416E-11
peri -3.17244651307858E-13 8.370151476159298E-13 1.289399270942527E-9 -1.492341988554379E-9 1.830174765591856E-9 -4.225204764877296E-11
i -3.787428773390827E-15 9.821389159760177E-15 4.669135751321844E-12 4.372606419286416E-11 -4.225204764877296E-11 1.481467577677042E-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 15.60   n/a E2021B55  
diameter diameter 2.261 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.262   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

127196 Hanaceplechová           Discovered 2002 Apr. 16 at Ondřejov.
Hana Ceplechová (b. 1945) served as a secretary in the Interplanetary Matter Department of the Ondřejov Observatory for three decades. Her sincerity and faithfulness created a friendly work environment for the discoverers. As the wife of Zdeněk Ceplecha, she provided support for his achievements in meteor science.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100330/MPCPages.arcLast Updated: 2010-04-05

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