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19237 (1994 AP)
Classification: Main-belt Asteroid          SPK-ID: 2019237
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08179052296390038 1.9916e-08  
a 2.311888686823695 7.6533e-09 au
q 2.12279810209406 4.5352e-08 au
i 7.105962984326881 8.4797e-07 deg
node 84.41610711418664 9.5545e-06 deg
peri 42.94917272781676 1.4452e-05 deg
M 221.7899110755377 1.3022e-05 deg
tp 2459693.430910046133
(2022-Apr-23.93091005)
4.7246e-05 TDB
period 1283.952054423427
3.52
6.3756e-06
1.746e-08
d
yr
n .2803843015475076 1.3923e-09 deg/d
Q 2.50097927155333 8.2793e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1976  
   data-arc span      9868 days (27.02 yr)  
   first obs. used      1994-01-04  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:49:26  

Additional Information
 Earth MOID = 1.14435 au 
 Jupiter MOID = 2.54763 au 
 T_jup = 3.569 
[ show covariance matrix ]

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 14.18   n/a E2021B10  
diameter diameter 4.223 km 0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 64.951 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.299   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19237 (1994 AP)          Discovered 1994-Jan-04 by Kobayashi, T. at Oizumi
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1994 AP = 1999 NT41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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