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19022 Penzel (2000 SR44)
Classification: Main-belt Asteroid          SPK-ID: 2019022
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0834515870990913 3.7447e-08  
a 2.535182444795979 9.0484e-09 au
q 2.323617446192 9.8366e-08 au
i 2.175699542244584 7.3968e-06 deg
node 10.98346759014475 7.7904e-05 deg
peri 62.02983318565362 0.00011601 deg
M 320.3981053174901 8.1443e-05 deg
tp 2459362.690614361535
(2021-May-28.19061436)
0.00033374 TDB
period 1474.389587625958
4.04
7.8934e-06
2.161e-08
d
yr
n .2441688431750709 1.3072e-09 deg/d
Q 2.746747443399958 9.8035e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1350  
   data-arc span      24411 days (66.83 yr)  
   first obs. used      1954-03-07  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47754  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:44:27  

Additional Information
 Earth MOID = 1.33875 au 
 Jupiter MOID = 2.4412 au 
 T_jup = 3.443 
[ 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 15.21   n/a E2021B10  
diameter diameter 5.246 km 0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 15.890 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.059   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19022 Penzel           Discovered 2000 Sept. 26 by G. Lehmann at Volkssternwarte Drebach.
Edgar Penzel (b. 1921) founded the school observatory in Rodewisch Saxony, and directed it from 1950 to 1986. In 1957, the astronomers on the observatory's staff were the first in Central Europe to watch the artificial Satellite Sputnik 1. The observatory was named for the first German astronaut, Sigmund Jähn, in 1979.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 2000 SR44 = 1998 FE40 
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