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JPL Small-Body Database Browser
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2119 Schwall (1930 QG)
Classification: Main-belt Asteroid          SPK-ID: 2002119
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1567835148294935 2.7159e-08  
a 2.251184880768531 6.3144e-09 au
q 1.898236202630627 6.1426e-08 au
i 3.83782934037945 3.0807e-06 deg
node 268.19021976 5.1044e-05 deg
peri 19.97827508889359 5.2507e-05 deg
M 240.8314423538746 1.4174e-05 deg
tp 2459408.889299209688
(2021-Jul-13.38929921)
4.9313e-05 TDB
period 1233.715928257423
3.38
5.1907e-06
1.421e-08
d
yr
n .2918013715754537 1.2277e-09 deg/d
Q 2.604133558906435 7.3043e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2744  
   data-arc span      32749 days (89.66 yr)  
   first obs. used      1930-08-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44631  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:35:09  

Additional Information
 Earth MOID = .882405 au 
 Jupiter MOID = 2.54803 au 
 T_jup = 3.608 
[ 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 13.3   n/a MPO502173  
diameter diameter 5.233 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.9393 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2018) http://www.asu.cas.cz/~ppravec/neo.htm]
[Benishek, V. (2019) Minor Planet Bull. 46, 87-90.]
geometric albedo albedo 0.489   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2119 Schwall           Discovered 1930 Aug. 30 by M. Wolf and M. Ferrero at Heidelberg.
Named in memory of August Schwall (1877-1947), mechanician at the Heidelberg-Konigstuhl Observatory for almost half a century, night assistant to Wolf during 1914-1932, guiding exposures with the 0.72-m reflector. Name proposed by A. Bohrmann.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5524Last Updated: 2006-03-21

[ show close-approach data ]
Alternate Designations
 1930 QG = 1964 TY1 = 1964 UK = 1974 QA2 = 1974 SL2 = 1974 TP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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