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JPL Small-Body Database Browser
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1743 Schmidt (4109 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2001743
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1346297365733405 4.2141e-08  
a 2.47356309504997 7.9769e-09 au
q 2.140547947165855 1.0245e-07 au
i 6.356832305745993 4.4736e-06 deg
node 189.6391458864891 2.7623e-05 deg
peri 359.5102461260918 2.9917e-05 deg
M 202.3401272115042 1.1429e-05 deg
tp 2459222.802559169487
(2021-Jan-08.30255917)
4.5856e-05 TDB
period 1420.963478776588
3.89
6.8736e-06
1.882e-08
d
yr
n .2533492277436648 1.2255e-09 deg/d
Q 2.806578242934084 9.0508e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2746  
   data-arc span      32430 days (88.79 yr)  
   first obs. used      1931-01-16  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44954  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:08:10  

Additional Information
 Earth MOID = 1.14151 au 
 Jupiter MOID = 2.15099 au 
 T_jup = 3.462 
[ 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 12.48   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
diameter diameter 19.338 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 17.45 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.057   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.620   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.88 deg.
U-B UB 0.260   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.88 deg.

1743 Schmidt (4109 P-L)          Discovered 1960-Sep-24 by PLS at Palomar
These planets have all been discovered as a result of the Palomar survey of faint minor planets and subsequently identified with planets observed at other oppositions. In Sept. and Oct. 1960, T. Gehrels exposed 130 plates with the 122 cm Schmidt camera at Palomar. In the following years C. J. van Houten and I. van Houten-Groeneveld measured these plates astrometrically and photometrically at Leiden. P. Herget, Cincinnati, computed the orbits of the planets found on the NORC computer, Dahlgren, Virginia, USA.
Note: "planet" implies "minor planet"
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 4109 P-L = 1931 BJ = 1939 CN = 1943 EA = 1947 GD = 1951 JU = 1952 QD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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