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1631 Kopff (1936 UC)
Classification: Main-belt Asteroid          SPK-ID: 2001631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2133500185386789 3.8544e-08  
a 2.235127230069721 5.8505e-09 au
q 1.75826279409804 8.7124e-08 au
i 7.491245739484246 4.2123e-06 deg
node 16.79787451762997 2.7105e-05 deg
peri 314.9836257402318 2.8236e-05 deg
M 42.27525434089279 9.0789e-06 deg
tp 2458857.170518604096
(2020-Jan-08.67051860)
3.057e-05 TDB
period 1220.539393718424
3.34
4.7922e-06
1.312e-08
d
yr
n .2949515614594339 1.1581e-09 deg/d
Q 2.711991666041402 7.0987e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2425  
   data-arc span      34270 days (93.83 yr)  
   first obs. used      1926-10-05  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42262  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:38:09  

Additional Information
 Earth MOID = .757984 au 
 Jupiter MOID = 2.67827 au 
 T_jup = 3.598 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.2   n/a MPO492769  
diameter diameter 8.636 km 0.395 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 6.683 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Sada, P.V.; Canizales, E.D.; Armada, E.M. (2004) Minor Planet Bull. 31, 49-50.]
geometric albedo albedo 0.342   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1631 Kopff (1936 UC)          Discovered 1936-Oct-11 by Vaisala, Y. at Turku
Observation 1926 Oct. 5 as 1926 TH by K. Reinmuth, Heidelberg, should be considered a prediscovery.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1936 UC = 1926 TH = 1935 FG = 1946 SA = 1952 HV2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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