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JPL Small-Body Database Browser
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1535 Paijanne (1939 RC)
Classification: Main-belt Asteroid          SPK-ID: 2001535
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1920080805077684 3.4784e-08  
a 3.166144484736491 1.519e-08 au
q 2.558219159611979 1.1202e-07 au
i 6.057040626132949 3.8799e-06 deg
node 264.7831255175944 4.1263e-05 deg
peri 39.99546215597665 4.2464e-05 deg
M 127.9843233883338 1.0863e-05 deg
tp 2457868.941943517751
(2017-Apr-25.44194352)
6.2249e-05 TDB
period 2057.759054868871
5.63
1.4809e-05
4.054e-08
d
yr
n .174947596098874 1.259e-09 deg/d
Q 3.774069809861002 1.8107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2591  
   data-arc span      31509 days (86.27 yr)  
   first obs. used      1933-08-28  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4432  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:02:00  

Additional Information
 Earth MOID = 1.54592 au 
 Jupiter MOID = 1.48843 au 
 T_jup = 3.166 
[ 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 11.5   n/a MPO502168  
diameter diameter 23.836 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.8448 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.164   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1535 Paijanne (1939 RC)          Discovered 1939-Sep-09 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1939 RC = 1933 QE1 = 1944 OA = 1956 XB = 1985 XE2 = A916 OB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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