Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1923941287420403 3.4088e-08  
a 3.16505483523769 1.371e-08 au
q 2.556116867791353 1.0984e-07 au
i 6.056475837245467 3.5608e-06 deg
node 264.7741640650282 3.7478e-05 deg
peri 40.12209044654317 3.8476e-05 deg
M 232.8068962564908 1.0353e-05 deg
tp 2459927.160158300152
(2022-Dec-13.66015830)
6.0473e-05 TDB
period 2056.696859254089
5.63
1.3364e-05
3.659e-08
d
yr
n .1750379490201404 1.1373e-09 deg/d
Q 3.773992802684027 1.6348e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3087  
   data-arc span      31922 days (87.40 yr)  
   first obs. used      1933-08-28  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41446  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:56:13  

Additional Information
 Earth MOID = 1.54265 au 
 Jupiter MOID = 1.49091 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 11.49   n/a E2021B10  
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. 2020-October); 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Feb-25 17:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin