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 ]  
1082 Pirola (1927 UC)
Classification: Main-belt Asteroid          SPK-ID: 2001082
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 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1810679824774959 1.5593e-08  
a 3.124791163799009 8.2834e-09 au
q 2.558991532106416 4.9338e-08 au
i 1.853887048798654 5.9771e-07 deg
node 147.9345568635291 2.8336e-05 deg
peri 186.5459141103701 2.9173e-05 deg
M 345.9421450533906 4.8313e-06 deg
tp 2459279.285533590853
(2021-Mar-05.78553359)
2.7143e-05 TDB
period 2017.576095387713
5.52
8.0225e-06
2.196e-08
d
yr
n .178431931674339 7.095e-10 deg/d
Q 3.690590795491602 9.7832e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3670  
   data-arc span      34008 days (93.11 yr)  
   first obs. used      1927-10-28  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:57:28  

Additional Information
 Earth MOID = 1.54717 au 
 Jupiter MOID = 1.68975 au 
 T_jup = 3.189 
[ 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 10.48   n/a E2021B10 IRAS observations used: 6
diameter diameter 42.607 km 0.476 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 15.8525 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Baker, R.E.; Pilcher, F.; Benishek, V. (2011) Minor Planet Bull. 38, 111-113.]
[Gartrelle, G. (2012) Minor Planet Bull. 39, 40-46.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.052   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.705   0.049 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.29, mean=8.34, max.=11.38) deg.
U-B UB 0.315   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.29, mean=8.34, max.=11.38) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1082 Pirola (1927 UC)          Discovered 1927-Oct-28 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1927 UC = 1931 JQ = 1951 AH = 1952 DS = 1971 YJ = A916 UP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-19 04:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin