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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
26 Proserpina
Classification: Main-belt Asteroid          SPK-ID: 2000026
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 117 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09014487637645933 3.3566e-08  
a 2.654330893820503 7.1276e-09 au
q 2.415056563534837 8.8574e-08 au
i 3.563412724822086 3.4428e-06 deg
node 45.77800293433459 7.2815e-05 deg
peri 193.4497779897228 7.7261e-05 deg
M 105.7236029870483 2.731e-05 deg
tp 2458136.625526896312
(2018-Jan-18.12552690)
0.00011935 TDB
period 1579.541423099113
4.32
6.3623e-06
1.742e-08
d
yr
n .2279142507663193 9.1802e-10 deg/d
Q 2.893605224106169 7.7701e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2320  
   data-arc span      57981 days (158.74 yr)  
   first obs. used      1861-01-31  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52435  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:48:11  

Additional Information
 Earth MOID = 1.40287 au 
 Jupiter MOID = 2.10282 au 
 T_jup = 3.380 
[ 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 7.4   n/a MPO458824  
diameter diameter 94.80 km 1.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
rotation period rot_per 13.110 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Scaltriti, F.; Zappala, V. (1979) Icarus 39, 124-130.]
[Ditteon, R.; Hawkins, S. (2007) Minor Planet Bull. 34, 59-64.]
[Fauerbach, M.; Marks, S.A.; Lucas, M.P. (2008) Minor Planet Bull. 35, 44-46.]
[Pilcher, F. (2008) Minor Planet Bull. 35, 135-138.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2013) Minor Planet Bull. 40, 189.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Li, B; Zhao, H.-b.; Wang, X. (2016) Chinese Astron. Astrophys. 40, 373-385.]
geometric albedo albedo 0.1966   0.007 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
B-V BV 0.891   0.018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=4.17, mean=15.15, max.=21.44) deg.
U-B UB 0.525   0.056 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=4.17, mean=15.15, max.=21.44) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

26 Proserpina          Discovered 1853-May-05 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1935 KK = 1954 WD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin