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26 Proserpina (A853 JA)
Classification: Main-belt Asteroid          SPK-ID: 2000026
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 127 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08964685984040682 2.1763e-08  
a 2.655568339142187 6.4035e-09 au
q 2.417504976446486 5.8226e-08 au
i 3.562408381527183 3.3086e-07 deg
node 45.77308545952321 3.0849e-06 deg
peri 193.5796111155001 1.7274e-05 deg
M 242.2799554643605 2.1164e-05 deg
tp 2459717.371477371884
(2022-May-17.87147737)
9.4204e-05 TDB
period 1580.646121804217
4.33
5.7173e-06
1.565e-08
d
yr
n .2277549636404894 8.238e-10 deg/d
Q 2.893631701837888 6.9776e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2823  
   data-arc span      58481 days (160.11 yr)  
   first obs. used      1861-01-31  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49817  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:10:45  

Additional Information
 Earth MOID = 1.40397 au 
 Jupiter MOID = 2.10121 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 7.49   n/a E2021B10  
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. 2020-October); 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.]
[Bin, L.; Hai-bin, Z.; Xin, W. (2016) Chinese Astron. Astrophys. 40, 373-385.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
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 (A853 JA)          Discovered 1853-May-05 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A853 JA = 1935 KK = 1954 WD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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