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JPL Small-Body Database Browser
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399 Persephone (A895 DD)
Classification: Main-belt Asteroid          SPK-ID: 2000399
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07509840829670093 4.6487e-08  
a 3.054173308993524 1.411e-08 au
q 2.824809754825842 1.4308e-07 au
i 13.10135883240821 5.3085e-06 deg
node 346.2665497823656 1.9624e-05 deg
peri 194.2049058342955 3.601e-05 deg
M 79.81759654468499 2.9871e-05 deg
tp 2458168.249913840382
(2018-Feb-18.74991384)
0.00016179 TDB
period 1949.570492646267
5.34
1.3511e-05
3.699e-08
d
yr
n .1846560569919946 1.2797e-09 deg/d
Q 3.283536863161206 1.517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2429  
   data-arc span      45536 days (124.67 yr)  
   first obs. used      1895-02-27  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45625  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:52:58  

Additional Information
 Earth MOID = 1.83129 au 
 Jupiter MOID = 1.69975 au 
 T_jup = 3.192 
[ 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 9.0   n/a MPO347514  
diameter diameter 39.566 km 1.885 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 9.136 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Bembrick, C. (2002) Minor Planet Bull. 29, 76-78.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
geometric albedo albedo 0.311   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B X   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)

399 Persephone (A895 DD)          Discovered 1895-Feb-23 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1902-Nov-22 11:44 00:02 Jupiter 1.84335927974052 1.843358081311 1.84336047818429 4.19812332117906 4.08720449503787 2416075.988581694 2.17290457211583 306.857984158056 26.8035637278155 79.9156428507222 2802523.98401733 T 34 CATAB v2.0f-lin.ifort 2019-Nov-07 01:53:05 2019-Nov-07 01:53
1951-May-17 01:09 00:01 Jupiter 1.70544186736753 1.70544139165448 1.70544234310289 4.08798806956425 3.96463479858794 2433783.547649904 1.17791441843402 723.529164328524 18.3853947054492 88.9361924802811 3171552.78680389 T 34 CATAB v2.0f-lin.ifort 2019-Nov-07 01:53:05 2019-Nov-07 01:53
1999-Dec-03 12:02 < 00:01 Jupiter 1.91189021130254 1.91188964392735 1.91189077867827 3.37426300268693 3.24030756524763 2451516.001617567 0.356798820378493 87.8915432008252 19.780546420668 -77.9947088480131 2673424.45785379 T 34 CATAB v2.0f-lin.ifort 2019-Nov-07 01:53:05 2019-Nov-07 01:53
2009-Jul-06 13:49 < 00:01 Jupiter 1.89007276727325 1.89007229738493 1.89007323716232 4.23849528285106 4.13141097547503 2455019.075475926 0.225856368942732 136.565975653755 17.8217809959175 84.5223188786831 3443800.29708322 T 34 CATAB v2.0f-lin.ifort 2019-Nov-07 01:53:05 2019-Nov-07 01:53
2057-Dec-30 00:43 < 00:01 Jupiter 1.71131226363275 1.71131181221846 1.7113127150592 4.12776734086975 4.00606456184706 2472727.530198726 0.94049722469879 525.706702555218 16.6952124776862 88.6116878330592 3076830.61918452 T 34 CATAB v2.0f-lin.ifort 2019-Nov-07 01:53:05 2019-Nov-07 01:53
2106-Jul-14 08:51 00:02 Jupiter 1.87484432278352 1.87484322132855 1.87484542423977 3.40484670366506 3.26946713866533 2490454.868933227 2.1410449331419 167.607761451841 51.0836436170378 77.8083582191066 2654652.34618197 T 34 CATAB v2.0f-lin.ifort 2019-Nov-07 01:53:05 2019-Nov-07 01:53
2116-Feb-18 16:28 00:02 Jupiter 1.94548927744609 1.94548781067487 1.94549074422636 4.29885049366033 4.19635083157965 2493961.186001772 2.1341378691386 244.878750432018 26.6399328894181 73.8530262610586 2886515.03232349 T 34 CATAB v2.0f-lin.ifort 2019-Nov-07 01:53:05 2019-Nov-07 01:53
2164-Aug-14 08:58 00:03 Jupiter 1.72263996612458 1.7226393827614 1.72264054950647 4.17076545387872 4.05115834734212 2511670.873500467 2.9855603067474 466.553539111642 18.0962180837581 87.661399930886 2380217.1848024 T 34 CATAB v2.0f-lin.ifort 2019-Nov-07 01:53:05 2019-Nov-07 01:53

Alternate Designations
 A895 DD = 1948 CC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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