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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07593300715309285 4.5985e-08  
a 3.050143282757326 1.368e-08 au
q 2.818536731049756 1.409e-07 au
i 13.11385849028823 5.2653e-06 deg
node 346.1966952238029 1.9538e-05 deg
peri 193.4019390929502 3.5656e-05 deg
M 154.6078023496761 2.9551e-05 deg
tp 2458164.882176485829
(2018-Feb-15.38217649)
0.00015958 TDB
period 1945.713035780253
5.33
1.309e-05
3.584e-08
d
yr
n .1850221452906265 1.2448e-09 deg/d
Q 3.281749834464896 1.4719e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2755  
   data-arc span      45715 days (125.16 yr)  
   first obs. used      1895-02-27  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42954  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:04:55  

Additional Information
 Earth MOID = 1.82457 au 
 Jupiter MOID = 1.6997 au 
 T_jup = 3.193 
[ 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-August); 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 1.84335930966736 1.84335811952437 1.8433604998244 4.19812377446878 4.08720496245419 2416075.988626536 2.16317254284471 305.075210980992 26.6797894063243 79.9282292726797 2823876.96589104 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:05:09 2020-May-20 01:05
1951-May-17 01:09 00:01 Jupiter 1.70544196380027 1.70544149040074 1.70544243722172 4.08798857145235 3.96463532317489 2433783.547653739 1.1734645738327 718.545970299618 18.3246869485837 88.9361601572664 3202045.43454075 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:05:09 2020-May-20 01:05
1999-Dec-03 12:02 < 00:01 Jupiter 1.91189028274337 1.91188971778571 1.91189084770157 3.374263622793 3.24030821609802 2451516.001575215 0.356185840387566 87.6950552161954 19.7343401230957 -78.0081724138914 2700849.36324801 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:05:09 2020-May-20 01:05
2009-Jul-06 13:49 < 00:01 Jupiter 1.89007283038859 1.89007236139682 1.8900732993811 4.23849568104418 4.13141138761136 2455019.075462995 0.223757461646807 136.284044898725 17.7721545110536 84.5051146478659 3460799.26547059 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:05:09 2020-May-20 01:05
2057-Dec-30 00:43 < 00:01 Jupiter 1.71131235599832 1.71131190739229 1.71131280461632 4.12776786236613 4.00606510585482 2472727.530156755 0.93219116090396 521.811065424024 16.6041505632744 88.61528782329 3094022.74332178 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:05:09 2020-May-20 01:05
2106-Jul-14 08:51 00:02 Jupiter 1.87484436330965 1.87484327431491 1.87484545230567 3.40484741254549 3.26946787988543 2490454.868843864 2.12597035637865 166.760202239793 50.7274859741875 77.9554975038955 2680467.57862008 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:05:09 2020-May-20 01:05
2116-Feb-18 16:28 00:02 Jupiter 1.94548937633997 1.94548791756864 1.94549083512037 4.29885083477552 4.19635118630082 2493961.185924567 2.11797037377607 243.622718931212 26.5487612734959 73.8676089635321 2897984.34480055 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:05:09 2020-May-20 01:05
2164-Aug-14 08:58 00:03 Jupiter 1.72264006504416 1.72263948196149 1.72264064814544 4.17076607616208 4.05115899496749 2511670.873395696 2.9655652815622 464.525498765361 18.052601222776 87.6505594659819 2389191.29905095 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:05:09 2020-May-20 01:05

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