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4707 Khryses (1988 PY)
Classification: Jupiter Trojan          SPK-ID: 2004707
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1213203363053265 2.8846e-08  
a 5.195491321908238 7.3451e-08 au
q 4.565172567462925 1.573e-07 au
i 7.092836568252415 2.2479e-06 deg
node 310.16201900026 9.1057e-06 deg
peri 66.29150249818731 1.401e-05 deg
M 240.5494731541511 1.4525e-05 deg
tp 2460635.738022748061
(2024-Nov-21.23802275)
0.00019813 TDB
period 4325.520379295484
11.84
9.1727e-05
2.511e-07
d
yr
n .08322698043989675 1.7649e-09 deg/d
Q 5.825810076353552 8.2362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1981  
   data-arc span      24478 days (67.02 yr)  
   first obs. used      1953-08-16  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47837  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:40:01  

Additional Information
 Earth MOID = 3.57316 au 
 Jupiter MOID = .030863 au 
 T_jup = 2.970 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.64   n/a E2021B10  
diameter diameter 37.766 km 0.465 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 6.862 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D.; French, L.M.; Davitt, C.; Coley, D.R. (2014) Minor Planet Bull. 41, 95-100.]
[Stephens, R.D.; Coley, D.R.; French, L.M. (2015) Minor Planet Bull. 42, 216-224.]
[Stephens, R.D.; Coley, D.R.; French, L.M. (2016) Minor Planet Bull. 43, 265-270.]
[Stephens, R.D.; Coley, D.R. (2017) Minor Planet Bull. 44, 252-257.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.086   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

4707 Khryses (1988 PY)          Discovered 1988-Aug-13 by Shoemaker, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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