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11677 (1998 DY4)
Classification: Main-belt Asteroid          SPK-ID: 2011677
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1300731735773797 2.8533e-08  
a 2.217598919277713 6.7198e-09 au
q 1.929148790125494 6.2537e-08 au
i 7.229858871346043 3.4117e-06 deg
node 141.2619657255572 3.3378e-05 deg
peri 137.3007934902469 3.7489e-05 deg
M 148.9693593548776 1.7647e-05 deg
tp 2458501.365742591004
(2019-Jan-17.86574259)
5.8735e-05 TDB
period 1206.210011544601
3.30
5.4826e-06
1.501e-08
d
yr
n .2984554899681238 1.3566e-09 deg/d
Q 2.506049048429933 7.5939e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1726  
   data-arc span      15090 days (41.31 yr)  
   first obs. used      1979-07-24  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4961  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:46:42  

Additional Information
 Earth MOID = .919851 au 
 Jupiter MOID = 2.62463 au 
 T_jup = 3.631 
[ 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 14.4   n/a MPO439169  
diameter diameter 3.832 km 0.720 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 3.1074 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Fatka, P.; Vokrouhlický, D.; Scheirich, P.; et al. (2019) Icarus 333, 429-463.]
geometric albedo albedo 0.249   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

11677 (1998 DY4)          Discovered 1998-Feb-22 by JPL/GEODSS NEAT at Haleakala
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DY4 = 1979 OZ = 1982 JY3 = 1992 MQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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