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2645 Daphne Plane (1976 QD)
Classification: Main-belt Asteroid          SPK-ID: 2002645
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051538544503283 3.6829e-08  
a 2.39284550850183 8.4118e-09 au
q 2.141228580178707 8.829e-08 au
i 13.78686419769792 4.8257e-06 deg
node 349.7599561054338 1.5849e-05 deg
peri 79.57722650050117 2.8602e-05 deg
M 230.4614611678433 2.2867e-05 deg
tp 2459486.982149970237
(2021-Sep-29.48214997)
8.6186e-05 TDB
period 1351.980465181919
3.70
7.1291e-06
1.952e-08
d
yr
n .2662760367262846 1.4041e-09 deg/d
Q 2.644462436824953 9.2963e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2062  
   data-arc span      23996 days (65.70 yr)  
   first obs. used      1954-10-06  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3783  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:48:07  

Additional Information
 Earth MOID = 1.20188 au 
 Jupiter MOID = 2.61305 au 
 T_jup = 3.484 
[ 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 12.0   n/a MPO435722  
diameter diameter 15.58 km 1.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 8.360 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2007) Minor Planet Bull. 34, 32-37.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.0875   0.015 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3

2645 Daphne Plane (1976 QD)          Discovered 1976-Aug-30 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1976 QD = 1965 SG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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