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654 Zelinda (A908 AM)
Classification: Main-belt Asteroid          SPK-ID: 2000654
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 113 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2305099083111736 1.4384e-08  
a 2.298977876954669 1.7849e-09 au
q 1.769040697328432 3.3528e-08 au
i 18.10166747554665 9.7545e-07 deg
node 278.407851943045 1.7713e-06 deg
peri 214.2751307474936 4.1424e-06 deg
M 200.0072790049119 2.4742e-06 deg
tp 2459962.346115368232
(2023-Jan-17.84611537)
8.8864e-06 TDB
period 1273.211682791603
3.49
1.4828e-06
4.06e-09
d
yr
n .2827495261515944 3.2928e-10 deg/d
Q 2.828915056580906 2.1963e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3197  
   # delay obs. used      12  
   # Doppler obs. used      0  
   data-arc span      41491 days (113.60 yr)  
   first obs. used      1908-01-04  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42888  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:52:06  

Additional Information
 Earth MOID = .808009 au 
 Jupiter MOID = 2.34961 au 
 T_jup = 3.493 
[ 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 8.66   n/a MPO636070 IRAS observations used: 14
diameter diameter 160.736 km 1.342 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 31.735 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Schober, H.J. (1975) Astron. Astrophys. 44, 85-89.]
[Warner, B.D.; Higgins, D. (2008) Minor Planet Bull. 35, 32-33.]
[Stephens, R.D. (2009) Minor Planet Bull. 36, 125-126.]
[Stephens, R.D. (2015) Minor Planet Bull. 42, 70-74.]
geometric albedo albedo 0.027   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.698   0.017 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=8.20, mean=15.16, max.=22.34) deg.
U-B UB 0.328   0.036 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=8.20, mean=15.16, max.=22.34) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Ch   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)

654 Zelinda (A908 AM)          Discovered 1908-Jan-04 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A908 AM = 1965 QG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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