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1567 Alikoski (1941 HN)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001567
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08480960292800921 5.5273e-08  
a 3.213334346724102 2.3015e-08 AU
q 2.940812736703498 1.8134e-07 AU
i 17.26975892972731 6.9651e-06 deg
node 51.56354538954048 1.7188e-05 deg
peri 111.5087590820546 3.9219e-05 deg
M 323.0773612845928 3.4934e-05 deg
tp 2457216.285635535151
(2015-Jul-12.78563554)
0.00020455 JED
period 2103.934916229015
5.76
2.2604e-05
6.189e-08
d
yr
n .1711079545394139 1.8383e-09 deg/d
Q 3.485855956744707 2.4967e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1063  
   data-arc span      27738 days (75.94 yr)  
   first obs. used      1938-10-15  
   last obs. used      2014-09-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51176  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 13:51:11  

Additional Information
 Earth MOID = 1.99556 AU 
 T_jup = 3.115 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.47 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
diameter diameter 67.83 km 2.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
rotation period rot_per 16.405 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Stephens, R.D. (2004) Minor Planet Bul. 31, 60-61.]
geometric albedo albedo 0.0626   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
B-V BV .720 mag .040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=1.79, mean=4.59, max.=8.72) deg.
Tholen spectral type spec_T PU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 1 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B C   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)

1567 Alikoski (1941 HN)          Discovered 1941-Apr-22 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1941 HN = 1947 HE = 1947 HG = 1948 OC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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