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JPL Small-Body Database Browser
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2090 Mizuho (1978 EA)
Classification: Main-belt Asteroid          SPK-ID: 2002090
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335826033836742 4.7164e-08  
a 3.074204655209926 1.7628e-08 au
q 2.663544394032773 1.4296e-07 au
i 11.8110546585378 5.4188e-06 deg
node 339.835177195856 2.1508e-05 deg
peri 341.3047828944474 2.9085e-05 deg
M 87.12111680291211 2.1533e-05 deg
tp 2458124.048691614711
(2018-Jan-05.54869161)
0.00011689 TDB
period 1968.781821366307
5.39
1.6934e-05
4.636e-08
d
yr
n .1828541873421836 1.5728e-09 deg/d
Q 3.484864916387078 1.9983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2326  
   data-arc span      25106 days (68.74 yr)  
   first obs. used      1951-03-13  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42983  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:10:13  

Additional Information
 Earth MOID = 1.65357 au 
 Jupiter MOID = 1.87621 au 
 T_jup = 3.184 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.8   n/a MPO502173  
diameter diameter 17.991 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.47 h n/a LCDB (Rev. 2019-January); 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:
[Brinsfield, J.W. (2010) Minor Planet Bull. 37, 146-147.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.219   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.871   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.78 deg.
U-B UB 0.499   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.78 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

2090 Mizuho (1978 EA)          Discovered 1978-Mar-12 by Urata, T. at Yakiimo Station
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1907-Jan-07 00:57 00:03 Jupiter 1.95810959083194 1.95810870154532 1.95811048012012 2.70383326007342 2.53881294760457 2417582.539376493 2.94418826855436 113.43157993368 18.0630565996292 -61.4952458595141 2732057.8002397 T 36 CATAB v2.0f-lin.ifort 2019-Dec-13 21:10:28 2019-Dec-13 21:10
1956-May-01 08:42 00:01 Jupiter 1.92282670327529 1.92282599403315 1.92282741251994 3.78460948803423 3.66636753850909 2435594.862697035 1.36186848878847 235.897419142378 26.4060754756242 -85.4244135105944 2523299.81627377 T 36 CATAB v2.0f-lin.ifort 2019-Dec-13 21:10:28 2019-Dec-13 21:10
2015-May-18 22:25 < 00:01 Jupiter 1.88481285829234 1.88481237713054 1.88481333945602 3.69052519509072 3.56667763542699 2457161.433866596 0.218294571815422 208.084364884012 16.5035591809396 -86.2131353497228 2890118.04194214 T 36 CATAB v2.0f-lin.ifort 2019-Dec-13 21:10:28 2019-Dec-13 21:10
2074-Jun-04 13:48 00:02 Jupiter 1.86317451589027 1.86317406354827 1.86317496823353 3.59573451329038 3.46699893166495 2478728.075040654 1.49882370664257 199.444728415786 15.6079064209338 -86.4243470076222 2908157.3346403 T 36 CATAB v2.0f-lin.ifort 2019-Dec-13 21:10:28 2019-Dec-13 21:10
2133-Jun-21 21:51 00:03 Jupiter 1.85889860635723 1.85889811028597 1.85889910243408 3.49870101661831 3.36594596978425 2500294.410405752 2.96750319778506 279.542032388652 14.4898243846358 -85.7630827890367 2928320.33712487 T 36 CATAB v2.0f-lin.ifort 2019-Dec-13 21:10:28 2019-Dec-13 21:10
2192-Jul-07 04:56 00:05 Jupiter 1.87133802119439 1.87133715746141 1.87133888495216 3.39919095459824 3.26331739828142 2521859.705822489 4.52197343526279 391.16541751883 13.6052875842296 -82.852068922545 2954380.8437284 T 36 CATAB v2.0f-lin.ifort 2019-Dec-13 21:10:28 2019-Dec-13 21:10

Alternate Designations
 1978 EA = 1937 RE = 1942 PG = 1951 EH = 1952 HA4 = 1953 RT = 1953 TP = 1959 VD = 1964 TE = 1970 WV = 1978 EJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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