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664 Judith (A908 MC)
Classification: Main-belt Asteroid          SPK-ID: 2000664
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2308198807435496 1.0693e-08  
a 3.193940240225436 1.158e-08 au
q 2.456715334874577 3.7536e-08 au
i 8.580757058716619 7.4651e-07 deg
node 170.9143356091488 1.6561e-06 deg
peri 102.4502733735332 4.5739e-06 deg
M 303.8112199156822 3.3074e-06 deg
tp 2459525.913606741191
(2021-Nov-07.41360674)
1.9334e-05 TDB
period 2084.916210158564
5.71
1.1339e-05
3.104e-08
d
yr
n .1726688095406102 9.3907e-10 deg/d
Q 3.931165145576295 1.4253e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3336  
   data-arc span      41180 days (112.74 yr)  
   first obs. used      1908-06-24  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44304  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:43:20  

Additional Information
 Earth MOID = 1.45687 au 
 Jupiter MOID = 1.3531 au 
 T_jup = 3.137 
[ 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 9.97   n/a E2021B10 IRAS observations used: 6
diameter diameter 85.214 km 0.588 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 13.764 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:
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.040   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.695   0.017 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=6.72, mean=8.20, max.=10.35) deg.
U-B UB 0.238   0.045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=6.73, mean=9.03, max.=10.35) deg.
Tholen spectral type spec_T XC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

664 Judith (A908 MC)          Discovered 1908-Jun-24 by Kopff, A. at Heidelberg
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
1903-Nov-14 03:36 00:01 Jupiter 1.99262704872263 1.99262573341313 1.99262836403315 4.09430117532745 3.98912841628216 2416432.650051720 1.46501476459446 100.011582037727 8.55819708561938 -54.774123930243 7082894.60034505 T 47 CATAB v2.0g-lin.ifort 2021-May-03 18:44:43 2021-May-03 18:44
1990-Oct-29 06:49 < 00:01 Jupiter 1.69139905944266 1.69139853031057 1.69139958857456 1.42730624150967 1.01766337441833 2448193.783984093 0.648541521569446 202.976871480158 24.077019465921 23.601391594522 4730694.15125869 T 47 CATAB v2.0g-lin.ifort 2021-May-03 18:44:43 2021-May-03 18:44
2001-Aug-09 03:03 < 00:01 Jupiter 1.3707606105629 1.3707603975391 1.37076082358826 0.273775170734234 n/a 2452130.626924340 0.366057279979431 90.3555596674335 6.21613631965355 84.5164019151461 32827010.3359484 F 47 CATAB v2.0g-lin.ifort 2021-May-03 18:44:43 2021-May-03 18:44
2012-Jul-14 08:44 < 00:01 Jupiter 1.35979856392513 1.35979837974769 1.3597987481127 1.29782567756056 0.662227775920935 2456122.863613310 0.169988438992265 387.130719454248 21.3580480723747 -57.9934903652857 32330655.885695 T 47 CATAB v2.0g-lin.ifort 2021-May-03 18:44:43 2021-May-03 18:44
2023-May-10 13:12 < 00:01 Jupiter 1.68941719415658 1.6894167992386 1.68941758907446 2.81588453314802 2.63181807873067 2460075.050197977 0.26639086406012 23.340101335195 3.32525945989858 -58.9378507113028 6560432.5417025 T 47 CATAB v2.0g-lin.ifort 2021-May-03 18:44:43 2021-May-03 18:44
2110-May-10 17:16 < 00:01 Jupiter 1.95864059640968 1.95863974573053 1.95864144708972 2.88014735473895 2.72586504118085 2491851.219192636 0.991340639451547 80.9138141821696 4.10091899865008 -70.643661020025 8534868.56855882 T 47 CATAB v2.0g-lin.ifort 2021-May-03 18:44:43 2021-May-03 18:44
2121-Feb-21 01:49 00:01 Jupiter 1.54288274315296 1.54288203231834 1.54288345398442 1.14954819469042 0.472744250417985 2495790.575428001 1.13313460401896 2654.28333174571 63.56564160716 3.99281597989056 2818850.45409802 T 47 CATAB v2.0g-lin.ifort 2021-May-03 18:44:43 2021-May-03 18:44
2132-Jan-09 20:58 00:01 Jupiter 1.3485574230303 1.34855728629567 1.34855755976962 0.0530672814804715 n/a 2499765.373694226 1.23842633614146 332.478116512529 6.3148220449208 89.5566823512718 31934958.893672 F 47 CATAB v2.0g-lin.ifort 2021-May-03 18:44:43 2021-May-03 18:44
2142-Nov-24 17:57 00:02 Jupiter 1.4711349708474 1.47113413374069 1.47113580797987 1.36569835355329 0.844754100907595 2503737.248079571 1.65560521566211 842.411874349458 24.8712955250659 -33.0012399092104 11603273.8291076 T 47 CATAB v2.0g-lin.ifort 2021-May-03 18:44:43 2021-May-03 18:44
2153-Aug-29 01:16 00:02 Jupiter 1.86055574772241 1.8605542744828 1.86055722096467 3.49890961158037 3.36628335486524 2507667.552638085 1.87484838631672 136.754068234411 7.08268674371954 -66.0095032088229 7151860.26794792 T 47 CATAB v2.0g-lin.ifort 2021-May-03 18:44:43 2021-May-03 18:44

Alternate Designations
 A908 MC = 1951 AB1 = 1956 AH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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