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JPL Small-Body Database Browser
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27231 (1999 JM57)
Classification: Main-belt Asteroid          SPK-ID: 2027231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2635799066875506 3.6669e-08  
a 3.092798846728328 1.5493e-08 au
q 2.277599215304312 1.1155e-07 au
i 14.13387834071668 4.6318e-06 deg
node 223.8575458404879 1.5349e-05 deg
peri 220.1979493116692 1.7359e-05 deg
M 93.55947017068469 7.5121e-06 deg
tp 2458484.189220943102
(2018-Dec-31.68922094)
4.0569e-05 TDB
period 1986.670939044322
5.44
1.4928e-05
4.087e-08
d
yr
n .1812076639995429 1.3616e-09 deg/d
Q 3.907998478152345 1.9576e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1736  
   data-arc span      16123 days (44.14 yr)  
   first obs. used      1976-03-07  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46144  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:09:35  

Additional Information
 Earth MOID = 1.31192 au 
 Jupiter MOID = 1.52288 au 
 T_jup = 3.125 
[ 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 12.8   n/a MPO468048  
diameter diameter 8.014 km 0.675 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.251   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27231 (1999 JM57)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ 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
1902-Feb-28 14:22 00:05 Jupiter 1.86956390716949 1.86956153708674 1.86956627771633 1.47807229070222 1.13074309707567 2415809.098949547 4.4965589913603 2059.23824827011 150.280802964803 58.8453134741911 1463499.17621804 T 27 CATAB v2.0f-lin.ifort 2020-May-20 06:09:47 2020-May-20 06:09
1912-Jan-30 22:55 00:02 Jupiter 1.5767119215759 1.57671081247982 1.57671303070702 3.46362895039789 3.30489170457521 2419432.454783823 2.25740082030856 411.802858825108 16.6243792453871 83.167612495015 2597891.13802767 T 27 CATAB v2.0f-lin.ifort 2020-May-20 06:09:47 2020-May-20 06:09
1972-Nov-28 10:21 00:02 Jupiter 1.73604395049749 1.73604283814397 1.73604506285179 2.20539272387506 1.9717883709119 2441649.931225469 1.49346464559984 113.091598457338 86.1665685153612 -1.06137355138189 1057107.04819726 T 27 CATAB v2.0f-lin.ifort 2020-May-20 06:09:47 2020-May-20 06:09
1982-Dec-22 05:00 < 00:01 Jupiter 1.68762272025628 1.68762208029914 1.68762336021602 3.5471740078781 3.4027397644804 2445325.708039829 0.749182191528738 144.70171579622 17.08667788173 79.9086674123172 2755084.16413956 T 27 CATAB v2.0f-lin.ifort 2020-May-20 06:09:47 2020-May-20 06:09
2043-Sep-28 16:06 < 00:01 Jupiter 1.63262043398662 1.6326197422365 1.63262112573692 2.60866004575559 2.40155864313177 2467521.170963675 0.847236603841764 114.03745369034 39.2556381987489 -82.1694088710252 1613967.65841119 T 27 CATAB v2.0f-lin.ifort 2020-May-20 06:09:47 2020-May-20 06:09
2053-Nov-11 23:09 00:01 Jupiter 1.82209055929471 1.82208946944403 1.82209164914953 3.66836613694922 3.53937622744934 2471218.464790097 1.00273777943331 162.839949326953 18.3741148176127 72.7091891127554 2678065.82117422 T 27 CATAB v2.0f-lin.ifort 2020-May-20 06:09:47 2020-May-20 06:09
2114-Aug-23 05:31 00:03 Jupiter 1.57157983101257 1.57157898570421 1.57158067633254 2.79646997970653 2.59659766767231 2493416.729961347 2.51911069062632 318.745853950813 32.8587673239089 -81.2137472816713 1805068.37111238 T 27 CATAB v2.0f-lin.ifort 2020-May-20 06:09:47 2020-May-20 06:09
2124-Oct-08 06:21 00:03 Jupiter 1.96603085873132 1.96602823187292 1.96603348560826 3.84079034274844 3.72693078285918 2497115.764416559 2.74294746915953 337.232233678257 19.7889538828612 68.5613081860358 2864413.59534442 T 27 CATAB v2.0f-lin.ifort 2020-May-20 06:09:47 2020-May-20 06:09
2185-Jul-27 18:46 00:04 Jupiter 1.55170409517549 1.55170357056979 1.55170461978119 2.90844259249293 2.7142782287872 2519323.282243442 4.24802076438571 611.487174212927 26.4155488084032 -87.5400633263834 1948116.02832466 T 27 CATAB v2.0f-lin.ifort 2020-May-20 06:09:47 2020-May-20 06:09

Alternate Designations
 1999 JM57 = 1976 EO = 1985 VV1 = 1996 VU30 = 1998 FZ98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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