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85577 (1998 DC2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085577
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2144770442141912 6.1248e-08  
a 3.980980786929534 3.5458e-08 au
q 3.127151794675403 2.5365e-07 au
i 4.521471116655796 6.4449e-06 deg
node 28.68931892153465 6.4246e-05 deg
peri 4.603546720970285 6.5395e-05 deg
M 11.35292111597899 1.1839e-05 deg
tp 2458909.006831327899
(2020-Feb-29.50683133)
9.5057e-05 TDB
period 2901.239283306351
7.94
3.8761e-05
1.061e-07
d
yr
n .124084904706561 1.6578e-09 deg/d
Q 4.834809779183666 4.3062e-08 au
  Orbit Determination Parameters
   # obs. used (total)      716  
   data-arc span      9103 days (24.92 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52962  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:56:13  

Additional Information
 Earth MOID = 2.13352 au 
 Jupiter MOID = .626226 au 
 T_jup = 3.010 
[ 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 13.6   n/a MPO502666  
diameter diameter 10.811 km 0.721 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.042   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

85577 (1998 DC2)          Discovered 1998-Feb-21 by Galad, A., Pravda, A. at Modra
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1916-Sep-16 07:27 00:02 Jupiter 1.80923914846038 1.80923847593349 1.80923982098727 4.84994648951524 4.75243630929696 2421122.810601972 1.98585876362788 54.6138044595692 30.8255353306487 -85.755790360862 2823185.12867118 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
1940-May-15 12:40 00:02 Jupiter 1.77336573385089 1.7733649023518 1.77336656534987 4.72808240571731 4.62595851011629 2429765.027869874 2.21158719914224 56.137431020544 37.8675608253011 83.6624567293832 2294680.90268847 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
1964-May-10 01:50 00:02 Jupiter 1.7908636507804 1.79086281340805 1.79086448815274 4.80572363857156 4.70627689580028 2438525.576313988 1.96407863105651 50.2861267831229 38.6835555818979 85.7958790210667 2380733.82199472 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
1988-Jul-07 06:06 00:01 Jupiter 1.80868436305466 1.80868360658212 1.80868511952709 4.79957540083492 4.70098997516238 2447349.754067268 1.22611147273262 49.1538938643993 34.2725474779986 -78.3871972810085 2653033.70118524 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
2012-Sep-06 19:57 < 00:01 Jupiter 1.81267245401597 1.81267170556075 1.8126732024712 4.63220344285452 4.53020442382085 2456177.331149819 0.404170155086606 54.8936877315251 32.7217028081107 -77.094560849031 2574201.20846932 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
2036-Sep-01 06:09 00:01 Jupiter 1.81535005360078 1.8153492263546 1.81535088084695 4.48127983114472 4.37592170407025 2464937.756410833 1.12362680898001 58.578105443331 35.3460626550585 -76.7571148579969 2100902.75884183 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
2060-Apr-29 20:24 00:02 Jupiter 1.84606103482916 1.8460601932855 1.84606187637272 4.61881877004109 4.51838831575976 2473579.350099865 1.83562268440319 57.6889522685826 35.5222540400318 -74.8770876627837 1934018.04781427 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
2083-Sep-03 23:42 00:02 Jupiter 1.90690561895794 1.90690491958206 1.90690631833381 5.04958185413191 4.96083693344723 2482106.487329441 1.99495817815904 54.0639353620165 29.7076462149107 -74.6837585118903 2521893.97393155 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
2106-Oct-26 01:34 00:02 Jupiter 1.94567434982192 1.94567373762387 1.94567496201996 5.44325198080643 5.36267840613011 2490558.565578865 1.83397064391967 54.8122232250484 28.3050114548959 -83.5896270439201 3333984.1126542 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
2129-Nov-28 08:15 00:02 Jupiter 1.93059728678856 1.93059669464001 1.9305978789371 5.47294131429393 5.39218088028087 2498992.843597545 1.69985138931926 63.5793196021821 27.7549175985985 86.9505521922633 3447374.10267329 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
2153-Jan-29 17:57 00:02 Jupiter 1.87815640308775 1.87815583240771 1.8781569737679 5.16194282441718 5.07382315741165 2507456.247749143 1.81732209810172 70.4401488910529 24.3625769350874 81.0007609772353 3632160.98420642 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
2176-Jun-21 02:01 00:02 Jupiter 1.8210561318388 1.82105547085236 1.82105679282565 4.82137642920755 4.72391961383225 2515999.584103318 2.07544276587219 72.1343903945131 22.8005830895323 73.7866210175413 3337575.866968 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
2200-Mar-11 09:41 00:02 Jupiter 1.78911778349543 1.78911701331944 1.78911855367183 4.72493005355276 4.62364612296392 2524662.903715916 2.08562033729913 70.6888691019388 23.7407517012244 67.8754896370857 2978721.79052394 T 21 CATAB v2.0f-lin.ifort 2020-Aug-25 07:56:26 2020-Aug-25 07:56
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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